STANFORD TELECOMMUNICATIONS INC
10-K, 1998-06-24
RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
- ------------------------------------------------------------------------------

                                    FORM 10-K

            [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                    For the fiscal year ended March 31, 1998

                                       OR

          [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                 For the transition period from ______ to ______


                         Commission file number 0-12734

                        STANFORD TELECOMMUNICATIONS, INC.
             (Exact name of registrant as specified in its charter)

         Delaware                                                 94-2207636
(State or other jurisdiction of                               (I.R.S. Employer
incorporation or organization)                               Identification No.)

 1221 Crossman Avenue                                               94089
 Sunnyvale, California                                            (Zip Code)
(Address of principal
 executive offices)

               Registrant's telephone number, including area code:
                                 (408) 745-0818

           Securities registered pursuant to section 12(b) of the Act:
                                      None

           Securities registered pursuant to section 12(g) of the Act:
                                  Common Stock
                          Common Stock Purchase Rights
                                (Title of Class)

Indicate  by check  mark  whether  the  registrant:  (l) has filed  all  reports
required to be filed by section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days.

                                    Yes _X_  No ___


<PAGE>


[X]      Indicate by check mark if disclosure of delinquent  filers  pursuant to
         Item 405 of  Regulation  S-K is not contained  herein,  and will not be
         contained,  to the best of registrant's  knowledge, in definitive proxy
         or information statements incorporated by reference in Part III of this
         Form 10-K or any amendments to this Form 10-K.

As of May  29,  1998,  the  aggregate  market  value  of  voting  stock  held by
non-affiliates of the registrant,  based on the closing sale price of such stock
on the Nasdaq National Market, was $148,382,115.  Shares of Common Stock held by
each officer, director and ten percent stockholder of the registrant, except for
Kopp Investment  Advisors,  Inc., have been excluded in that such persons may be
deemed  to  be  affiliates.  This  determination  of  affiliate  status  is  not
necessarily a conclusive determination for other purposes.

The number of shares of the  registrant's  Common Stock  outstanding  on May 29,
1998 was 12,975,588.

Documents Incorporated by Reference

Portions of the  registrant's  Annual Report to Stockholders for the fiscal year
ended March 31, 1998 (the "Annual Report to Stockholders"),  are incorporated by
reference in Parts II and IV of this Form 10-K. Portions of the definitive proxy
statement  for the Annual  Meeting of  Stockholders  to be held on June 24, 1998
(the "Proxy Statement"),  are incorporated by reference in Part III of this Form
10-K.



<PAGE>


                                     PART I

ITEM 1.  BUSINESS

         Stanford Telecommunications, Inc. ("Stanford Telecom" or the "Company")
designs,  manufactures, and markets advanced digital communications products and
systems to  establish  or enhance  communications  via  satellites,  terrestrial
wireless and cable. The Company's  technical  strengths include:  system design,
communication waveforms,  modulation and demodulation  techniques,  ASIC design,
Radio  Frequency  (RF)  antennas  and  downconverters,  software  and  firmware,
Asynchronous  Transfer Mode (ATM) design and advanced  manufacturing  techniques
and processes.

         The Company was  incorporated in California in 1973 and  reincorporated
in  Delaware in 1988.  The  Company's  fiscal  year is composed of four  13-week
quarters,  each of  which  ends on the  Thursday  closest  to the  corresponding
calendar quarter end. Fiscal year 1998 ended on March 26, 1998.


BASE BUSINESS DISCUSSION

     The Company's principal base business areas and products include:

     Advanced Communications for Government Agencies and Commercial Applications
     Satellite Earth Terminals
     Air Traffic Control Systems Modernization
     Global  Position  Satellite (GPS) Design and Development
     Commercial Telecommunications Chip and Board Level Products
     Commercial Electronic Contract Manufacturing


Advanced Communications for Government Agencies and Commercial Applications

         DSCS  Operational  Control  System  ("DOCS").  The  Company  developed,
installed and now assists in the operation of an extensive  network of computers
and software  which performs  control and  monitoring  functions for the Defense
Satellite  Communication System ("DSCS").  Control of the DSCS is complex due to
the different  types of multiple  access  techniques  used and the need to react
quickly to communications  requirements and to hostile jamming actions. The task
of  optimizing  and  controlling  the many  thousands of  parameters in the DSCS
network  is  a  sophisticated  computational  problem  requiring  both  advanced
computers and extensive information processing. The DOCS is comprised of network
management and control  subsystems  that are used as tools for managing the DSCS
ground station and space communication payload assets. The DSCS must be operated
and maintained at peak  efficiency and maximum  availability  as it is often the
only means of communication with deployed forces. The DOCS3 contract was awarded
to Stanford  Telecom in December 1996 by the U.S. Army Space  Command.  With the
award of this contract, Stanford Telecom continues to provide on-site operations
and  maintenance  support,  software  support,   integrated  logistics  support,
training,  and depot support  services at twelve  worldwide  sites. The contract
consists of a one-year base and four one-year  options,  with a total base value
if all options are  exercised,  of  approximately  $43.9  million.  Option I was
exercised  during  fiscal year 1998.  Stanford  Telecom  has been the  incumbent
contractor  for these  services  since 1981.  In addition to these basic support
tasks,  the contract  includes  provisions  which would allow the  Government to
increase the existing  scope of the  contract by adding  tasks  associated  with
system  enhancements and system  modifications,  which may be required to extend
the system's life expectancy.

                                      -1-

<PAGE>


         Universal  Modem.  Stanford  Telecom  was  awarded a contract as a team
member on the Rockwell Universal Modem System (UMS) Terminal Production Program.
The UMS will provide Army, Air Force, and Joint  Communications  Support Element
users  with  low  data  rate  and  medium  data  rate  satellite  communications
capability using Super High Frequency (SHF),  Defense  Satellite  Communications
System (DSCS),  NATO, and commercial  satellites to include C and Ku bands.  The
initial contract,  priced at $5.8 million is for the first article qualification
testing and delivery of ten System Planning Computers for field operational test
and  evaluation.  The  UMS  operates  in  the  SHF  band  and  will  provide  an
interoperable digital voice and data satellite  communications  capability under
jamming and scintillation for ground (fixed and  transportable),  airborne,  and
shipboard users.  This system will enable satellite  communications  between the
United States,  United Kingdom,  France,  and other NATO forces.  Deliveries are
expected to commence during fiscal year 2000.

         Replacement BATSON (RBATSON).  During fiscal year 1997, the Company was
awarded the RBATSON  contract by the U.S. Army which has a total value including
options of $14.0  million.  The RBATSON  provides  protection  for the U.S. Army
critical satellite  commanding and data  transmission.  The RBATSON system which
consists  of a Key  Generator/Data  Processing  Assembly  chassis,  a  Frequency
Generator/Radio  Frequency  Transmission chassis, and Maintenance Test Equipment
and provides the  capability  for the Satellite  Configuration  Control  Element
(SCCE)  of the  DOCS to  interface  with  the DSCS  satellites.  Deliveries  are
expected to commence in fiscal 1999.

         Replacement  Satellite  Configuration  Control Element. The Company was
awarded a  contract  in  fiscal  year 1996  from the U.S.  Army to  provide  the
configuration control element in support of network management for the DSCS. The
total value of this contract, including options, is approximately $21.7 million.
Under this  contract,  the  Company  will  provide  the  software  and  hardware
necessary to fully  configure,  test,  and deliver this element of the satellite
system.  The base  contract is  expected to be  completed  during  fiscal  1999.
Production  options are expected to extend the contract's  period of performance
through the year 2001  although  there can be no assurance  that the  Government
will exercise options to procure additional production hardware.

         Single Channel Transponder Injection Subsystem (SCTIS). The Company has
employed  its  spread  spectrum   technology  in  the  design,   production  and
installation of high performance  anti-jam uplink  transmission  systems for the
U.S. Air Force.  These systems protect emergency messages being sent through the
DSCS against jamming and interception.  Since the program commenced in 1978, the
Company has  delivered  twelve  SCTIS  systems  plus spare parts to the U.S. Air
Force.  The Company  has  received  numerous  contract  modifications  requiring
delivery of system enhancements, spares and additional support equipment. During
fiscal  year 1998,  the  Company  completed  deliveries  on the twelve  upgraded
systems and an Enhanced Link Simulator. Delivery of the SCTIS upgraded spares is
expected to be completed during fiscal 1999.

         Tracking  and  Data  Relay  Satellite  Systems  (TDRSS).  The  National
Aeronautics and Space  Administration  (NASA) Tracking and Data Relay Satellites
enable NASA to maintain global continuous  communications with the space shuttle
and NASA satellites,  even when they are not in direct line-of-sight to tracking
stations in the continental  United States. The Company has been supporting NASA
on the TDRSS  Program  since  1977.  During  fiscal  year 1996,  the Company was
awarded a  follow-on  contract  consisting  of a one year base plus two one year
options, with a total value including options of $21 million. During fiscal year
1998,  the  Government  exercised an option which  extends the contract  through
February  1999. The Company has several  important  roles in this billion dollar
satellite  system,  including  study and  system  engineering  support,  a major
long-term  subcontract  to support TDRSS  network  control,  prime  contracts to
develop and assess  space/ground

                                      -2-

<PAGE>


segment  architectures for upgrading the TDRSS system, and assisting NASA in the
deployment of a new TDRSS ground terminal in Guam. The Company is in the process
of developing a variety of advanced products for communications via TDRSS. These
advanced products include:  Space Station Early Communication  System;  Software
Programmable  Advanced  Receiver and Third Generation  Beamforming  System.  The
Company believes there may be market  opportunities  for these products or their
derivatives;  however,  revenues  from these  products have not been material to
date and  there  can be no  assurance  that  these  products  will  gain  market
acceptance.

         WorldSpace. The WorldSpace network, is a digital, multi-media satellite
radio  broadcasting  service to the emerging and  under-serviced  regions of the
world. By the end of the decade, WorldSpace is expected to have three satellites
in orbit. The first, AfriStar is scheduled to be launched in late 1998, followed
by AsiaStar and  AmeriStar.  Each satellite will deliver 80+ channels of crystal
clear  audio  programming  directly to portable  receivers.  This unique  global
service  will  transmit  quality   information,   education  and   entertainment
programming  to a service area that includes 4.6 billion  people.  During fiscal
year 1998,  the Company  signed a contract to develop the  business  and network
management software,  the WorldSpace Business System, which is the foundation of
the business operations for the WorldSpace network.  Recently the Company signed
contracts  with  WorldSpace  to  provide   development  and  system  integration
services, including incorporation of terrestrial repeaters, which are a critical
component of the WorldSpace digital audio and multimedia  satellite network. The
total value of the current contracts is approximately $10.9 million.


Satellite Earth Terminals

         Global Broadcast Services (GBS) Satellite Terminal.  During fiscal year
1998,  the Company was awarded a contract  with Hughes  Information  Technology,
Inc.,  valued at $8.4 million,  with options for an  additional  $9.6 million to
support the Government's GBS Program. The GBS system operates at Ka and Ku bands
with a  throughput  of 24 Mbps and  provides  the  means to  broadcast  military
photographs, video from unmanned aerial vehicles, and programming from the Armed
Forces Radio and  Television  Network to our military  forces  overseas.  As the
provider of the GBS uplink  ground  stations,  the Company  will  deliver  three
Primary  Injection  Point (PIP)  terminals.  Contract  options provide for up to
seven dual-band (Ka and Ku)  Transportable  Theater  Injection (TTI)  terminals,
spares,  and  upgrades  to the  existing  Joint-In-Theater  Injection  terminal;
however,  there can be no  assurance  that the  Government  will fund  Hughes to
exercise the options.

         Digital Satellite  Terminals.  During fiscal year 1998, the Company was
awarded  a task  order  contract  to  provide  a  family  of  Defense  Satellite
Communication  System  (DSCS)  and  INTELSAT-type   approved  Digital  Satellite
Terminal earth  stations.  The earth stations will range in size from 1.8 meters
to 7.6 meters and will provide communications over a variety of commercial C and
Ku band satellite networks as well as the DSCS network. The contract will expand
the Company's current offering of complete earth stations,  ranging in size from
1.0 to 11 meters in S, C, X, Ku, Ka, and  military Ka  (MILSTAR)  bands.  During
fiscal year 1998, the Company  received task orders valued at $7.4 million.  The
contract  contains  options  which  could  increase  the  value to $25  million,
however,  there can be no assurance  that the  Government  will  exercise  these
options.

         Milstar  Satellite   Communications  Terminal.  The  Company  has  been
involved since 1981 in development of the U.S.  Government's  Milstar  satellite
communications  program,  designed to support stationary and mobile users in the
joint  military  services  in the 1990's and beyond.  In addition to  performing
system  engineering  tasks, the Company has developed  special test equipment in
support of the Milstar program, including a subcontract for the Milstar EHF Test
System to test the Milstar satellites in orbit. Presently,  the Company is under
contract to upgrade its Milstar  Test

                                      -3-

<PAGE>


Terminals to support the Medium Data Rate communication capabilities being added
to the Milstar Block II satellites.  The Company was selected by Lockheed Martin
Missiles & Space (Sunnyvale,  CA), prime contractor for the Milstar  satellites,
to provide  three of these  transportable  Milstar  terminals for use on special
on-orbit satellite test operations. The Company plans to deliver these terminals
during fiscal year 1999.


Air Traffic Control System Modernization

         Automation  and  Communication  System  Engineering.  Since  1984,  the
Company has been  supporting a FAA program to upgrade and modernize the nation's
air traffic  control (ATC) and air transport  navigation  system.  The Company's
activities  include ATC automation and  communications  system  engineering  and
support to FAA special projects activities such as the relocation of the Chicago
O'Hare  ATC  Tower  Complex.  The  Company  is  also  supporting  the FAA in its
acquisition of the new terminal area ATC automation system. The above activities
are being performed under two separate  Department of Transportation  contracts:
one to the FAA for  support  in the  communications,  navigation,  surveillance,
automation  and weather  areas which was awarded  during fiscal year 1998 with a
potential value of $10 million including options,  and one to the Volpe National
Transportation System for transportation, system engineering and R&D support.

         Satellite Based Air Traffic  Control System.  The Company was awarded a
contract during fiscal year 1997 to support the FAA's implementation of a Global
Positioning  System (GPS) Wide Area  Augmentation  System  (WAAS).  The contract
consists  of a  one-year  base  and two  six-month  options  with a value  after
exercise of all options of $23 million.  Through  fiscal year 1998,  the FAA had
funded  tasks  totaling   approximately  $1.5  million.  The  Company  has  been
supporting  the WAAS  Program  since 1990.  The FAA's WAAS  Program is a central
element of the FAA's  plans to move toward a  satellite  based ATC  System.  The
Company's support of WAAS has also included  development of testbeds for related
programs in Italy and Australia. As part of this work, the Company has supported
an   international   flight  between  the  U.S.  and  Italy  that   demonstrated
international  interoperability  capabilities of WAAS. The Company believes that
an international  need exists for WAAS  capabilities and it plans to pursue such
opportunities as they arise.


Global Positioning Satellite (GPS) Design and Development

         GPS L-Band  Test  System.  During  fiscal  year 1998,  the  Company was
awarded a contract  with a value of $5.6  million by Boeing  North  American  to
design and deliver  factory test sets for the next  generation  Block IIF Global
Positioning System Satellites. Each of the deliverable systems will be housed in
equipment  racks and consist of a combination  of commercial  test equipment and
Company-designed  equipment.  The  system  will be used in  Boeing's  Seal Beach
facility to provide  extremely  accurate  measurements of critical L-Band signal
parameters  and satellite  delays.  Deliveries  are expected to commence  during
fiscal year 1999.


Commercial Telecommunications Chip and Board Level Products

         Commercial  Telecommunications  Chip  and  Board  Level  Products.  The
Company designs,  manufactures and markets a wide range of Application  Specific
Integrated  Circuits  (ASIC)  and  board  level  assemblies  for  a  variety  of
commercial  telecommunication  applications.  These products provide the digital
signal  processing  required to transmit  and receive  information.  The Company
offers products for Phase Shift Key (PSK) modulation and  demodulation,  digital
down conversion,  the reception and transmission of spread spectrum information,
forward error  correction,  adaptive  equalization and direct digital  frequency
synthesis. Key market areas addressed by the Company

                                      -4-

<PAGE>


include:

     -   Cable/Internet  Communications.  Stanford  Telecom  has  developed  and
         patented  the  modulation/  demodulation  technology  required  for the
         "upstream"  (from the  subscriber  set-top box to the cable  "headend")
         transmission of data over hybrid  fiber/coax  (HFC) networks.  Products
         offered  include  the  STEL-1109,   a  single-chip  complete  BPSK/QPSK
         (Bi-Phase   Shift   Key/Quadra-Phase   Shift   Key)   modulator   ASIC,
         specifically  designed for the transmission of data from the subscriber
         to the  headend  and the  STEL-9257,  a Burst  Demodulator  board level
         assembly  that  provides  demodulation  of burst  QPSK  signals  in the
         upstream  environment.  The Company is working with certain cable modem
         manufacturers which have incorporated the Company's products into their
         designs.  In addition,  during fiscal year 1998, the Company  announced
         the STEL-2176  Cable Modem  subscriber  ASIC which is the world's first
         integrated upstream and downstream single chip solution for the primary
         cable modem standards MCNS and DAVIC. The Company believes it to be the
         highest performance, competitively priced solution in the market. It is
         designed  specifically  for reception and transmission of data over HFC
         cable  communications  networks--  receiving  16/64/256 QAM signals and
         sending QPSK & 16QAM modulated  signals.  Although  revenues from these
         products  have not been  material to date,  the Company  believes  that
         future revenues may increase if production orders are forthcoming.

     -   Very Small Aperture  Terminal (VSAT) Receiver  Assemblies.  The Company
         offers  board  level  receiver  assemblies  for use in  VSAT  satellite
         systems. These digital demodulator assembly products are used for rural
         telephony,  background music services and business data  transmissions.
         The  STEL-9258  Variable  Bit Rate  product can provide  signal  timing
         recovery,  demodulation,  down conversion, carrier tracking and forward
         error  correction  functions.  During  fiscal  year 1998,  the  Company
         introduced  the  STEL-9260   which  is  the  Company's  first  complete
         BPSK/QPSK   modem.  It  is  intended  for  use  in  systems  where  the
         combination of modulator and demodulator  functions in a single package
         is  important.  Although  revenues  from  the  STEL-9260  has not  been
         material to date, the Company  believes  revenues may be significant if
         production orders are forthcoming.

     -   Catalog  Products.  The  Company  offers a wide range of ASIC and board
         level products providing various digital communications  functions such
         as ASICs for spread spectrum wireless data links, a family of ASICs for
         forward  error  correction  in  communication  links,  and a series  of
         numerically  controlled oscillators and direct digital synthesizers for
         precise signal generation and control.


Commercial Electronic Contract Manufacturing

         During fiscal year 1993, the Company began to pursue  opportunities  in
commercial  contract  manufacturing.  In addition to producing its own products,
the Company offers its contract  manufacturing services to commercial customers.
Revenues  for  the  Company's  contract   manufacturing   business  amounted  to
approximately  17% of  total  revenues  for  fiscal  year  1998.  The  Company's
Sunnyvale,  California  manufacturing facilities received ISO-9001 certification
during  fiscal  year 1996.  During  fiscal year 1998,  approximately  17% of the
Company's  manufacturing  activities  were  associated  with the  Company's  own
products. The Company expects to increase the amount of manufacturing of its own
products,  if orders for wireless broadband equipment are realized.  The Company
believes  that  sufficient  capacity  currently  exists to meet  future  demands
associated with the potential increase in manufacturing levels over the next two
fiscal years.

                                      -5-

<PAGE>


COMMERCIAL STRATEGIC PRODUCT DEVELOPMENT

         Stanford   Telecom  has   initiated  a  number  of  strategic   product
developments  and business  arrangements,  including those  addressed  below, to
address a growing  worldwide market for digital  telecommunication  products and
services.  Revenues from these  initiates have not been  significant to date and
there is no assurance  that the Company will be successful  in the  development,
marketing,  distribution  and  sales  of these  products;  however  the  Company
believes that the market for these product and services is substantial.


Wireless Broadband Communications

         Wireless  broadband   communications,   also  called  Local  Multipoint
Distribution System (LMDS),  Multichannel/Multipoint  Distribution System (MMDS)
or "wireless cable",  is a new technique for two-way  transmission of high speed
digital data using terrestrial microwave links to homes and offices. The Company
has had an MMDS  demonstration  system operating in Sunnyvale,  California since
October 1996, and has performed demonstrations for a wide range of international
and domestic customers.  In addition, the Company received orders for two market
trials for MMDS  equipment  and at fiscal  year end  deployment  of these  trial
systems was underway. The Company believes that there is sizable interest in the
telephony potential in offshore markets and a growing interest in providing both
telephony  and data services in the domestic  market.  The U.S.  Wireless  Cable
Association  has  applied for  authorization  to use MMDS  spectrum  for two-way
digital multimedia  services,  which will greatly enhance the business prospects
for  this  technology.  Recently,  the  Company  installed  10  MMDS  subscriber
terminals  as part of a technical  trial system on the West Coast which is being
used to test high speed data  services.  This trial uses 16 QAM  downstream  and
QPSK upstream.  Testing is expected to continue through the Summer of 1998, when
telephony  services are expected to be implemented at the test site. The Company
is under contract to expand the number of subscriber  terminals to approximately
150 in market tests of the services being offered.

         The Company's LMDS development  continued  throughout fiscal year 1998,
with the pace accelerating as the fiscal year ended. The FCC auction was delayed
until late in the fiscal year,  but has now been  completed.  The Company is now
conducting LMDS technology  demonstrations and building field trial systems. The
Company  expects to deploy market trial systems in  mid-fiscal  year 1999,  with
production  volumes  expected  to be ordered  later in fiscal  year 1999.  These
systems operate in the 28-31 GHz microwave  frequency  spectrum.  At fiscal year
end, two trial systems were  deployed,  one in Asia, and the other in the United
States.  Additional  trial  systems  are on order for  deployment  in the second
quarter of fiscal  year 1999.  The  Company has  entered  into  development  and
supplier  agreements with two major  communication  systems integrators for LMDS
equipment.


Satellite Personal Communications

         In recent years a number of worldwide  satellite-based cellular systems
have been  proposed,  and in some  cases  implementation  has  begun,  including
Inmarsat's ICO, Motorola's Iridium and Loral/Qualcomm's  Globalstar. The Company
had been carrying out research and  development on the medium  altitude  Odyssey
system being proposed by TRW/Teleglobe.  During fiscal year 1998,  TRW/Teleglobe
announced that they would not proceed with the Odyssey Program. Notwithstanding,
the Company believes that its proprietary  version of the OCDMA (Orthogonal Code
Division Multiple Access) waveform in transmission of voice data  communications
is  applicable  to other  programs  and is  pursuing  opportunities  with  other
companies for the use of the

                                      -6-

<PAGE>


waveform as well as  development  support.  There can be no  assurance  that the
Company will successfully produce revenues from satellite personal communication
systems during fiscal year 1999, or at all.


OTHER BUSINESS

         Manufacturing

         Stanford  Telecom's  products are generally  manufactured from standard
components, its proprietary ASICs and other components or subsystems produced to
the Company's  specifications.  Most of the Company's  current  products contain
microprocessors  for which  proprietary  software is designed  and tested by the
Company's  engineers.  The  Company  does not have a  semiconductor  foundry  or
fabrication  facility.  For the production of ASICs, the Company  contracts with
companies that have foundry  capability,  including Lucent  Technology Inc., and
Amercian Microsystems Inc.

         In  many  cases  only  a  single   source  is  available  for  specific
components,  and thus there is a risk of delay in  delivering  finished  systems
within  contractual  schedules.  The Company  attempts to minimize  this risk by
securing  second  sources,  finding  alternate  technologies to perform the same
function and maintaining  adequate  inventories of single source components.  To
date, the Company has  experienced  no material  adverse impact due to component
unavailability,   product  returns  or  contract  renegotiations.  Many  of  the
Company's  products are covered by a 90-day to one-year warranty under which the
Company will repair or replace  defective  parts. To date,  warranty expense has
not been significant.

         Marketing and Customers

         The Company  markets its  products and services to agencies of the U.S.
Government,  prime  contractors  to these  agencies and an increasing  number of
commercial customers. The Company's marketing is conducted by its management and
technical  staff,  and in the  case of its  commercial  business,  domestic  and
international sales  representatives are also utilized.  The Company's marketing
efforts for its  government  business  consist of  responding  to  requests  for
proposals  and  solicitations  for bids from U.S.  Government  agencies or prime
contractors  to  these  agencies  and  direct  marketing  of its  off-the-shelf,
standardized  products.  The Company  markets its ASICs and commercial  products
primarily  through  its  direct  sales  personnel   consisting  of  9  full-time
employees,  18 independent sales representative  locations covering the U.S. and
Canada and 27 other  independent  sales  representative  offices  covering other
international territories. The Company also places advertisements for commercial
products,  particularly its Wireless Broadband (LMDS/MMDS) and ASIC products, in
a number  of trade  magazines  and  participates  in trade  shows  and  industry
symposiums.  In some cases, the major  communication  system integrators who are
pursuing  wireless  broadband   opportunities  market  the  Company's'  products
directly to the service providers. The Company may be requested to support these
marketing activities from time to time.

         During fiscal years 1998, 1997 and 1996 approximately 62%, 59% and 54%,
respectively,  of the Company's  revenues were  attributable  to contracts  with
numerous agencies of the U.S. Government.  No single contract accounted for more
than 10% of  revenues  during  fiscal  years  1998,  1997 or  1996.  Some of the
Company's  U.S.  Government  sales are made under letter  contracts in which the
final contract  price is agreed upon after work has begun.  To date, the Company
has had a small amount of revenue from international  customers.  Such sales are
often subject to U.S. State Department approval and export license requirements.

                                      -7-

<PAGE>


         Competition

         Competition  is intense among  providers of digital  telecommunications
equipment,   products  and  services.  In  the  Company's  government  business,
competitors include major defense contractors,  telecommunications equipment and
electronics  firms, and systems  integrators,  most of which have  significantly
greater financial,  marketing and operating  resources than the Company, as well
as broader product lines and technological capabilities.  As a result of reduced
defense spending by the U.S. and other governments,  competition has become more
intense in the  Company's  government  business.  Although no single  competitor
competes with the Company in all of its product  lines,  a number of competitors
such as Harris Corporation, Loral-Space, Lockheed-Martin, TRW, BDM, Hughes, CSC,
Broadcom  Corporation,  Hitachi,  and  Rockwell  International  compete with the
Company in various  market  segments.  Certain of the Company's  customers  have
technological  capabilities  in the Company's  product areas and could choose to
develop and manufacture  certain products  themselves  rather than purchase from
suppliers  such as the Company.  As the Company  continues to transition to more
commercial  business,  it expects to face new and  increasing  competition  with
respect to its commercially oriented products and services. The Company believes
that,  in its highly  specialized  technical  environment,  price,  performance,
reputation,  reliability,  on-time delivery and customer support are the primary
competitive factors among companies having similar technical capabilities.

         Backlog and Bookings

         Funded  backlog  includes:  (i) projects  and orders  covered by signed
contracts for which the government has specifically  allocated funding; and (ii)
purchase  orders from  commercial  customers.  The Company's  backlog is largely
attributable  to  agencies  of the  U.S.  Government.  In the  case  of  certain
long-term  contract  awards,  the U.S.  Government  typically  makes  the  funds
available  over the life of the  contract as opposed to the time of the contract
award.  In such cases the Company  reports as funded bookings only the amount of
the funds  specifically  allocated and the resultant  backlog as funded backlog.
The Company  does not include  unexercised  options in  backlog.  The  Company's
funded bookings for fiscal 1998 and 1997 were $163.0 million and $168.5 million,
respectively,  and the Company's  backlog at the end of fiscal 1998 and 1997 was
$93.6 million and $83.9  million,  respectively.  At March 31, 1998 backlog from
the Company's  government and commercial  businesses  were  approximately  $59.3
million and $34.3 million,  respectively.  There can be no assurance that funded
backlog  will be  completed  and  booked as  revenue.  The  Company's  contracts
typically contain contingency  provisions permitting termination by the customer
at any time.  Cancellation of pending  contracts or termination or reductions of
contracts  in  progress  may have a  material  adverse  effect on the  Company's
results of operations.

         Research and Development

         The telecommunications industry is characterized by rapid technological
change,  requiring a continuous  effort to enhance existing products and develop
new products.  The Company believes that its continued  success depends in large
part on its  ability  to develop  new and  enhanced  digital  telecommunications
products.  The Company conducts extensive research,  development and engineering
activities  with the objective of  developing  products and systems that provide
for  cost-effective,   digital  wireless   telecommunications  and  high-quality
satellite  communications.  Since its  inception,  the Company  has  developed a
number of innovative and  proprietary  digital  telecommunications  technologies
through  a  combination   of  customer  and  internally   funded   research  and
development.  Company-funded expenditures for research and development including
bid and  proposal  activities  for  fiscal  years  1998,  1997,  and  1996  were
approximately $13.6 million, $11.9

                                      -8-

<PAGE>


million and $8.4 million,  respectively,  which represented 8.9%, 7.1%, and 5.8%
of total revenues, respectively.

         The Company's  revenues have  historically  been derived primarily from
performing  contract research and development and engaging in limited production
contracts with agencies of the U.S. Government and their prime contractors. As a
result,  a substantial  portion of the digital  telecommunications  research and
development  performed by the Company since its inception has been funded by its
customers  and  recorded as revenues by the  Company.  Accordingly,  the cost of
performing this  customer-funded  research and development is included in "Costs
of Revenues" in the Company's financial statements.

         The Company  continually  seeks to develop new products for  commercial
applications  to leverage its leading  digital  telecommunications  technologies
that  have been  funded  through  many  military  and  government  research  and
development  contracts  since the early  1970's.  Over the last two  years,  the
Company  has  significantly  increased  its level of  independent  research  and
development  expenditures.  This increase is necessary to  successfully  develop
competitive products for the commercial telecommunications market. During fiscal
year 1998 approximately  $10.0 million, or 72% of the Company's R&D was invested
in these strategic commercial  initiatives.  The Company has applied much of its
research and development  expenditures to commercial products and initiatives in
the areas of wireless and cable broadband communications.

         Employees

         As of March  31,  1998,  the  Company  employed  969  full-time  and 24
part-time employees and 13 professional consultants. Of the full-time employees,
564  are in  technical  operations,  124  in  manufacturing  operations,  120 in
management,  99 professional  non-technical,  and 62 in support  positions.  The
majority of the Company's  employees  are highly  skilled  technical  personnel.
Several are nationally known leaders in the field of digital telecommunications.
Over 612  employees  hold  advanced  degrees,  including  approximately  39 with
doctoral degrees. None of the employees are represented by a labor union and the
Company  has  never had a work  stoppage.  The  Company  believes  its  employee
relations  to be good.  Due to the  nature of the  Company's  business,  a large
number of its technical  employees must obtain security clearances from the U.S.
Government,  which limits the  available  pool of eligible  candidates  for such
positions to those who can satisfy prerequisites for such clearances.

         Patents and Proprietary Rights

         The success of the Company's  business depends in part upon its ability
to  protect  trade  secrets,  obtain or  license  patents  and  operate  without
infringing  on the rights of others.  Although the Company has obtained  patents
covering certain of its technologies,  it believes that the ownership of patents
has not generally been a significant factor in its government  business and that
its success depends primarily on innovative skills,  technical  competence,  and
the marketing and managerial abilities of its personnel. The Company relies on a
combination of trade secrets, copyrights,  patents, nondisclosure agreements and
technical  measures  to  protect  its  proprietary  rights in its  products  and
technology.  Such  protection  may  not  preclude  competitors  from  developing
products with features similar to the Company's  products.  The Company believes
that patents will play an increasingly important role in its commercial business
and  during  the  past  two  years  the  Company  has   received  or  filed  for
approximately 70 patents with the U.S. Patent and Trademark Office.  The Company
expects it will continue to aggressively  pursue  additional  patents to protect
its  intellectual  property.

                                      -9-

<PAGE>


The  Company   requires  its  employees  to  execute   proprietary   rights  and
nondisclosure  agreements and to maintain the  confidentiality  of the Company's
proprietary information.

         Government Regulation

         The  Company's  operations  are subject to compliance  with  regulatory
requirements  of federal,  state and local  authorities,  including  regulations
concerning employment  obligations and affirmative action,  workplace safety and
protection of the environment.  In addition,  many of the Company's products and
proposed  products  are or will be  subject  to  various  regulations  including
regulations  promulgated by the Federal Communications  Commission,  the FAA and
the DoD. While compliance with applicable regulations has not adversely affected
the Company's operations in the past, there can be no assurance that the Company
will continue to be in compliance in the future or that these  regulations  will
not change.

         In  addition,   the  Company  must  comply  with  detailed   government
procurement  and  contracting  regulations  and with  U.S.  Government  security
regulations, including those necessary to maintain required facility clearances.
Certain  of  these  regulations  carry   substantial   penalty   provisions  for
nonperformance or  misrepresentation  in the course of negotiations.  Failure of
the Company to comply with its government  procurement,  contracting or security
obligations  could  result  in  penalties  or  suspension  of the  Company  from
government  contracting,  which  would  have a  material  adverse  effect on the
Company's results of operations.

         The  Company  is  required  to  maintain  a  U.S.  Government  facility
clearance at most of its locations. This clearance could be suspended or revoked
if the  Company  is  found  not to be in  compliance  with  applicable  security
regulations.  Any such  revocation  or  suspension  would  delay  the  Company's
delivery of its products to customers. Although the Company has adopted policies
designed to assure its compliance  with  applicable  regulations  and there have
been no suspensions or  revocations  of any of its  facilities,  there can be no
assurance  that the approved  status of the Company's  facilities  will continue
without interruption.

         Forward Looking and Cautionary Statements

         In the interest of providing the Company's  shareholders  and potential
investors with certain Company information, including management's assessment of
the Company's future potential,  certain statements set forth herein (a) contain
or are based on  projections  of revenue,  income,  earnings per share and other
financial  items or (b)  relate  to  management's  future  plans,  expectations,
objectives or to the Company's future economic performance.  Such statements are
"forward-looking  statements"  within  the  meaning  of  Section  27A(i)  of the
Securities  Act of 1933,  as amended,  and in Section  21E(i) of the  Securities
Exchange Act of 1934, as amended.

         Although any forward-looking  statements  contained herein or otherwise
expressed  by or on  behalf  of the  Company  are to  the  knowledge  and in the
judgment of the  officers and  directors of the Company,  expected to prove true
and to come to pass,  management is not able to predict the future with absolute
certainty.   Accordingly,   shareholders  and  potential  investors  are  hereby
cautioned  that certain  events or  circumstances  could cause actual results to
differ   materially   from  those   projected   or   predicted.   In   addition,
forward-looking  statements are based on management's  knowledge and judgment as
of the date such  statements are made, and the Company does not intend to update
any  forward-looking  statements to reflect  events  occurring or  circumstances
existing thereafter.

                                      -10-

<PAGE>


         In particular,  the Company  believes that the following  factors could
impact  forward-looking  statements  made  herein  or in other  written  or oral
releases and by hindsight,  prove such  statements to be overly  optimistic  and
unachievable:

       1. Future  revenues  on  government  contracts,  including  contracts  in
progress,  are subject to reduction or cancellation  without prior notice at the
convenience  of the  U.S.  Government.  Budgetary  constraints  and  changes  in
spending  priorities in government  agencies such as the  Department of Defense,
NASA,  and  the  FAA in the  past  have  resulted  in  sudden  program  changes,
reductions or cancellations and such conditions are expected to continue.

       2.  The  Company  has  in  the  past  accepted  fixed  price  development
commitments for both government and commercial  contracts.  Although the Company
attempts  to bid  fixed  price  development  contracts  at an  amount  above the
expected costs of development and production,  the Company has from time to time
experienced  significant  cost  overruns  which  cannot  be  recovered  from the
customer.  The Company may in the future experience material cost overruns which
could adversely affect operating results over the life of the program.

       3. The Company's  basic  strategy is to employ its technology in wireless
telecommunications and digital signal processing in the commercial  environment,
generally as components  or  subsystems in the product or service  offerings for
large  telecommunications  companies. The transition from a government contracts
focus to  commercial  development  will expose the  Company to certain  business
risks not previously  encountered.  Of greatest significance will be the success
of the  Company's  customers in marketing the products or services for which the
Company provides key technology components,  or subsystems. A successful product
development effort will not produce meaningful long-term revenues or profits for
the Company unless its customer obtains market  acceptance of its end product or
service.  Factors such as system price,  competitive pressures,  consumer demand
and the like will impact the  customer's  and the Company's  level of commercial
success. In addition,  even if a product or service achieves commercial success,
the Company will experience the continued risk that the customer will develop or
obtain lower cost alternatives to the Company's products or technical solutions.

       4. Most of the  Company's  material  contracts are awarded to the Company
with options to extend the contracts.  A contracting  party's decision regarding
the options  particularly in the case of government  contracts,  can be based on
numerous factors,  events and circumstances  which may be outside the control of
the contracting  party and which are difficult to predict.  For example a change
in government priorities, budgets and or technologies. The Company has little or
no control over whether these options are exercised.

       5.  The   Company's   Commercial   Manufacturing   Division   has   grown
significantly   since  being   established  in  1993.   The  Division   provides
manufacturing  services to  producers  of  electronics  and medical  products on
either an inventory  consignment  or turnkey basis.  The contract  manufacturing
business is subject to wide swings in demand,  is price  sensitive and extremely
competitive.  In addition,  to the extent inventory is purchased in anticipation
of  future  contracts,  the  failure  to  obtain  such  contracts  can lead to a
reduction in the value of such inventory. The Company's Commercial Manufacturing
Division  does not  generally  operate  with  long-term  contracts  and is often
required to bid each new job even for major customers.

       6.  Many  of the  components  incorporated  in the  Company's  commercial
products, including all semiconductor components, are purchased from third party
vendors. Certain key components are sole sourced. From time to time, the Company
may  experience   significant  delays  in  component

                                      -11-

<PAGE>


availability  which could adversely impact its ability to make timely deliveries
to its customers.  Such events could cause  expected  revenues to be delayed and
the possible loss of future orders.


ITEM 2.  PROPERTIES

         The Company's  headquarters and principal engineering and manufacturing
facilities  are  currently  located in four  adjacent  buildings  in  Sunnyvale,
California  where it leases  approximately  172,000  square feet.  The Company's
Sunnyvale  facility  leases  will  expire in the year 2000.  The leases  contain
options for renewal  under terms and  conditions to be negotiated at the time of
expiration.  The  Company  also leases  approximately  84,000,  46,400,  39,900,
30,900,  15,300,  11,300,  and  8,000  square  feet of office  space in  Reston,
Virginia,  Colorado Springs, Colorado,  Ashburn,  Virginia,  Annapolis Junction,
Maryland,  Lowell,  Massachusetts,  Seabrook,  Maryland,  and Tinton Falls,  New
Jersey,  respectively,  which space is used  primarily  for the  performance  of
study, system engineering and hardware contracts. The Ashburn, Reston, Annapolis
Junction,  Colorado Springs, Tinton Falls, Lowell, and Seabrook leases expire in
2008, 2006, 2003, 2002, 2002, 2001 and 2001, respectively.  The Company believes
its current  facilities  are suitable and adequate for the Company's  operations
over the next fiscal year.


ITEM 3.  LEGAL PROCEEDINGS

         The Company is involved from time to time in  litigation  incidental to
its business.  Management  believes that the outcome of current  litigation will
not have a  material  adverse  effect on its  financial  position  or results of
operations.

         In  December  1996,  the  Company  filed  an  action  against  Broadcom
Corporation alleging that certain Broadcom product(s) infringe a patent owned by
the Company. The complaint seeks an injunction against Broadcom Corporation,  as
well as the recovery of monetary  damages.  Broadcom  Corporation has asserted a
counterclaim  requesting  relief and has asserted  that they do not infringe the
patent.  The Company and Broadcom  Corporation  are  currently in  discovery.  A
claims  construction  hearing was completed in April 1998 and an order regarding
claims  construction  was filed by the Court on June 10,  1998. A trial date has
not yet been set.


ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

Inapplicable.


CORPORATE OFFICERS OF THE COMPANY

         Set forth below are the names and ages of the executive officers of the
Company,  their  principal  occupations  at present and for the past five years,
certain directorships held by each, and the term of office with the Company.

Dr. James J. Spilker,  Jr. (age 64), a founder of the Company, has been Chairman
of the Board since 1983. He served as President and Chief  Executive  Officer of
the Company from August 1981 to June 1995. Since June 1995, Dr. Spilker also has
been serving as Principal Scientist for the Company.

Dr. Val P.  Peline  (age 67) was elected as a Director of the Company in October
1985. Dr. Peline joined the Company as its President and Chief Executive Officer
effective June 5, 1995. Dr. Peline served as President of the Electronic Systems
Group,  a division  of  Lockheed  Corp.,  from 1987  until

                                      -12-

<PAGE>


he retired from such position in March 1995.  Dr.  Peline had been  President of
the Lockheed Space Division from 1984 to March 1987.

Mr. Leonard Schuchman (age 61) was elected as a Director of the Company in April
1985. Mr. Schuchman joined the Company in January 1976 and became Vice President
in February 1977. He is responsible  for directing the Company's  Communications
and Navigation Systems Operation.

Mr.  Ernest L. Dickens,  Jr. (age 51) joined the Company in October  1981.  From
April 1990 to October 1995 he directed the Company's Government Systems Services
operation. Mr. Dickens was elected Vice President in November 1995 and currently
directs the Company's Satcom Ground Systems operation.

Mr. Bronic C. Knarr (age 52) joined the Company in November 1988.  From November
1988 to April 1992 Mr. Knarr held various management positions at the Company in
support of key programs.  From April 1992 to September  1995 Mr. Knarr  directed
the Company's Satellite Communications  operations.  In September 1995 Mr. Knarr
was appointed  director of the  Company's  Manufacturing  and Quality  Assurance
operation and was elected Vice President in November 1995.

Dr.  John E.  Ohlson  (age 58) joined the  Company in March 1981 as  Director of
Telecommunications  Programs  Operations  and became Vice  President  in January
1982. In February 1991 he was named Director of Military Ground  Terminals.  Dr.
Ohlson  directed the Satellite  Communications  Group from June 1992 to November
1994. Dr. Ohlson was named as the Company's Chief Technical  Officer in November
1994 and  currently  directs the  Company's  Satellite  Personal  Communications
Operation.

Mr. Gary S. Wolf (age 47) joined the  Company in May 1978 and was  elected  Vice
President, Chief Financial Officer, Secretary and Treasurer in December 1984. In
January 1997 he was promoted to Executive Vice President.

Mr. Jerome F. Klajbor (age 42) joined the Company in February  1989. Mr. Klajbor
served as a Contracts  Manager for the Company  from 1989 to 1991.  From 1991 to
1996,  Mr.  Klajbor  served as  Director  and  subsequently  Vice  President  of
Administration  and Finance for the Company's  Communication  Navigation Systems
Operation.  He was appointed Vice President and Chief  Financial  Officer of the
Company in January 1997.

                                      -13-

<PAGE>


                                     PART II

ITEM 5. - MARKET FOR THE  REGISTRANT'S  COMMON STOCK AND RELATED SECURITY HOLDER
MATTERS

Incorporated  by reference  from page 36 of the Company's  1998 Annual Report to
Stockholders.


ITEM 6.  SELECTED FINANCIAL DATA

Incorporated  by reference  from page 35 of the Company's  1998 Annual Report to
Stockholders.


ITEM 7. MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS

Incorporated  by  reference  from pages 22  through  25 of the Annual  Report to
Stockholders.


ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

         Financial statements of Stanford  Telecommunications,  Inc. as of March
31, 1998 and March 31, 1997 and for each of the three years in the period  ended
March 31,  1998 and the report of  independent  public  accountants  thereon are
incorporated  by  reference  from pages 26  through  34 of the Annual  Report to
Stockholders. See Part IV, Item 14(a).


ITEM 9.  DISAGREEMENTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

Inapplicable.

                                      -14-

<PAGE>


                                    PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

         The   information   set  forth   under   the   caption   "Election   of
Directors-Information  with Respect to Nominees and Directors" beginning on page
2 of the  Company's  Proxy  Statement  relating  to the 1998  Annual  Meeting of
Stockholders  (the "Proxy  Statement") is  incorporated  herein by reference and
made a part  hereof in  response to the  information  required by this item.  In
addition, certain information pertaining to executive officers of the Company is
set forth on pages 12-13 hereof.


ITEM 11. EXECUTIVE COMPENSATION

         The  information set forth under the caption  "Executive  Compensation"
beginning on page 5 of the Proxy Statement is  incorporated  herein by reference
and made a part hereof in response to the information required by this item.


ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         The information set forth under the caption "Stock Ownership" beginning
on page 12 of the Company's Proxy Statement is incorporated  herein by reference
and made a part hereof in response to the information required by this item.


ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Inapplicable.

                                      -15-

<PAGE>


                                     PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

(a) The  following  report,  financial  statements  and  other  information  are
incorporated by reference from the Annual Report to stockholders and form a part
of this report:

                                                                Reference Page
                                                              ------------------
                                                              1998
                                                              Annual
                                                              Report   Form 10-K
                                                              ------   ---------
1.    Financial Statements.

      Report of Independent Public
      Accountants                                              26

      Statements of income for each
      of the three years in the period
      ended March 31, 1998                                     26

      Balance sheets at March 31, 1998 and
      March 31, 1997                                           27

      Statements of shareholders' equity for
      each of the three years in the period
      ended March 31, 1998                                     28

      Statements of cash flow for each of
      the three years in the period ended
      March 31, 1998                                           29

      Notes to financial statements                            30

2.    Financial Statement Schedules

      Report of Independent Public Accountants on Schedules                21
      Schedule II - Valuation and Qualifying Accounts                      22

         All other schedules have been omitted because the required  information
is not present or not present in amounts sufficient to require submission of the
schedule or because  the  information  required  is  included  in the  financial
statements or notes thereto.

         With the  exception of such  information  in the 1998 Annual  Report to
Stockholders  specifically  incorporated  herein by  reference,  the 1998 Annual
Report to Stockholders is not deemed "filed" as part of this report.

                                      -16-

<PAGE>


3.       Exhibits.

Exhibit Number                    Description
- --------------                    -----------
3.1(2)         Certificate of Incorporation, as amended.

3.2(2)         Bylaws, as amended.

4.1(6)         Rights  Agreement dated as of May 9, 1995 between the Company and
               The First National Bank of Boston.

4.2            Agreement re. Rights of Holders of Long-Term Debt.

10.1(5)        Consolidated, Amended and Restated Deed of Lease for the premises
               located at 1761 Business  Center Drive,  Reston,  Virginia  dated
               October 1, 1993 between the Company and the Variable Annuity Life
               Insurance Company.

10.2*(1)       1982 Stock Option Plan, as amended, and form of Agreements.

10.3*(3)       1992 Employee Stock Purchase Plan.

10.4(4)        Lease dated  November  19,  1992 for 480 Java  Drive,  Sunnyvale,
               California,  440 Moffett Park Drive, Sunnyvale,  California,  and
               1221 Crossman Avenue, Sunnyvale, California.

10.5(5)        Office  Lease  Agreement  for  141  National   Business  Parkway,
               Annapolis  Junction,  Maryland  dated  March 1, 1993  between the
               Company and Constellation Real Estate, Inc.

10.6*(8)       1991 Stock Option Plan and form of Agreements.

10.7*(8)       Management Incentive Plan.

10.8(8)        Credit  Agreement  dated December 5, 1996 between the Company and
               Bank of  America  National  Trust and  Savings  Association  (the
               "Credit Agreement").

10.9           Second  Amendment to the "Credit  Agreement"  dated  December 12,
               1997.

10.10          Office  lease  Agreement  for  45145  Research  Place,   Ashburn,
               Virginia  dated June 17, 1997  between the Company and Opus East,
               LLC a Delware limited liability company.

10.11          Rider No. three (3) to consolidated, amended and restated deed of
               lease agreement  dated May 15, 1998,  between the Company and A&A
               Fairfax Four L.L.C.

13.1(7)        Annual Report to Stockholders for the fiscal year ended March 31,
               1998.

23.1           Consent of Arthur Andersen LLP, independent public accountants.

24.1           Power of Attorney (included on the signature pages hereof).

27.1           Financial Data Schedule

- ---------------------------
*Compensatory Plan

                                      -17-

<PAGE>


(1)      Incorporated by reference from the Company's Annual Report on Form l0-K
         for the fiscal year ended March 31, 1987.

(2)      Incorporated by reference from the Company's Annual Report on Form l0-K
         for the fiscal year ended March 31, 1989.

(3)      Incorporated by reference from the Company's Annual Report on Form l0-K
         for the fiscal year ended March 31, 1992.

(4)      Incorporated by reference from the Company's Annual Report on Form l0-K
         for the fiscal year ended March 31, 1993.

(5)      Incorporated by reference from the Company's  Registration Statement on
         Form S-1, No. 33-72720.

(6)      Incorporated by reference from the Company's  Registration Statement on
         Form 8-A, dated May 24, 1995.

(7)      Only those  portions  of the  Annual  Report to  Stockholders  that are
         specifically  incorporated  by reference in this form 10-K are included
         in this exhibit.

(8)      Incorporated by reference from the Company's  Annual Report on Form 10K
         for the fiscal year ended March 31, 1996.

Reports of Form 8-K

No current Reports on Form 8-K were filed by the Company with the Securities and
Exchange  Commission  during the last quarter of the period covered by this Form
10-K.

                                      -18-

<PAGE>


                                   SIGNATURES

         Pursuant to the  requirements  of Section 13 or 15(d) of the Securities
Exchange Act of 1934, as amended,  the registrant has duly caused this report to
be signed on its behalf by the undersigned, thereunto duly authorized.


                                             STANFORD TELECOMMUNICATIONS, INC.


Dated: June 24, 1998                         /s/ James J. Spilker, Jr.
                                             ------------------------------
                                             James J. Spilker, Jr.
                                             Chairman of the Board


POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE  PRESENTS,  that each person whose  signature
appears  below  constitutes  and appoints  James J.  Spilker,  Jr. and Jerome F.
Klajbor  and each of them,  as his true and lawful  attorney-in-fact  and agent,
with full power of  substitution  and  resubstitution,  for him and in his name,
place and stead,  in any and all  capacities,  to sign any and all amendments to
this  Form  10-K and to file the  same,  with all  exhibits  thereto  and  other
documents in connection therewith,  with the Securities and Exchange Commission,
granting unto said  attorneys-in-fact  and agents,  and each of them, full power
and  authority  to do and  perform  each and every act and thing  requisite  and
necessary  to be done in  connection  therewith,  as  fully to all  intents  and
purposes as he might or could do in person,  hereby ratifying and confirming all
that said  attorneys-in-fact  and  agents,  or  either of them,  or their or his
substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

<TABLE>
         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this  report has been  signed  below by the  following  persons on behalf of the
registrant and in the capacities and on the dates indicated:

<CAPTION>
      Signature                                           Title                                    Date
      ---------                                           -----                                    ----
<S>                                         <C>                                              <C>
/s/ James J. Spilker, Jr.                   Chairman of the Board                            June 19, 1998
- -------------------------
James J. Spilker, Jr.



/s/ Val P. Peline                           President (Principal Executive                   June 20, 1998
- -----------------                           Officer) and Director
Val P. Peline    



/s/ Jerome F. Klajbor                       Vice President and Secretary,                    June 19, 1998
- ---------------------                       (Principal Financial
Jerome F. Klajbor                           and Accounting Officer)

                                                   -19-

<PAGE>


/s/ Michael Berberian                       Director                                         June 19, 1998
- ---------------------
Michael Berberian



/s/ John W. Brownie                         Director                                         June 22, 1998
- -------------------
John W. Brownie



/s/ Leonard Schuchman                       Vice President and Director                      June 22, 1998
- ---------------------
Leonard Schuchman



/s/ C.J. Waylan                             Director                                         June 22, 1998
- ---------------
C. J. Waylan
</TABLE>

                                                   -20-

<PAGE>


                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
                                  ON SCHEDULES

To Stanford Telecommunications, Inc.:

We have audited in accordance with generally  accepted auditing  standards,  the
financial  statements  included in Stanford  Telecommunications,  Inc.'s  annual
report to  stockholders  incorporated  by reference in this Form l0-K,  and have
issued our  report  thereon  dated  April 22,  1998.  Our audit was made for the
purpose of forming an opinion on those statements taken as a whole. The schedule
listed at Item 14(a)(2) is the responsibility of the Company's management and is
presented  for  purposes  of  complying   with  the   Securities   and  Exchange
Commission's  rules  and is not part of the  basic  financial  statements.  This
schedule has been subjected to the auditing  procedures  applied in the audit of
the  basic  financial  statements  and,  in our  opinion,  fairly  states in all
material  respects  the  financial  data  required  to be set forth  therein  in
relation to the basic financial statements taken as a whole.


                                                     /s/ Arthur Andersen LLP
                                                     -----------------------
                                                     ARTHUR ANDERSEN LLP


San Jose, California
April 22, 1998

                                      -21-

<PAGE>


                                   SCHEDULE II

                        STANFORD TELECOMMUNICATIONS, INC.
                        Valuation and Qualifying Accounts
                        Three years ended March 31, 1998
                                 (In Thousands)



Allowance for doubtful accounts


                        Bal. at Beg.    Charged to      Bad Debts    Bal. at End
               Year      of Period       Expense       Written Off    of Period
               ----     -----------     ----------     -----------   -----------
               1996        $  650        $  468         $ (198)        $  920
               1997        $  920        $  135         $  (32)        $1,023
               1998        $1,023        $ (290)        $  (22)        $  711

                                      -22-



                               EXHIBIT NUMBER 4.2


                AGREEMENT RE. RIGHTS OF HOLDERS OF LONG-TERM DEBT


The Company hereby agrees to furnish to the Securities and Exchange  Commission,
upon request,  a copy of the  instruments  which define the rights of holders of
long-term debt of the Company. None of such instruments not included as exhibits
herein  represents  long-term  debt in excess of 10% of the total  assets of the
Company.



                                  EXHIBIT 10.9

            SECOND AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT
                                 (MULTICURRENCY)

         THIS  SECOND   AMENDMENT  TO  AMENDED  AND  RESTATED  CREDIT  AGREEMENT
(MULTICURRENCY)  (the  "Amendment"),  dated as of December 12, 1997,  is entered
into by and between STANFORD TELECOMMUNICATIONS,  INC. (the "Borrower") and BANK
OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION (the "Bank").

                                    RECITALS

         A. The  Borrower  and the Bank are parties to an Amended  and  Restated
Credit Agreement  (Multicurrency) dated as of December 20, 1995, as amended by a
First Amendment to Amended and Restated Credit Agreement  (Multicurrency)  dated
as of  December 5, 1996 (as so amended,  the  "Credit  Agreement"),  pursuant to
which the Bank has extended certain credit facilities to the Borrower.

         B. The Borrower has requested that the Bank agree to certain amendments
of the Credit Agreement.

         C. The Bank is willing to amend the  Credit  Agreement,  subject to the
terms and conditions of this Amendment.

         NOW, THEREFORE, for valuable consideration, the receipt and adequacy of
which are hereby acknowledged, the parties hereto hereby agree as follows:

         1. Defined Terms.  Unless otherwise  defined herein,  capitalized terms
used  herein  shall have the  meanings,  if any,  assigned to them in the Credit
Agreement.

 2. Amendments to Credit Agreement.

                   (a) Section 1.01 of the Credit  Agreement shall be amended at
 the defined term  "Availability  Period" by amending and restating such defined
 term as follows:

                  "'Availability  Period':  the period commencing on the date of
                  this  Agreement  and ending on the date that is the earlier to
                  occur of (a) December 18, 1998,  and (b) the date on which the
                  Bank's commitment to extend credit hereunder terminates. "

                   (b) Section 1.01 of the Credit  Agreement shall be amended at
 the defined term "Final  Maturity  Date" by amending and restating such defined
 term as follows:

                  "'Final  Maturitv  Date':  (a) in  respect  of  any  Advances,
                  December 18, 1998;
                  (b) in respect of any commercial  letters of credit,  June 18,
                  1999;
                  (c) in respect of any standby letters of credit,  December 17,
                  1999;
                  (d) in respect of any Bank Guaranties, December 17, 1999; and
                  (e) in respect of any acceptances, June 18, 1999."
<PAGE>

         3.  Representations and Warranties.  The Borrower hereby represents and
warrants to the Bank as follows:

                  (a) No  Default  or  Event  of  Default  has  occurred  and is
continuing.

                  (b) That certain  resolution  of the Board of Directors of the
Borrower dated March 28, 1991, which authorizes the credit  facilities  provided
under the Credit  Agreement  remains in full force and  effect.  The  execution,
delivery  and  performance  by the  Borrower  of this  Amendment  have been duly
authorized by all  necessary  corporate and other action and do not and will not
require any registration  with,  consent or approval of, notice to or action by,
any person  (including any governmental  authority) in order to be effective and
enforceable.  The Credit Agreement as amended by this Amendment  constitutes the
legal, valid and binding obligations of the Borrower,  enforceable against it in
accordance with its respective terms, without defense, counterclaim or offset.

                  (c)  All   representations  and  warranties  of  the  Borrower
contained in the Credit Agreement are true and correct.

                  (d) The Borrower is entering into this  Amendment on the basis
of its own investigation and for its own reasons, without reliance upon the Bank
or any other person.

         4. Effective  Date. This Second  Amendment will become  effective as of
the date first above written (the "Effective Date"),  provided that the Bank has
received from the Borrower a duly executed original (or, if elected by the Bank,
an executed facsimile copy) of this Amendment.

         5. Reservation of Rights. The Borrower acknowledges and agrees that the
execution  and  delivery  by the Bank of this  Amendment  shall not be deemed to
create a course of dealing or otherwise  obligate the Bank to forbear or execute
similar amendments under the same or similar circumstances in the future.

         6. Miscellaneous.

                  (a) Except as herein expressly amended,  all terms,  covenants
and  provisions  of the Credit  Agreement are and shall remain in full force and
effect and all  references  therein to such Credit  Agreement  shall  henceforth
refer to the Credit Agreement as amended by this Amendment. This Amendment shall
be deemed incorporated into, and a part of, the Credit Agreement.

                  (b) This  Amendment  shall be  binding  upon and  inure to the
benefit of the parties  hereto and thereto and their  respective  successors and
assigns.  No third party  baneficiaries  are  intended in  connection  with this
Amendment.

                  (c) This  Amendment  shall be  governed  by and  construed  in
accordance with the law of the State of California.
<PAGE>

                  (d)  This   Amendment   may  be  executed  in  any  number  of
counterparts,  each  of  which  shall  be  deemed  an  original,  but  all  such
counterparts together shall constitute but one and the same instrument.  Each of
the parties  hereto  understands  and agrees that this  document  (and any other
document  required  herein) may be delivered by any party thereto  either in the
form  of an  executed  original  or  an  executed  original  sent  by  facsimile
transmission  to be followed  promptly by mailing of a hard copy  original,  and
that receipt by the Bank of a facsimile transmitted document purportedly bearing
the  signature of the Borrower  shall bind the Borrower  with the same force and
effect as the  delivery  of a hard copy  original.  Any  failure  by the Bank to
receive the hard copy executed  original of such document shall not diminish the
binding effect of receipt of the facsimile transmitted executed original of such
document which hard copy page was not received by the Bank.

                  (e)  This  Amendment,  together  with  the  Credit  Agreement,
contains the entire and exclusive agreement of the parties hereto with reference
to the matters discussed herein and therein. This Amendment supersedes all prior
drafts and  communications  with  respect  thereto.  This  Amendment  may not be
amended or mod)fied except in writing executed by both of the parties hereto.

                  (f) If any term or provision of this Amendment shall be deemed
prohibited  by or invalid under any  applicable  law,  such  provision  shall be
invalidated without affecting the remaining  provisions of this Amendment or the
Credit Agreement, respectively.

                  (g) Borrower  covenants to pay to or reimburse the Bank,  upon
demand,  for all reasonable  costs and expenses  (including  allocated  costs of
in-house  counsel)  incurred in connection  with the  development,  preparation,
negotiation, execution and delivery of this Amendment.

                  IN WITNESS  WHEREOF,  the  parties  hereto have  executed  and
delivered this Amendment as of the date first above written.

                                        STANFORD TELECOMMUNICATIONS, INC.


                                        By:      /s/ Jerome F. Klajbor
                                                 ---------------------
                                        Name:    Jerome F. Klajbor
                                        Title:   Chief Financial Officer

                                        BANK OF AMERICA NATIONAL TRUST
                                        AND SAVINGS ASSOCIATION


                                        By:      /s/ Debra G. Staiger
                                                 --------------------
                                        Name:    Debra G. Staiger
                                        Title:   Vice President



         EXHIBIT 10.10
         DEED OF LEASE

         THIS DEED OF LEASE,  dated this 17 day of June,  1997,  by and  between
 Opus East,  L.L.C.,  a Delaware  limited  liability  company,  ("Landlord") and
 Stanford Telecommunications, Inc., a Delaware corporation ("Tenant").

         WITNESSETH:

         That  Landlord,  in  consideration  of the rents and  mutual  covenants
 hereinafter  set forth,  does hereby  lease,  demise and let unto  Tenant,  and
 Tenant does hereby hire and take from  Landlord the  Premises  (as  hereinafter
 defined)  which  includes  all of the  space  located  in the  office  building
 ("Building") to be constructed on the land located in Loudoun County,  Virginia
 described on Exhibit A attached  hereto and  incorporated  herein by reference.
 The Building will be constructed in accordance with the Work Agreement attached
 hereto  as  Exhibit  B. The land  (including  all  easement  areas  appurtenant
 thereto) upon which the Building is located is  hereinafter  referred to as the
 "Property"; the Property and the Building are collectively hereinafter referred
 to as the "Premises";  and the Premises and all buildings and  improvements and
 personal  property  of  Landlord  used in  connection  with  the  operation  or
 maintenance  thereof located  therein and thereon and the  appurtenant  parking
 facilities are hereinafter called the "Office Complex."

         Tenant  hereby  accepts this Lease and the Premises  upon the covenants
 and  conditions  set forth herein and subject to any  encumbrances,  covenants,
 conditions,  restrictions and other matters of record as of the date hereof and
 all applicable zoning,  municipal,  county, state and federal laws,  ordinances
 and regulations governing and regulating the use of the Premises.

         TO HAVE AND TO HOLD THE SAME,  for a "term" of  approximately  ten (10)
 years  commencing  on the  earlier  to occur  of (i)  Final  Completion  of the
 Building (as defined in Exhibit B), or (ii) use and  occupancy by Tenant of any
 portion of the Building,  but in no event prior to June 1, 1998,  and ending on
 the tenth (10) anniversary of the Commencement  Date,  unless sooner terminated
 in the  manner  provided  hereinafter.  The date on which the term of the Lease
 begins is sometimes hereinafter referred to as the "Commencement Date".

         Following the  Commencement  Date,  Landlord  shall deliver to Tenant a
 Commencement Notice which shall contain the exact Commencement Date, the number
 of square  feet of net  rentable  area  contained  in the  Building,  and other
 reasonably  pertinent  date. If Tenant disputes the square footage as set forth
 in the Commencement Notice,  Tenant shall notify Landlord in writing within ten
 (10) days of Landlord's  delivery of the Commencement  Notice.  If Landlord and
 Tenant are unable to resolve the dispute  within twenty (20) days of Landlord's
 delivery of the  Commencement  Notice,  a measurement  shall be made by a third
 party mutually  acceptable to Landlord and Tenant using the method specified in
 Section 16.31 hereof, and the third party's  determination  shall govern.  Upon
 execution of the Commencement  Notice by Landlord and Tenant,  the Commencement
 Notice shall be conclusive and binding on Landlord and Tenant as to all matters
 set forth therein.

         Notwithstanding  anything to the contrary  contained in this Lease,  in
 the event the Commencement Date has not occurred on or before December 1, 1998,
 the terms of paragraph A(l)(c) of the Work Agreement shall govern.

          ARTICLE I

          BASE RENT

          Section 1.1 Base Rent.  In  consideration  of the  leasing  aforesaid,
 Tenant  agrees to pay to  Landlord,  at 6707  Democracy  Boulevard,  Suite 510,
 Bethesda,  Maryland, 20817 or at such other place as Landlord from time to time
 may  designate in writing,  annual rental based on the number of square feet of
 net  rentable  area  contained  in the  Building  as the  same is  measured  in
 accordance with Section 16.31 below multiplied by $14.75 per square foot of net
 rentable area for the duration of the first Lease Year. During the second Lease
 Year (as hereinafter defined) and each Lease Year thereafter during the term of
 this Lease,  the Base Rent shall be  increased  annually by an amount  equal to
 four percent (4%) of the prior Lease Year's Base Rent.

          The aforesaid amount is sometimes hereinafter referred to as the "Base
 Rent,"  and  shall be  payable  monthly,  in  advance,  in  equal  installments
 commencing on the first day of the term and continuing on the first day of each
 and every month thereafter for the next succeeding months during the balance of
 the  term.  If the term  commences  on a date  other  than the  first  day of a
 calendar  month or ends on a date other than the last day of a calendar  month,
 monthly rent for the first month of the term or the last month of the term,  as
 the case may be, shall be prorated based upon the ratio that the number of days
 in the term within such month bears to the total number of days in such month.

<PAGE>

                                    ARTICLE 2
                                 ADDITIONAL RENT

          Section 2.1  Additional  Rent. In addition to the Base Rent payable by
Tenant under the  provisions  of Article 1 hereof,  Tenant shall pay to Landlord
"Additional Rent" as hereinafter  provided for in this Article 2. All sums under
this Article and all other sums and charges  required to be paid by Tenant under
the  Lease  (except  Base  Rent),  however  denoted,  shall  be  cleaned  to  be
"Additional  Rent."  If any such  amounts  or  charges  are not paid at the time
provided in the Lease, they shall nevertheless be collectible as Additional Rent
with the next installment of Base Rent falling due.

          Section  2.2  Definitions.  For the  purposes  of this  Article 2, the
parties hereto agree upon the following Definitions:

          (a) "Days" or days shall mean business  days in accordance  with local
business and governmental observances, unless otherwise specified herein. "Lease
Year" shall mean each twelve (12) month period commencing with and including the
month during which the term of this Lease  commences,  and ending with the month
during  which the term of this Lease  (including  any  extensions  or  renewals)
terminates.

          (b) "Real Estate  Taxes" shall mean and include all personal  property
 taxes of  Landlord  relating to  Landlord's  personal  property  located in the
 Office  Complex  and used in  connection  with the  operation  and  maintenance
 thereof  (however,  if the equipment is shared  between the Office  Complex and
 other projects,  only the proportionate share of taxes applicable to the Office
 Complex shall be included),  real estate taxes, water rates and charges,  sewer
 rates and  charges,  charges  for public  utilities,  street  lighting,  excise
 levies,   licenses,   permits,   inspection   fees,   installments  of  special
 assessments,  including  interest thereon,  relating to the Property and Office
 Complex, and all other governmental charges, general and special,  ordinary and
 extraordinary,  foreseen  as  well  as  unforeseen,  of  any  kind  and  nature
 whatsoever,  or other tax,  however  described,  which is levied or assessed in
 substitution  for any of the  foregoing by the United  States of America or the
 state in which the  Office  Complex is  located  or any  political  subdivision
 thereof,  against  Landlord  or all or any part of the Of Office  Complex  as a
 result of Landlord's  ownership of the Property or Office Complex,  and payable
 during the  respective  Lease  Year.  It shall not  include any net income tax,
 estate tax, or inheritance tax. Tenant shall be solely responsible for all Real
 Estate Taxes.

          (c) In the event Landlord accepts responsibility for the operation and
 maintenance of the Office Complex pursuant to Section 5.7 of this Lease, Tenant
 shall reimburse Landlord for all Operating Expenses. "Operating Expenses" shall
 mean and include all  expenses  incurred  with respect to the  maintenance  and
 operation  of the  Property  and Office  Complex as  determined  by  Landlord's
 accountant  in  accordance  with  generally  accepted   accounting   principles
 consistently  followed,  including,  but not  limited to,  insurance  premiums,
 maintenance and repair costs, steam,  electricity,  water, sewer, gas and other
 utility charges, fuel, lighting, window washing, janitorial services, trash and
 rubbish  removal,  wages  payable to  employees  of Landlord  whose  duties are
 connected with the operation and maintenance of the Property and Office Complex
 (but only for the  portion  of their  time  allocable  to work  related  to the
 Property and Office Complex), amounts paid to contractors or subcontractors for
 work or services  performed in connection with the operation and maintenance of
 the  Property  and  Office  Complex   including  air  quality   monitoring  and
 remediation  efforts,  all costs of uniforms,  supplies and  materials  used in
 connection  with the  operation  and  maintenance  of the  Property  and Office
 Complex, all payroll taxes,  unemployment insurance costs, vacation allowances,
 and the cost of providing  disability insurance or benefits,  pensions,  profit
 sharing  benefits,  hospitalization,   retirement  or  other  so-called  fringe
 benefits to  employees  below the level of building  manager  (but only for the
 portion of their time  allocable  to work related to the Property and Of Office
 Complex),  and any other  expense  imposed  on  Landlord,  its  contractors  or
 subcontractors,  pursuant  to law or  pursuant  to  any  collective  bargaining
 agreement   covering  such   employees,   all  services,   supplies,   repairs,
 replacements  or other expenses for  maintaining and operating the Property and
 Office Complex,  reasonable attorneys' fees and costs in connection with appeal
 or contest of real estate or other taxes or levies,  and such other expenses as
 may be ordinarily  incurred in the operation  and  maintenance  of an of Office
 complex in Loudoun  County and not  specifically  set forth  herein,  including
 reasonable  management  fees. The term "Operating  Expenses" shall also include
 capital  improvements  to the Office  Complex,  and  replacements  required for
 normal  maintenance and repair, and expenses incurred by Landlord in connection
 with  sidewalks  adjacent to the Property  and any  pedestrian  walkway  system
 (either above or below ground) or other public facility  required by applicable
 law to which  Landlord or the Of Office Complex is from time to time subject in
 connection with operations of the Property and Office Complex.  Tenant shall be
 solely responsible for all Operating Expenses.

          "Operating  Expenses"  shall not include Real Estate  Taxes,  repairs,
 restoration  or other  work  occasioned  by fire,  windstorm  or other  insured
 casualty,  or occasioned by condemnation;  leasing commissions;  legal expenses
 incident to  enforcement  by Landlord of the terms of any existing or potential
 lease;  interest or principal payments on any mortgage or

<PAGE>

other  indebtedness  of Landlord;  payment under any ground lease;  compensation
paid to any employee of Landlord at or above the grade of building manager;  any
depreciation  allowance or expense;  capital expenditures required by Landlord's
failure to comply with Legal  Requirements  (as defined in the Work  Agreement);
overtime  expenses to Landlord due to Landlord's  defaults  hereunder;  any cost
representing  an amount  paid for first class  services  and/or  materials  to a
related  person,  firm,  or entity to the extent such amount  exceeds the amount
that would be paid for such first class  services  and/or  materials at the then
existing  market rates to an unrelated  person,  firm or entity;  costs directly
resulting  from the gross  negligence or misconduct of Landlord,  its employees,
agents or contractors; costs or fees relating to the defense of Landlord's title
or interest in the Property; costs and expenses incurred by Landlord in forming,
operating or maintaining the ownership  entity for the Premises  including legal
fees incurred in connection therewith; or costs or expenses incurred by Landlord
in financing, refinancing, pledging, selling, granting or otherwise transferring
or encumbering ownership rights in the Premises.  Any costs incurred by Landlord
in connection with its construction  guaranty  referenced in the Work Agreement,
or in connection  with repairing any latent  defects  discovered in the Building
during the first  twelve (12)  months of the term  shall also be  excluded  from
"Operating Expenses".  All items contracted for and paid directly by Tenant that
would  otherwise  be  included  within  the term,  Operating  Expenses  shall be
excluded from such definition.  In no event shall the Operating  Expenses billed
to Tenant exceed one hundred  percent ( 100%) of the costs  incurred by Landlord
for same.

          Notwithstanding the foregoing provisions of this Section 2.2, prior to
 or on the Commencement Date, Tenant shall secure all utilities for the Premises
 in  Tenant's  name and for  Tenant's  account.  During the term of this  Lease,
 Tenant will pay, when due, all charges of every nature, kind or description for
 such  utilities  furnished to the Premises or chargeable  against the Premises,
 including  all  charges  for  water,   sewage,   heat,  gas,  light,   garbage,
 electricity,  telephone,  steam,  power,  or other  public or  private  utility
 services.  Prior to the Commencement  Date, Tenant shall reimburse Landlord for
 all  utilities or services at the Premises  used  directly and  exclusively  by
 Tenant or its agents, employees or contractors.

          In the event that any charge or fee is required after the Commencement
 Date by the  state  in  which  the  Premises  are  located,  or by any  agency,
 subdivision,  or instrumentality  thereof, or by any utility company furnishing
 services or utilities to the Premises,  as a condition  precedent to furnishing
 or continuing to furnish utilities or services to the Premises,  such charge or
 fee shall be deemed to be a utility charge payable by Tenant. The provisions of
 this Section 2.2 shall include,  but not be limited to, any charges or fees for
 present or future water or sewer  capacity to serve the  Premises,  any charges
 for the underground  installation  of gas or other  utilities or services,  and
 other  charges  relating  to the  extension  of or  change  in  the  facilities
 necessary to provide the Premises with  adequate  utility  services,  but shall
 specifically  exclude any charges levied to satisfy proffered conditions as set
 forth in the proffers  applicable to the Office  Complex dated August 10, 1988,
 and the Summary  dated  November,  1994,  copies of which have been provided to
 Tenant.  In the event that  Landlord  has paid any such charge or fee after the
 date hereof, Tenant shall reimburse Landlord for such utility charge.

          Section 2.3 Applicability of Certain Sections.  The following Sections
 2.4 through and including Section 2.9 of this Lease shall only be applicable to
 those periods of time during which Landlord is responsible  for the maintenance
 and  operation  of the Office  Complex  pursuant  to the teens of  Section  5.7
 hereof.

          Section 2.4  Estimated  Operating  Expenses  for  Initial  Lease Year.
 Intentionally Deleted.

          Section 2.5  Estimated  Expenses.  Landlord  shall  estimate the total
 amount of Operating  Expenses  for the coming  twelve (12) month  period.  Said
 estimate  shall be in writing and shall be delivered or mailed to Tenant at the
 Premises after delivery of the Assumption Certificate referenced in Section 5.7
 below.

          Section 2.6 Payment of Additional Rent Tenant shall pay, as Additional
 Rent,  Operating  Expenses,  so estimated,  in equal monthly  installments,  in
 advance,  on the first day of each month  during  each  applicable  twelve (12)
 month period ("Cycle"). If for any reason Landlord has not provided Tenant with
 Landlord's  estimate of Operating  Expenses  prior to the  commencement  of any
 Cycle,  then Tenant shall continue to pay in accordance  with the prior Cycle's
 estimate until it receives Landlord's estimate of same. Within thirty (30) days
 of receipt of the Operating Expense estimate,  Tenant shall pay to Landlord all
 amounts due for the then current Cycle, and during the remainder of such Cycle,
 Tenant  shall  pay to  Landlord  an amount  equal to  one-twelfth  (1/12th)  of
 Tenant's Expenses as noted on Landlord's estimate.

          Section  2.7  Re-estimates  of Taxes and  Expenses.  From time to time
 during any applicable Cycle, but not more than one (1) time per Cycle, Landlord
 may  re-estimate the amount of Operating  Expenses,  and in such event Landlord
 shall notify Tenant,  in writing,  of such  re-estimate in the manner above set
 forth and fix monthly installments for the then remaining

<PAGE>

 balance of such Cycle in an amount  sufficient to pay the  re-estimated  amount
 over the balance of such Cycle after giving  credit for payments made by Tenant
 on the previous estimate.

          Section 2.8  Adjustment of Actual  Expenses.  Upon  completion of each
 Cycle,  Landlord shall cause its  accountants to determine the actual amount of
 Operating  Expenses for such Cycle and deliver a written  certification  of the
 amounts  thereof to Tenant within ninety (90) days after the end of each Cycle.
 If Tenant  has paid less than the  actual  Operating  Expenses  for any  Cycle,
 Tenant shall pay such deficiency  within thirty (30) days after receipt of such
 statement.  If Tenant has paid more than the actual Operating  Expenses for any
 Cycle,  Landlord shall, at Tenant's option,  either (a) refund such excess,  or
 (b)  credit  such  excess  against  the most  current  monthly  installment  or
 installments  due Landlord for its estimate of Operating  Expenses for the next
 following Cycle. If Tenant's  overpayment is greater than the equivalent of one
 month of  Operating  Expenses,  Landlord  shall  refund  the  excess  to Tenant
 together with interest thereon at the Default Rate. A pro rata adjustment shall
 be made for a fractional  Cycle occurring  during the term of this Lease or any
 renewal or extension  thereof based upon the number of days of the term of this
 Lease during said Cycle as compared to three hundred  sixty-five (365) days and
 all additional  sums payable by Tenant or credits due Tenant as a result of the
 provisions of this Article 2 shall be adjusted accordingly.

          Section  2.9  Tenant  Audit  Rights.  Tenant  shall  have the right to
examine and audit Landlord's annual statement of Operating Expenses as presented
in  Landlord's   statement.   Tenant  shall  commence  its  examination  and  if
applicable,  its audit within  forty-five  (45) days after receipt of the annual
statement, shall perform its examination and audit with diligence and continuity
and shall  complete its  examination  and audit within one hundred  twenty (120)
days after receipt of the annual statement. The cost of any such examination and
audit shall be paid by Tenant,  except that, if it is determined on the basis of
such audit (or if, in accordance with the following provisions,  it is otherwise
ultimately  determined)  that the amount of Tenant's  obligations  for Operating
Expanses for any calendar  year was  overstated by more than three percent (3%),
then the reasonable cost of the audit shall be paid by Landlord.  Landlord shall
refund to Tenant any overpayment for the calendar year in question within thirty
(30) days after the amount of the overpayment has been  established by the audit
or as  provided in this  subsection.  If Tenant  fails to exercise  its right of
audit within the forty-five (45) day period, the amount of Tenant's  obligations
for Operating Expenses shall be conclusively established as the amount set forth
in the annual  statement  delivered by Landlord to Tenant.  If, however,  Tenant
timely  exercises  its right of audit,  the amount of Tenant's  obligations  for
Operating Expenses shall be conclusively established as the amount determined as
a result of such audit unless,  within sixty (60) days after receipt of a report
of the same from the independent auditors selected by Tenant,  Landlord,  at its
expense,  shall  contest  the amount  thereof,  in which event  Tenant  shall be
entitled  to pursue  any legal  remedies  it may have to finally  ascertain  the
amount thereof and, if appropriate, a refund on account thereof.

          Section  2.10  Taxes  and  Other  Additional  Rent.  Beginning  on the
 Commencement Date and continuing throughout the Term of the Lease, Tenant shall
 be  responsible  for all Real Estate  Taxes.  Tenant  shall pay all amounts due
 within thirty (30) days of receipt of written request and an invoice  therefor,
 including a copy of the tax bill.  If by law any special  assessment is payable
 (without default) in installments  (whether or not interest shall accrue on the
 unpaid balance of such special assessment),  and if Landlord elects to pay same
 in  installments,  Tenant  shall pay all amounts due in  connection  therewith,
 together with any interest accrued,  in installments within thirty (30) days of
 receipt of Landlord's  written request and invoice therefor.  Landlord shall be
 responsible for all  installments of special  assessments  (including  interest
 accrued on the unpaid balance) which are payable prior to the Commencement Date
 and after the termination date of the term of this Lease.

          Further, Tenant shall pay, also as Additional Rent, all other sums and
 charges  required to be paid by Tenant under this Lease,  and any tax or excise
 on rents, gross receipts tax, or other tax, however described,  which is levied
 or  assessed  by the United  States of America or the state in which the Office
 Complex is located or any political  subdivision  thereof,  against Landlord in
 respect to the Base Rent, Additional Rent, or other charges reserved under this
 Lease or as a result  of  Landlord's  receipt  of such  rents or other  charges
 accruing under this Lease but only to the extent such levy, tax,  assessment or
 charge  on rent  shall  be  expressly  in lieu  of or in  substitution  for any
 existing Real Estate Taxes; provided,  however, Tenant shall have no obligation
 to pay net income taxes of Landlord.

          Section 2.11 Tenant's Right to Contest Real Estate Taxes. Tenant shall
 have the right at its own expense to contest the amount or validity in whole or
 in  part,  of any  Real  Estate  Taxes by  appropriate  proceedings  diligently
 conducted  in good faith,  but only after  payment of such Real  Estate  Taxes,
 unless such payment, or a payment thereof under protest, would operate as a bar
 to such contest or interfere  materially with the prosecution thereof, in which
 event,  notwithstanding  the  provisions  of Article 2, Tenant may  postpone or
 defer  payment of such Real Estate  Taxes if (a) neither the  Premises  nor any
 portion  thereof  would,  by reason of such  postponement  or deferment,  be in
 danger of being  forfeited or lost,  and (b) Tenant shall have  deposited  with
 Landlord  cash or a letter of credit  payable to Landlord  issued by a national
 bank or

<PAGE>

 federal savings and loan  association in the amount of the Real Estate Taxes so
 contested and unpaid. If, during the continuance of such proceedings,  Landlord
 shall, from time to time,  reasonably deem the amount deposited,  as aforesaid,
 insufficient,  Tenant shall, upon demand of Landlord,  make additional deposits
 of such additional sums of money or such additional  certificates of deposit as
 Landlord may reasonably request. Upon failure of Tenant to make such additional
 deposits  within  thirty (30) days,  the amount  theretofore  deposited  may be
 applied by Landlord to the payment,  removal and  discharge of such Real Estate
 Taxes, and the interest,  fines and penalties in connection therewith,  and any
 reasonable  costs,  fees  (including  reasonable  attorney's  fees)  and  other
 liability (including costs incurred by Landlord, but excluding consequential or
 punitive damages) accruing in any such proceedings. Upon the termination of any
 such proceedings, Tenant shall pay the amount of such Real Estate Taxes or part
 thereof,  if any, as finally  determined  in such  proceedings,  the payment of
 which  may have been  deferred  during  the  prosecution  of such  proceedings,
 together with any  reasonable  costs,  fees  (including  reasonable  attorney's
 fees), interest,  penalties, fines and other liability in connection therewith,
 and upon such payment Landlord shall return all amounts  deposited with it with
 respect to the  contest of such Real Estate  Taxes,  as  aforesaid,  or, at the
 written direction of Tenant,  Landlord shall make such payment out of the funds
 on deposit with Landlord and the balance, if any, shall be resumed to Tenant.

          Tenant  shall be  entitled  to the  refund of any Real  Estate  Taxes,
 penalty,  fine and interest thereon received by Landlord which has been paid by
 Tenant or which  has been paid by  Landlord  but for  which  Landlord  has been
 previously  reimbursed in full by Tenant,  such amount to be paid within thirty
 (30) days of receipt by Landlord. Landlord shall not be required to join in any
 proceedings  referred to in this Section 2.11 unless the provisions of any law,
 rule or regulation at the time in effect shall require that such proceedings be
 brought by or in the name of Landlord,  in which event  Landlord  shall join in
 such  proceedings  or permit  the same to be brought  in  Landlord's  name upon
 compliance  with such conditions as Landlord may reasonably  require.  Landlord
 shall not  ultimately  be subject to any liability for the payment of any fees,
 including   attorney's  fees,  costs  and  expenses  in  connection  with  such
 proceedings.   Tenant  agrees  to  pay  all  such  fees  (including  reasonable
 attorney's fees),  costs and expenses or, on demand,  to make  reimbursement to
 Landlord for such  payment.  During the time when any such amount is on deposit
 with  Landlord,  and prior to the time when the same is  returned  to Tenant or
 applied  against the payment,  removal or discharge  of Real Estate  Taxes,  as
 above provided,  Tenant shall be entitled to receive all interest paid thereon,
 if any.  Landlord agrees to cooperate with Tenant's  efforts in connection with
 this Section 2.11, at no cost or expense to Landlord.

          Section  2.12  Landlord's  Right to  Contest  Real  Estate  Taxes.  In
addition  to the right of Tenant  under  Section  2.11 to contest  the amount or
validity of Real  Estate  Taxes,  Landlord  shall also have the right to contest
same; provided however,  Landlord shall first give Tenant written notice of such
intention  and Tenant  shall have twenty  (20) days from the date of  Landlord's
notice within which to give Landlord written notice that Tenant will contest the
Real Estate Taxes, and to thereafter  diligently pursue same. Landlord shall not
be  obligated  to contest Real Estate  Taxes,  and any such contest  shall be by
appropriate  proceedings  conducted  in the name of  Landlord  or in the name of
Landlord and Tenant.  If Landlord  elects to contest the amount or validity,  in
whole or in part, of any Real Estate Taxes,  such contests by Landlord  shall be
at Landlord's expense, provided,  however, that if the amounts payable by Tenant
for Real Estate Taxes are reduced (or if a proposed  increase in such amounts is
avoided or reduced) by reason of Landlord's contest of Real Estate Taxes, Tenant
shall  reimburse  Landlord  for costs  incurred by Landlord in  contesting  Real
Estate Taxes, but such reimbursements shall not be in excess of the amount saved
by Tenant by reason of Landlord's  actions in contesting such Real Estate Taxes.
If Real  Estate  Taxes  are  retroactively  increased  following  a  contest  by
Landlord, Tenant shall not be responsible for such incremental increase.

          Section 2.13 Evidence of Payment. Landlord covenants to furnish Tenant
 written  evidence of the payment of any Real Estate Taxes (i.e. paid tax bills)
 for which Tenant has already paid Landlord.

          Section 2.14 Escrow for Taxes and Assessments.  At Landlord's  written
 demand  after any Event of Default  and for as long as such Event of Default is
 uncured,  Tenant  shall pay to Landlord  the known  yearly  Real  Estate  Taxes
 assessments  and other  impositions  payable  with  respect to the Property and
 Office  Complex in monthly  payments  equal to  one-twelfth of the known yearly
 Real Estate Taxes,  assessments and other impositions next payable with respect
 to the Property  and Office  Complex.  If the total  monthly  payments  made by
 Tenant  pursuant  to this  Section  2.14 shall  exceed  the amount of  payments
 necessary  for said  Real  Estate  Taxes,  such  excess  shall be  credited  on
 subsequent monthly payments of the same nature or, at Tenant's option, promptly
 refunded,  but if the  total  of  such  monthly  payments  so made  under  this
 paragraph  shall be  insufficient  to pay such Real Estate Taxes when due, then
 Tenant  shall pay to Landlord  such amount as may be  necessary  to make up the
 deficiency.  Payment by Tenant of Real Estate Taxes under this section shall be
 considered as  performance of such  obligation  under the provisions of Section
 2.14 hereof.

<PAGE>

                                    ARTICLE 3
                            BASE AND ADDITIONAL RENT

          Section  3.1  Interest  and  Late  Fee on Past  Due  Obligations.  Any
 installment  of Base  Rent,  Additional  Rent,  or other  charges to be paid by
 Tenant  accruing  under the  provisions  of this Lease  which shall not be paid
 within  ten (10) days of the date when due,  shall  bear  interest  at the rate
 ("Default Rate") of fifteen percent (15%) per annum from the date when the same
 is due  until the same  shall be paid,  but if such rate  exceeds  the  maximum
 interest rate  permitted by law, such rate shall be reduced to the highest rate
 allowed by law under the circumstances.  In addition,  any installments of Base
 Rent or  Additional  Rent or any other  charges  payable  by  Tenant  under the
 provisions  hereof which shall not be paid when due and which remain unpaid ten
 (10) days  thereafter  shall be subject to a late  payment fee of five  percent
 (5%) of the unpaid amount.

          Section 3.2 Rent Independent.  Except as otherwise expressly set forth
 herein,  Tenant's  covenants to pay the Base Rent and the  Additional  Rent are
 independent of any other  covenant,  condition,  provision or agreement  herein
 contained, and nothing herein contained shall be deemed to suspend or delay the
 payment of any amount of money or charge at the time the same  becomes  due and
 payable  hereunder,  or limit  any  other  remedy  of  Landlord.  Base Rent and
 Additional  Rent are sometimes  collectively  referred to as "Rent."  Except as
 otherwise  expressly  set forth in this  Lease,  Rent shall be payable  without
 deduction,  offset,  prior  notice or  demand,  in lawful  money of the  United
 States.

          Section 3.3 Security Deposit. Intentionally Deleted.

                                    ARTICLE 4
                             POSSESSION OF PREMISES

          Section 4.1 Delayed or Earlier Possession. If Landlord shall be unable
 to give possession of the Premises on the date of the  commencement of the term
 because the construction of the Building has not been sufficiently completed to
 make the Premises  ready for occupancy or for any other reason,  Landlord shall
 not be subject to any claims,  damages or  liabilities  for the failure to give
 possession on said date except as set forth in the Work  Agreement.  Under said
 circumstances,  the rent  reserved and Tenant's  covenant to pay same shall not
 commence  until  possession  of the Premises is given or the Premises are ready
 for occupancy,  whichever is earlier. Failure to give possession on the date of
 commencement  of the term shall in no way affect the  validity of this Lease or
 the obligations of Tenant hereunder, nor shall the same be construed in any way
 to  extend  the  expiration  date of the term.  If Tenant is given and  accepts
 possession of the Premises or a portion thereof on a date earlier than the date
 above  specified for  commencement of the term the rent reserved herein and all
 covenants,  agreements and obligations  herein and the term of this Lease shall
 commence on the date that possession is given to Tenant.

          Section 4.2 Effect of Possession. Intentionally Deleted.

          Section 4.3 Permitted  Use. The Premises shall be occupied and used by
 Tenant for general of Office purposes, including, but not limited to, research,
 development and testing of communications  equipment, and for no other purpose,
 subject to the covenants and agreements hereinafter contained. Tenant shall not
 use or permit the Premises to be used for any other  purpose  without the prior
 written consent of Landlord.

          Section 4.4 Tenant's  Compliance With Environmental Laws. Tenant shall
 at all times and in all respects comply with all federal, state and local laws,
 ordinances  and  regulations  ("Hazardous  Materials  Laws")  relating  to  the
 industrial hygiene,  environmental protection or the use, analysis, generation,
 manufacture,   storage,  presence,  disposal  or  transportation  of  any  oil,
 petroleum  products,   flammable  explosives,   asbestos,   urea  formaldehyde,
 polychlorinated biphenyls,  radioactive materials or waste, or other hazardous,
 toxic,  contaminated or polluting  materials,  substances or wastes,  including
 without limitation any "hazardous  substances,"  "hazardous wastes," "hazardous
 materials" or "toxic substances" under any such laws, ordinances or regulations
 (collectively,  "Hazardous Materials"). The foregoing shall not be construed to
 prohibit  Tenant from  storing and using  reasonable  quantities  of  customary
 office and cleaning  supplies in the Building as  contemplated by the permitted
 use contained in Section 4.3 above.

         Tenant shall at its own expense procure,  maintain in effect and comply
 with all conditions of any and all permits, licenses and other governmental and
 regulatory  approvals  required  for  Tenant's  use of the  Premises and Office
 Complex including,  without  limitation,  discharge of (appropriately  treated)
 materials  or waste into or through  any  sanitary  sewer  system  serving  the
 Premises and Office  Complex.  Except as discharged  into the sanitary sewer in
 strict accordance 1and conformity with all applicable Hazardous Materials Laws,
 Tenant  shall  cause any and all  Hazardous  Materials  to be removed  from the
 Premises and Office Complex and transported  solely by duly licensed haulers to
 duly licensed  facilities for final  disposal of such  Hazardous  Materials and
 wastes.  Tenant shall in all respects,  handle, treat, deal with and manage

<PAGE>

 any and all Hazardous  Materials in, on, under or about the Premises and Office
 Complex in complete conformity with all applicable Hazardous Materials Laws and
 prudent  industry   practices   regarding  the  management  of  such  Hazardous
 Materials.  All  reporting  obligations  to the extent  imposed  upon Tenant by
 Hazardous  Materials  Laws  are  solely  the  responsibility  of  Tenant.  Upon
 expiration  or  earlier  termination  of this  Lease,  Tenant  shall  cause all
 Hazardous  Materials  (except  to  the  extent  such  Hazardous  Materials  are
 generated,  stored,  released  or  disposed of during the term of this Lease by
 Landlord) to be removed from the Premises and Of Office Complex and transported
 for  use,  storage  or  disposal  in  accordance  and in  compliance  with  all
 applicable  Hazardous Materials Laws. Tenant shall not take any remedial action
 in response to the presence of any  Hazardous  Materials in, on, about or under
 the Premises,  the Building, the Office Complex or the Property, nor enter into
 any settlement agreement, consent, decree or other compromise in respect to any
 claims relating to any way connected with the foregoing without first notifying
 Landlord  of  Tenant's   intention  to  do  so  and  affording  Landlord  ample
 opportunity to appear,  intervene or otherwise appropriately assert and protect
 Landlord's  interest with respect thereto.  In addition,  at Landlord's written
 request,  at the expiration of the term of this Lease or within sixty (60) days
 following the date of such request, whichever is later, Tenant shall remove all
 tanks or fixtures  which were placed on the Premises and Office  Complex during
 the term of this Lease and which contain,  or are contaminated with,  Hazardous
 Materials.  Tenant  shall  immediately  notify  Landlord  in writing  of(a) any
 enforcement,  clean-up,  removal or other  governmental  or  regulatory  action
 instituted,  completed or threatened  pursuant to any Hazardous Materials Laws;
 (b) any  claim  made or  threatened  by any  person  against  Landlord,  or the
 Premises  or  the  Office  Complex,  relating  to  damage,  contribution,  cost
 recovery, compensation, loss or injury resulting from or claimed to result from
 any Hazardous  Materials;  and (c) any reports made to any environmental agency
 arising out of or in connection  with any  Hazardous  Materials in, on or about
 the  Premises  or the Of  Office  Complex,  or with  respect  to any  Hazardous
 Materials  removed  from the  Premises or the Office  Complex,  including,  any
 complaints,  notices,  warnings,  reports or asserted  violations in connection
 therewith.  Tenant shall also provide to Landlord, as promptly as possible, and
 in any event within five (5) business days after Tenant first receives or sends
 the same,  copies of all  claims,  reports,  complaints,  notices,  warnings or
 asserted violations relating in any way to the Hazardous Materials in or on the
 Of Office  Complex or  Premises.  Upon  written  request of Landlord (to enable
 Landlord  to defend  itself from any claim or charge  related to any  Hazardous
 Materials Law),  Tenant shall promptly deliver to Landlord notices of hazardous
 waste manifests  reflecting the legal and proper disposal of all such Hazardous
 Materials  removed or to be removed  from the Premises or Office  Complex.  All
 such manifests shall list the Tenant or its agent as a responsible party and in
 no way shall  attribute  responsibility  for any such  Hazardous  Materials  to
 Landlord.  Section 4.5 Landlord's  Compliance with Environmental Laws. Landlord
 covenants not to bring onto the Office Complex or into the Building,  or common
 areas, any Hazardous Materials, as that term is defined herein. Notwithstanding
 the foregoing,  Tenant  recognizes and acknowledges that Landlord or its agents
 may use and store within the Building reasonable quantities of customary office
 and cleaning supplies;  provided such items are stored, used and disposed of in
 accordance with applicable federal, state or local law.

                                    ARTICLE 5
                            SERVICES AND MAINTENANCE

          Section 5.1 Property  Management  Services.  The party responsible for
 the  maintenance  and operation of the Building and Office Complex  pursuant to
 Section 5.7 hereof shall provide the following  services on all days  excepting
 Saturdays, Sundays, holidays, and as otherwise stated in this Section 5.1:

          (a) Janitorial Service. Janitorial and CHAR services for the Building.

          (b) Parking  Facilities  and  Landscaped  Areas.  Maintenance  in good
 order,  condition  and  repair  and  appropriate  illumination  of the  parking
 facilities and all driveways leading thereto and keeping the same free from any
 unreasonable  accumulation  of snow.  Maintenance  of the  landscaped  area and
 parking facilities in a neat, safe and orderly condition.

          (c) Heating and Air  Conditioning.  Heating  and air  conditioning  in
 amounts  and  ranges  required  by  Tenant's  Plans  (as  defined  in the  Work
 Agreement)  during  regular  business  hours as the same are set by Tenant from
 time to time.  If Landlord is serving as property  manager  pursuant to Section
 5.7, then (i) except in the case of an emergency,  Landlord will give Tenant at
 least five (5) business days prior notice if Landlord  intends to interrupt any
 of the services required to be furnished by Landlord,  and (ii) provided Tenant
 gives  Landlord  notice of its need for  overtime  HVAC service  during  normal
 business  hours,  Landlord  shall provide such service and Tenant shall only be
 responsible for the actual utility costs relating to such overtime service.

          Section 5.2 Tenant's Utility Services.  During the term of this Lease,
 Tenant will pay, when due, all charges of every nature, kind or description for
 utilities  furnished to the Premises  including all charges for water,  sewage,
 heat, gas, light,  garbage,  electricity,  telephone,  power or other public or
 private utility services.  Prior to the Commencement Date, Tenant shall pay for
 all

<PAGE>

 utilities or services at the Premises  directly and exclusively  used by Tenant
 or its agents, employees or contractors.

          Section  5.3 Other  Provisions  Relating to  Services.  If Landlord is
 serving as property  manager  pursuant  to Section  5.7  hereof,  (i) except as
 specifically  provided in this  Section 5.3, no  interruption  in, or temporary
 stoppage  of,  any of the  aforesaid  services  caused  by  repairs,  renewals,
 improvements,  alterations,  strikes,  lockouts, labor controversy,  accidents,
 inability  to obtain fuel or  supplies,  or other  Unavoidable  Delays shall be
 deemed an eviction or  disturbance  of Tenant's use and  possession,  or render
 Landlord  liable for  damages,  by  abatement  of rent or  otherwise or relieve
 Tenant from any obligation herein set forth; (ii) in no event shall Landlord be
 required  to provide  any service in excess of that  permitted  by  involuntary
 guidelines or laws, ordinances or regulations of governmental authority;  (iii)
 Landlord  shall  have the  right,  from time to time,  to make  reasonable  and
 non-discriminatory  modifications  to the  standards for utilities and services
 set forth in this  Article 5 upon  providing  not less than  thirty  (30) days'
 notice to Tenant;  and (iv) if utility services to the Premises are interrupted
 for more than five (5)  consecutive  business  days for any  reason  other than
 Unavoidable  Delay and, as a result  thereof,  Tenant  ceases  operating at the
 Premises,  Rent  shall  abate on a daily  basis  beginning  on the sixth  (6th)
 consecutive business day and continuing until services are restored.

          Section  5.4  Effects on  Utilities.  Tenant  shall not  connect  with
 electric current or water pipes,  except through  existing  electrical or water
 outlets  already in the  Premises,  any apparatus or device for the purposes of
 using electric current or water.

          Section 5.5 Park Dues.  Tenant  acknowledges that the Property is part
 of a larger  development  and that  certain dues or  assessments  are owed on a
 regular  periodic  basis for  additional  services or  maintenance  pursuant to
 covenants, conditions and restrictions of record. Tenant will pay all such dues
 attributable to the Property as Additional Rent, or directly, if possible.

          Section 5.6 Maintenance. Intentionally Deleted.

          Section 5.7 Property Manager. Notwithstanding anything to the contrary
 contained  herein,  Tenant shall be  responsible  for all  property  management
 functions  referenced in this Lease or otherwise  required to keep and maintain
 the  Building  and Office  Complex in good order and repair  consistent  with a
 first  class  office  building in Loudoun  County,  Virginia.  The  maintenance
 responsibilities  contained  in  Article  9 of this  Lease  shall not be deemed
 "property  management"  functions,  and  Landlord  and  Tenant  shall  each  be
 responsible  for their  respective  obligations  as set  forth in such  Article
 without regard to which party is serving as the property manager.

          At any time  during  the  Term,  Tenant  may,  by  written  notice  to
 Landlord,  request that Landlord assume all such property management functions.
 If Landlord  desires to assume the role of  property  manager,  Landlord  shall
 respond  affirmatively in writing to Tenant within firemen (15) days of receipt
 of Tenant's  written request,  whereupon  Landlord shall execute and deliver to
 Tenant an Assumption of Property Management Services  Certificate  ("Assumption
 Certificate") prepared by Landlord in form and content reasonably  satisfactory
 to Tenant.  Such assumption  shall be effective as of the date specified in the
 Assumption  Certificate,  and shall  continue in effect for twelve (12) months,
 unless a longer period is agreed to by Landlord and Tenant. Notwithstanding the
 foregoing, Landlord's obligation to provide the services and perform the duties
 of the property  manager shall be subject to Tenant's payment for same pursuant
 to Article 2 hereof.

                                    ARTICLE 6
                                    INSURANCE

          Section 6.1 Landlord's Casualty Insurance Obligations.  Landlord shall
 keep the Office Complex insured in an amount equivalent to the full replacement
 value thereof (excluding foundation, grading and excavation costs) against:

          (a)  loss or damage by fire; and

          (b) such other risk or risks of a similar or dissimilar  nature as are
 now or may be  customarily  covered with respect to buildings and  improvements
 similar in construction,  general  location,  use,  occupancy and design to the
 Office  Complex,   including,  but  without  limiting  the  generality  of  the
 foregoing,  windstorms, hail, explosion,  vandalism,  malicious mischief, civil
 commotion,  and such other  coverage  as may be deemed  necessary  by  Landlord
 including rental interruption  insurance,  provided such additional coverage is
 obtainable  and provided  such  additional  coverage is such as is  customarily
 carried with respect to buildings  and  improvements  similar in  construction,
 general  location,  use,  occupancy  and  design  to the  Office  Complex.  The
 foregoing insurance shall be on an agreed value basis.

<PAGE>

          These insurance  provisions shall in no way limit or modify any of the
obligations  of Tenant under any provision of this Lease.  Landlord  agrees that
such policy or policies of  insurance  shall  permit  releases of  liability  as
provided  herein and/or waiver of subrogation  clause in favor of Tenant so long
as such  release/waiver is available at a commercially  reasonable rate. Subject
to the  foregoing,  Landlord  waives,  releases and  discharges  Tenant from all
claims or demands  whatsoever  which Landlord may have or acquire arising out of
damage  to or  destruction  of the Of  Office  Complex  or loss  of use  thereof
occasioned by fire or other casualty, which claim or demand may arise because of
the negligence or fault of Tenant, its agents, employees,  customers or business
invitees,  or otherwise,  and Landlord agrees to look to the insurance  coverage
only in the event of such loss.  Notwithstanding the foregoing,  Tenant shall be
obligated  to pay the rental  called for  hereunder in the event of damage to or
destruction  of  the  Premises  or the Of  Office  Complex  if  such  damage  or
destruction  is occasioned by the  negligence or fault of Tenant,  its agents or
employees, such fault to be established by arbitration or a judicial proceeding.

          Section 6.2 Tenant's Casualty Insurance Obligations. Tenant shall keep
 all of its improvements, betterments, machinery, equipment, furniture, fixtures
 and  personal  property  which may be located in,  upon,  or about the Premises
 insured  for the  benefit  of Tenant  (and  naming  Landlord  as an  additional
 insured) in an amount equivalent to the full insurable value thereof against:

          (a)  loss or damage by fire; and

          (b) such other risk or risks of a similar or dissimilar  nature as are
 now, or may in the future be,  customarily  covered  with respect to a tenant's
 machinery,  equipment,  furniture,  fixtures,  personal  property  and business
 located in a building similar in construction, general location, use, occupancy
 and  design  to  the  Office  Complex,  including,  but  without  limiting  the
 generality of the foregoing,  windstorms,  hail, explosions,  vandalism, theft,
 malicious mischief, civil commotion, and such other coverage as Tenant may deem
 appropriate or necessary.

          Tenant agrees that such policy or policies of insurance shall be on an
 agreed value basis,  and shall permit  release of liability as provided  herein
 and/or  waiver  of   subrogation   clause  as  to  Landlord  so  long  as  such
 release/waiver is available at a commercially  reasonable rate.  Subject to the
 foregoing,  Tenant  waives,  releases  and  discharges  Landlord,  its  agents,
 employees,  and contractors from all claims or demands  whatsoever which Tenant
 may have or acquire  arising out of damage to or  destruction of the machinery,
 equipment,  furniture,  fixtures,  personal  property,  and loss of use thereof
 occasioned  by fire or other  casualty,  whether such claim or demand may arise
 because  of the  negligence  or  fault  of  Landlord,  its  agents,  employees,
 contractors or otherwise,  and Tenant agrees to look to the insurance  coverage
 only in the event of such loss.

          Section 6.3  Landlord's  Liability  and Other  Insurance  Obligations.
 Landlord  shall  maintain,  for its benefit and the benefit of Landlord and its
 managing agent general public liability  insurance  against claims for personal
 injury,  death or  property  damage  occurring  upon,  in or about  the  Office
 Complex, such insurance to afford protection to Landlord and its managing agent
 of a combined single limit of One Million and No/100 Dollars ($1,000,000.00) in
 respect to the injury,  death or property damage arising out of any accident or
 occurrence.  In addition,  Landlord shall carry employer's  liability insurance
 with a minimum limit of $500,000 for bodily injury;  excess liability insurance
 over  the  public  and  employer's  liability  insurance  required  above  with
 combined,  minimum coverage of $6,000,000;  worker's compensation  insurance in
 statutory  limits;  and such other insurance  coverage or increased  amounts of
 referenced  coverages or deductibles  as is  customarily  carried in respect of
 comparable buildings in Loudoun County, Virginia. Landlord agrees to include in
 its  general  public  liability  insurance  policy  the  contractual  liability
 coverage insuring Landlord's  indemnification  obligations provided for herein.
 Such  insurance  shall also  afford  coverage  for all claims  based upon acts,
 omissions,  injury or damage,  which claims  occurred or arose (or the onset of
 which occurred or arose) in whole or in part during the policy period.

          At Tenant's request,  Landlord shall furnish Tenant with a certificate
 of  insurance  certifying  that the  insurance  coverage  required  of Landlord
 pursuant to this Article 6 is in effect. Any insurance required by the terms of
 this  Lease to be  carried  by  Landlord  may be  under a  blanket  policy  (or
 policies)  covering the other  properties of the Landlord and/or its related or
 affiliated entities so long as the insurance  requirements set forth herein are
 satisfied.  If such insurance is maintained  under a blanket  policy,  Landlord
 shall  procure and  deliver to Tenant a  statement  from the insurer or general
 agent of the insurer  setting  forth the  coverage  maintained  and the amounts
 thereof allocated to the risks intended to be insured hereunder.

          Section 6.4 Tenant's Liability Insurance Obligations. Tenant shall, at
 Tenant's  sole cost and expense  but for the mutual  benefit of  Landlord,  its
 managing agent and Tenant,  maintain general public liability insurance against
 claims for personal  injury,  death or property  damage  occurring  upon, in or
 about the  Premises,  such  insurance to afford  protection  to  Landlord,  its
 managing agent and Tenant of a combined  single limit of One Million and No/100
 Dollars

<PAGE>

 ($1,000,000.00) in respect to the injury,  death or property damage arising out
 of any accident or occurrence in the Office Complex. In addition,  Tenant shall
 carry  employer's  liability  insurance  with a minimum  limit of $500,000  for
 bodily injury;  worker's compensation insurance in statutory limits; and excess
 liability insurance over the public and employer's liability insurance required
 above with combined,  minimum coverage of 6,000,000. Such policies of insurance
 shall be written in  companies  reasonably  satisfactory  to  Landlord,  naming
 Landlord and its managing agent as additional insureds thereunder (on a primary
 and non-contributing  basis), and such policies, or a memorandum or certificate
 of such  insurance,  shall be delivered to Landlord  with  evidence  reasonably
 satisfactory  to Landlord that the premium  thereon has been paid. At such time
 as  insurance  limits  required of tenants in office  buildings  in the area in
 which the Of Office  Complex  is located  are  generally  increased  to greater
 amounts,  Landlord  shall have the right to require such greater  limits as may
 then be  customary.  Tenant  agrees to include in such  policy the  contractual
 liability coverage insuring Tenant's  indemnification  obligations provided for
 herein.  Any such coverage  shall be deemed  primary to any liability  coverage
 secured by Landlord.  Such insurance  shall also afford coverage for all claims
 based upon acts,  omissions,  injury or damage,  which claims occurred or arose
 (or the onset of which occurred or arose) in whole or in part during the policy
 period.

          Section 6.5  Indemnifications.  Tenant agrees to  indemnify,  protect,
 defend and hold Landlord and  Landlord's  shareholders,  employees,  lender and
 managing  agent   harmless  from  and  against  any  and  all  claims,   costs,
 liabilities,  actions, and damages, including,  without limitation,  attorneys'
 fees and costs on behalf of any person or persons,  firm or firms,  corporation
 or  corporations,  arising  from any breach or default on the part of Tenant in
 the  performance  of any  covenant  or  agreement  on the part of  Tenant to be
 performed,  pursuant  to the terms of this  Lease,  or arising  from any act or
 negligence  on the  part  of  Tenant  or  its  agents,  contractors,  servants,
 employees or licensees,  or arising from any accident,  injury or damage to the
 extent  caused by Tenant,  its agents,  and  employees  to any person,  firm or
 corporation  occurring during the term of this Lease or any renewal thereof, in
 or about the Premises and Office  Complex,  and from and against all reasonable
 costs,  reasonable counsel fees, expenses and liabilities  incurred in or about
 any such claim or action or proceeding brought thereon;  and in case any action
 or proceeding be brought  against  Landlord or its managing  agent by reason of
 any such  claim,  Tenant,  upon notice from  Landlord,  covenants  to resist or
 defend  such  action  or  proceeding  by  counsel  reasonably  satisfactory  to
 Landlord. Tenant's indemnification shall not apply to losses, claims, costs and
 the like  arising  as a result  of the  negligence  or  willful  misconduct  of
 Landlord or its agents.

          Landlord  hereby  waives all claims  against  Tenant for damage to any
 property  or injury to, or death of, any person in,  upon,  or about the Office
 Complex,  including the Premises,  arising at any time and from any cause other
 than by reason of those matters covered by Tenant's  indemnity in the preceding
 paragraph.  Landlord  shall,  and hereby  agrees to,  indemnify and hold Tenant
 harmless  from any damage to any property or injury to, or death of, any person
 arising from Landlord's breach of its obligation  hereunder,  unless the damage
 is caused by the negligence or willful misconduct of the Tenant, its employees,
 agents,  contractors or representatives.  Landlord's  foregoing indemnity shall
 include  reasonable  attorneys'  fees,   investigation  costs,  and  all  other
 reasonable costs and expenses  incurred by Tenant in any connection  therewith;
 and in case any action or proceeding be brought  against Tenant or its managing
 agent by reason of any such claim, Landlord, upon notice from Tenant, covenants
 to  resist  or  defend  such  action  or  proceeding   by  counsel   reasonably
 satisfactory  to Tenant.  The  provisions of this  paragraph  shall survive the
 termination  of  this  Lease  with  regard  to any  occurrence  prior  to  such
 termination  and any resulting  damage,  injury,  or death. If Tenant is made a
 party to any  litigation  commenced by or against  Landlord or relating to this
 Lease, and provided that in any such litigation  Tenant is not adjudicated in a
 court of final  appeal to be at fault,  then  Landlord  shall pay all costs and
 expenses,  including  actual,  but not  unreasonable  attorneys' fees and court
 costs  incurred by or imposed upon Tenant because of any such  litigation,  and
 the amount of all such costs and expenses including actual but not unreasonable
 attorneys' fees and court costs shall be a demand  obligation owing by Landlord
 to Tenant.

          Section  6.6  Tenant's  Waiver.   Except  to  the  extent  covered  by
 Landlord's  indemnity in Section 6.5 above,  Tenant  agrees,  to the extent not
 expressly prohibited by law, that Landlord, its agents,  employees and servants
 shall not be liable,  and Tenant  waives all claims for damage to property  and
 business  sustained  during  the term of this Lease by Tenant  occurring  in or
 about the Office Complex, resulting directly or indirectly from any existing or
 future condition,  defect, matter or thing in the Premises, the Office Complex,
 or any part thereof, or from equipment or appurtenances  becoming out of repair
 or from accident,  or from any  occurrence or act or omission of Landlord,  its
 agents, employees or servants, or any tenant or occupant of the Building or any
 other person.  This paragraph shall apply  especially but not  exclusively,  to
 damage caused by aforesaid or by the flooding of basements or other  subsurface
 areas, or by refrigerators,  sprinkling  devices,  air conditioning  apparatus,
 water,  snow, frost,  steam,  excessive heat or cold,  falling plaster,  broken
 glass,  sewage,  gas,  odors or noise,  or the  bursting or leaking of pipes or
 plumbing  fixtures,  and shall apply  equally,  whether any such damage results
 from the act or omission of other tenants or occupants in the Office Complex or
 any other  persons,  and whether such damage

<PAGE>

be  caused  by or  result  from any of the  aforesaid,  or shall be caused by or
result from other circumstances of a similar or dissimilar nature.

          Section 6.7 Landlord's  Deductible and Tenant's  Property.  Provisions
 herein to the contrary  notwithstanding,  in the event any damage to the Office
 Complex results  directly and  exclusively  from any act or omission of Tenant,
 its agents, employees or invitees, and all or any portion of Landlord's loss is
 "deductible,"  Tenant shall pay to Landlord the amount of such  deductible loss
 (not to exceed $1,000 per event).

          Section 6.8 Tenant's  Property.  All property in the Office Complex or
 on the  Premises  belonging  to Tenant,  its  agents,  employees,  invitees  or
 otherwise  located at the  Premises,  shall be at the risk of Tenant only,  and
 Landlord,  except to the extent covered by Landlord's indemnity in Section 6.5,
 shall not be liable  for  damage  thereto  or theft,  misappropriation  or loss
 thereof and Tenant agrees to defend and hold  Landlord,  its agents,  employees
 and servants  harmless and  indemnify  them against  claims and  liability  for
 injuries to such property.

          Section 6.9 Payment for  Insurance.  On an annual basis and within ten
 (10) days of demand  and  presentation  of  invoices,  Tenant  shall  reimburse
 Landlord  for the cost of the  insurance  carried by  Landlord  pursuant to the
 provisions of this Lease.  All amounts due from Tenant pursuant to this Section
 6.9 shall constitute Additional Rent.

          Section 6.10 Tenant's Failure to Insure.  In the event Tenant fails to
 provide  Landlord  with  evidence of  insurance  required  under this Article 6
 within  thirty (30) days of Landlord's  written  request  therefor,  but in any
 event at least ten (10) days prior to the  expiration  of the existing  policy,
 Landlord  may,  but shall not be  obligated  to,  without  further  demand upon
 Tenant,  and without waiving or releasing Tenant from any obligation  contained
 in this Lease,  effect such insurance and Tenant agrees to repay,  upon demand,
 all such sums incurred by Landlord in effecting such  insurance.  All such sums
 shall  become a part of the  Additional  Rent  payable  hereunder,  but no such
 payment by Landlord shall relieve Tenant from any default under this Lease.

                                    ARTICLE 7
                       CERTAIN RIGHTS RESERVED BY LANDLORD

          Section  7.1  Rights  Reserved  by  Landlord.  Landlord  reserves  the
 following rights without liability to Tenant and without effecting an eviction,
 constructive or actual, or disturbance of Tenant's use or possession, or giving
 rise to any  claim  for set  off or  abatement  of  rent  except  as  otherwise
 expressly set forth herein:

          (a)  Retain  Keys.  To retain  at all times and to use in  appropriate
 instances keys to all doors within and into the Premises,  except keys or other
 devices allowing entry to the "secure areas"  designated on the Tenant's Plans,
 as such  areas may be  changed by Tenant  from time to time  following  written
 notice  to  Landlord.  No locks  shall be  changed  (except  locks in or to the
 "secure  areas)  without the prior written  notice to Landlord.  This provision
 shall not apply to Tenant's safes, or other areas  maintained by Tenant for the
 safety and security of monies, securities,  negotiable instruments,  classified
 materials or similar items.  To the extent  reasonably  possible,  (i) Landlord
 shall give Tenant  notice prior to entering the Premises,  and (ii)  Landlord's
 entry shall be during normal business hours,  and Landlord shall be accompanied
 by a representative of Tenant at all times.

          (b)  Make  Repairs.  To  make  repairs,  alterations,   additions,  or
 improvements, whether structural or otherwise, in and about the Office Complex,
 or any part  thereof,  and for such  purposes to enter upon the  Premises,  and
 during  the  continuation  of any of said work,  to  temporarily  close  doors,
 entryways,  public spaces, and corridors in the Office Complex and to interrupt
 or  temporarily  suspend  services and  facilities,  so long as Landlord at all
 times uses its best commercially reasonable efforts and endeavors in good faith
 to limit  any  interference  with  the  conduct  of  Tenant's  business  or its
 occupancy and use of the Premises.  If, as a result of Landlord's  material and
 adverse  interference,  Tenant  ceases  operating  at the Premises for five (5)
 consecutive  business days, Tenant shall be entitled to an abatement of Rent on
 a daily  basis  beginning  on the  sixth  (6th)  consecutive  business  day and
 continuing  until the earlier of (i)  cessation  of such  material  and adverse
 interference,  or (ii) the date on which Tenant resumes business  operations at
 the Premises.  If, as a result of Landlord's material and adverse interference,
 Tenant ceases  operating at the Premises for ninety (90)  consecutive  business
 days,  Tenant shall be entitled to terminate  the Lease by  delivering  written
 notice to Landlord prior to the one hundredth (100th) consecutive  business day
 of material and adverse interference.  In exercising its right to make repairs,
 alterations and the like, to the extent reasonably possible, (i) Landlord shall
 give Tenant notice prior to entering the Premises,  (ii) Landlord's entry shall
 be during  normal  business  hours,  and (iii) if required by Tenant,  Landlord
 shall be accompanied by a representative of Tenant.

<PAGE>

          (c) Regulate Heavy Equipment. To approve the weight, size and location
 of safes and other heavy  equipment  and articles in and about the Premises and
 the Office  Complex  and to require  all such items to be moved into and out of
 the Office  Complex and the  Premises  only at such times and in such manner as
 Landlord shall direct in writing  excluding initial move in and final move out.
 Landlord hereby consents to the weight, size and location of equipment shown on
 Tenant's Plans.

          Section 7.2  Emergency  Entry.  Landlord  and its agents may enter the
 Premises at any time in case of  emergency  and shall have the right to use any
 and all means  which  Landlord  may  reasonably  deem proper to open such doors
 during an emergency in order to obtain entry to the Premises, provided Landlord
 promptly repairs all damages caused thereto. Any entry to the Premises obtained
 by Landlord in the event of an emergency shall not, under any circumstances, be
 construed  or deemed to be a forcible or unlawful  entry into,  or detainer of,
 the  Premises,  or to be an eviction of Tenant from the Premises or any portion
 thereof.  Landlord  shall advise  Tenant prior to or  concurrent  with any such
 entry so long as Tenant shall have  provided  Landlord  with an emergency  call
 list.

          Section 7.3 Exhibition of Premises.  Tenant shall permit  Landlord and
 its agents,  upon not less than twenty  four (24) hours'  notice,  to enter and
 pass through the Premises or any part thereof at reasonable times during normal
 business  hours to: (a) post  notices of  non-responsibility;  (b)  exhibit the
 Premises to holders of encumbrances on the interest of Landlord under the Lease
 and to  prospective  purchasers or mortgagees  of the Office  Complex;  and (c)
 during the period of six (6) months prior to the  expiration of the Lease Term,
 exhibit the Premises to prospective  tenants thereof.  Tenant shall be entitled
 to provide an escort if Landlord  enters the Premises for any of the  aforesaid
 reasons.  In  addition,  Landlord  may  post  commercially  reasonable  signage
 indicating  that the Premises  will be available for  occupancy.  If during the
 last month of the Lease Term,  Tenant shall have removed  substantially  all of
 Tenant's  property  and  personnel  from  the  Premises,  Landlord  may,  after
 obtaining  the  consent  of Tenant and  satisfying  such  reasonable  insurance
 obligations and  indemnification  requirements as Tenant may impose,  enter the
 Premises and repair,  alter, and redecorate the same, without abatement of Rent
 and  without  liability  to Tenant,  and such acts shall have no effect on this
 Lease.

          Section 7.4 Right of Landlord to Perform. All covenants and agreements
 to be  performed  by  Tenant  under  any of the  terms of this  Lease  shall be
 performed by Tenant at Tenant's sole cost and expense and without any abatement
 of Rent.  If Tenant  shall  fail to pay any sum of money  (other  than Rent due
 Landlord)  required  to be paid by it  hereunder  or shall fail to perform  any
 other act on its part to be performed hereunder, including; but not limited to,
 the failure to commence and complete repairs  promptly and adequately,  and the
 failure to remove any liens or  otherwise  to  perform  any act or fulfill  any
 obligation required of Tenant under this Lease,  Landlord may, but shall not be
 obligated to, and without  waiving or releasing  Tenant from any obligations of
 Tenant,  make any such  payment or perform any such act on Tenant's  part to be
 made or performed as in this Lease  provided.  All sums so paid by Landlord and
 all necessary incidental costs, together with an administrative overhead charge
 equal to twenty percent (20%) of the actual costs incurred, shall be payable to
 Landlord by Tenant as Rent on demand and Tenant covenants to pay all such sums.
 Landlord  shall have (in addition to any other right or remedy of Landlord) the
 same rights and remedies in the event of Tenant's  nonpayment  of such sums, as
 in the  case  of  default  by  Tenant  in the  payment  of  Rent  to  Landlord.
 Notwithstanding  the  foregoing,  except in the case of an emergency,  Landlord
 agrees  not to  perform  for  Tenant's  account  until  the  expiration  of all
 applicable notice and cure periods referenced in Section 14.1 of this Lease.

                                    ARTICLE 8
                          ALTERATIONS AND IMPROVEMENTS

         Section 8.1  Tenant's  Changes and  Alterations.  Tenant shall have the
 right at any time, and from time to time during the term of this Lease, to make
 such  changes  and  alterations,  structural  or  otherwise,  to the  Premises,
 improvements  and  fixtures  hereafter  erected on the Premises as Tenant shall
 deem  necessary  or  desirable  in  connection  with  the  requirements  of its
 business,  which changes and alterations  (other than changes or alterations of
 Tenant's  movable  trade  fixtures  and  equipment)  shall be made in all cases
 subject to the  following  conditions,  which  Tenant  covenants to observe and
 perform:

(a)    Permits.  No change or alteration  shall be undertaken until Tenant shall
       have  procured  and paid for,  so far as the same may be  required by the
       applicable  governmental  authorities  from time to time,  all municipal,
       state and federal permits and authorizations of the various  governmental
       bodies and departments having jurisdiction  thereof,  and Landlord agrees
       to join in the  application for such permits or  authorizations  whenever
       such action is necessary, all at Tenant's sole cost and expense.

(b)    Compliance  with Plans and  Specifications.  Before  commencement  of any
       change,  alteration,  restoration or construction  (hereinafter sometimes
       referred to as "Work")  involving in the  aggregate an estimated  cost of
       more than  $10,000 or which  would  materially  alter the  mechanical  or
       electrical  systems of the  Building,  Tenant shall (i) furnish  Landlord
       with

<PAGE>
       detailed plans and  specifications  of the proposed change or alteration;
       (ii) obtain Landlord's prior written consent,  which consent shall not be
       unreasonably  withheld;  (iii)  provide  Landlord  with  the  name of the
       licensed  architect or licensed  professional  engineer selected and paid
       for by Tenant, who shall supervise any such work (hereinafter referred to
       as "Alterations Architect or Engineer"); and (iv) obtain Landlord's prior
       written  approval  of  detailed  plans and  specifications  prepared  and
       approved in writing by said  Alterations  Architect or  Engineer,  and of
       each amendment and change thereto.

(c)    Value Maintained.  Any change or alteration shall, when completed,  be of
       such character as not to reduce the value of the Premises or the Building
       to which such change or  alteration  is made below its value  immediately
       before such  change or  alteration,  nor shall such change or  alteration
       reduce the area or cubic content of the Building, nor change the Building
       as to use without  Landlord's  express  written  consent.  Tenant further
       agrees that in no event shall any change or alteration void or impair any
       of  Landlord's  warranties  on the  Building  and, to the extent same are
       voided or  impaired,  Landlord's  corresponding  warranties  to Tenant as
       contained in this Lease shall be likewise voided.

(d)    Compliance  with  Laws.  All Work done in  connection  with any change or
       alteration  shall be done promptly and in a good and  workmanlike  manner
       and in compliance with all building and zoning laws of the place in which
       the Premises are situated, and with all laws, ordinances,  orders, rules,
       regulations  and  requirements  of  all  federal,   state  and  municipal
       governments and appropriate departments, commissions, boards and officers
       thereof,  and in accordance with the orders, rules and regulations of the
       Board of Fire Underwriters  where the Premises are located,  or any other
       body  exercising  similar  functions.  The  cost of any  such  change  or
       alteration  shall be paid so that the Premises  and all portions  thereof
       shall at all times be free of liens for labor and  materials  supplied to
       the  Premises,  or  any  portion  thereof.  The  Work  of any  change  or
       alteration  shall be prosecuted with reasonable  dispatch,  delays due to
       strikes,  lockouts,  acts of God, inability to obtain labor or materials,
       governmental  restrictions or similar causes beyond the control of Tenant
       excepted.  Tenant shall obtain and maintain,  or cause to be obtained and
       maintained,  at no expense to  Landlord,  during the  performance  of the
       Work,  workers"  compensation  insurance in normal and customary amounts,
       covering  all  persons  employed  in  connection  with  the Work and with
       respect  to which  death or  injury  claims  could  be  asserted  against
       Landlord  or Tenant or against  the  Premises  or any  interest  therein.
       Tenant shall also cause any contractor performing work on Tenant's behalf
       to carry and  maintain,  at no  expense  to  Landlord,  a  non-deductible
       comprehensive  general liability  insurance  policy,  which shall include
       contractor's   liability   coverage,   contractual   liability  coverage,
       completed  operations  coverage, a broad form property damage endorsement
       and contractor's  protective liability coverage to afford protection with
       limits,  for each  occurrence,  of not less than  Three  Million  Dollars
       ($3,000,000)  combined single limit,  written on an occurrence  basis and
       naming Landlord as an additional insured. In addition, the fire insurance
       with "extended coverage" endorsement required by Section 6.1 hereof shall
       be supplemented with "builder's risk" insurance on a completed value form
       or other comparable coverage on the Work.

    Tenant agrees that such policy or policies of insurance shall permit release
 of liability  as provided  herein  and/or  waiver of  subrogation  clause as to
 Landlord  so  long  as  such  release/waiver  is  available  at a  commercially
 reasonable rate. Subject to the foregoing, Landlord shall not be liable for any
 claims or demands  whatsoever  relating to the performance of Work in or around
 the Premises,  and Tenant and its contractors shall look to insurance  coverage
 only in the event of such  loss.  All such  insurance  shall be in a company or
 companies  authorized  to do  business in the state in which the  Premises  are
 located and  reasonably  satisfactory  to  Landlord,  and all such  policies of
 insurance or, at Tenant's option,  certificates of insurance shall be delivered
 to Landlord  endorsed "Premium Paid" by the company or agency issuing the same,
 or with other evidence of payment of the premium satisfactory to Landlord.

          (e)    Property of Landlord.  Unless otherwise designated by Tenant at
                 the time Landlord's  consent is obtained,  all improvements and
                 alterations  (other than Tenant's  movable  trade  fixtures and
                 equipment) made or installed by Tenant shall immediately,  upon
                 completion  or  installation  thereof,  become the  property of
                 Landlord  without  payment  therefor by Landlord,  and shall be
                 surrendered  to Landlord on the  expiration of the term of this
                 Lease.

          (f)    Location of Improvements. No change, alteration, restoration or
                 new  construction  shall be in or connect the Premises with any
                 property,  building or other  improvement  located  outside the
                 boundaries  of  the  Land,  nor  shall  the  same  obstruct  or
                 interfere with any existing easement.

          (g)    Removal of  Improvements.  As a condition to granting  approval
                 for any changes or alterations  Landlord,  by written notice to
                 Tenant,  given  at or  prior  to  the  time  of  granting  such
                 approval,  may  require  Tenant  to  remove  any  improvements,
                 additions or installations  installed by Tenant in the Premises
                 at Tenant's  sole cost and expense,  and repair and restore any
                 damage  caused  by  the
<PAGE>

                 installation and removal of such  improvements,  additions,  or
                 installations;   provided,   however,  the  only  improvements,
                 additions or  installations  which Tenant shall remove shall be
                 those specified in such notice. All improvements,  additions or
                 installations   installed  by  Tenant  which  did  not  require
                 Landlord's  prior  approval  shall be removed by Tenant  unless
                 Tenant has  obtained a written  waiver of such  condition  from
                 Landlord.

          (h)    Written Notification Required.  Tenant shall notify Landlord in
                 writing  ten (10) days  prior to  commencing  any  alterations,
                 additions  or  improvements  to the  Premises  which  have been
                 approved by Landlord so that  Landlord  shall have the right to
                 record and post notices of non-responsibility on the Premises.

          (i)    Landlord's Approval.  Notwithstanding  anything to the contrary
                 contained  herein,  any  alterations,  modifications  or  other
                 changes to the exterior  structure  and  systems,  load bearing
                 elements,  foundations, pipes and conduits and roof that form a
                 part of the  Building  shall be  subject  to  Landlord's  prior
                 written consent, such consent not to be unreasonably  withheld,
                 delayed or conditioned.

         Section  8.2  Nonstructural   Alterations/Without  Landlord's  Consent.
 Notwithstanding  the  foregoing,  Tenant shall have the right from time to time
 and at any time,  without  Landlord's  consent,  to perform the following  work
 within the  Premises:  (i) install,  remove and relocate  nonstructural  office
 partitioning  provided such work does not materially  and adversely  affect the
 base building structure or HVAC systems, (ii) paint and install wall coverings,
 (iii) install and remove office furniture,  (iv) relocate  electrical  outlets,
 (v) install and remove workstations, (vi) install and remove Tenant's equipment
 and perform cable pulls in connection  therewith,  and (vii) install and remove
 carpeting and other floor coverings.

                  Section 8.3 Freedom  from  Liens.  Tenant  shall not suffer or
 permit  any  mechanic's  lien or other  lien to be  filed  against  the  Office
 Complex,  or any portion thereof,  by reason of work, labor,  skill,  services,
 equipment  or  materials  supplied  or claimed to have been  supplied to the Of
 Office Complex at the request of Tenant, or anyone holding the Premises, or any
 portion thereof,  through or under Tenant. If any such mechanic's lien or other
 lien shall at any time be filed  against  the Office  Complex,  or any  portion
 thereof, Tenant shall cause the same to be discharged of record or satisfied by
 bonding  within 30 days of the date of filing the same. If Tenant shall fail to
 discharge or bond off such  mechanic's  lien or liens or other lien within such
 period, then, in addition to any other right or remedy of Landlord,  after five
 (5) days  prior  written  notice  to  Tenant,  Landlord  may,  but shall not be
 obligated to,  discharge the same by paying to the claimant the amount  claimed
 to be due or by procuring the  discharge of such lien as to the Office  Complex
 by deposit in the court  having  jurisdiction  of such  lien,  the  foreclosure
 thereof or other proceedings with respect thereto,  of a cash sum sufficient to
 secure the discharge of the same, or by the deposit of a bond or other security
 with such court sufficient in form, content and amount to procure the discharge
 of such lien, or in such other manner having  reasonable  cost as is now or may
 in the future be  provided by present or future law for the  discharge  of such
 lien as a lien against the Of Office Complex.  Such amount paid by Landlord, or
 the value of such deposit so made by  Landlord,  together  with all  reasonable
 costs,  fees  and  expenses  in  connection  therewith  (including   reasonable
 attorney's  fees of Landlord),  together  with interest  thereon at the Default
 Rate,  shall be repaid by Tenant to Landlord  within thirty (30) days following
 demand by  Landlord  and if unpaid may be treated as  Additional  Rent.  Tenant
 shall  indemnify and defend  Landlord  against and save Landlord and the Office
 Complex,  and any portion thereof,  harmless from all losses,  costs,  damages,
 expenses,  liabilities,  suits,  penalties,  claims,  demands and  obligations,
 including,  without limitation,  reasonable  attorney's fees resulting from the
 assertion,  filing,  foreclosure or other legal proceedings with respect to any
 such mechanic's lien or other lien.

         Tenant  shall   specifically   notify  all  materialmen,   contractors,
 artisans,  mechanics, laborers and any other person now or hereafter furnishing
 any labor, services, materials, supplies or equipment to Tenant with respect to
 the Office Complex, or any portion thereof,  that they must look exclusively to
 Tenant to obtain  payment for the same,  and that Landlord  shall not be liable
 for any labor, services,  materials,  supplies,  skill, machinery,  fixtures or
 equipment  furnished  or to be  furnished  to Tenant upon  credit,  and that no
 mechanic's  lien  or  other  lien  for any  such  labor,  services,  materials,
 supplies, machinery, fixtures or equipment shall attach to or affect the estate
 or interest of Landlord in and to the Office Complex, or any portion thereof.

         Section 8.4 Landlord's  Indemnification.  The provisions of Section 8.3
 above shall not apply to any mechanic's lien or other lien for labor, services,
 materials,  supplies,  machinery, fixtures or equipment furnished to the Office
 Complex in the performance of Landlord's  obligations to construct  required by
 the Work  Agreement,  and Landlord  does hereby  agree to indemnify  and defend
 Tenant against and save Tenant and the Office Complex, and any portion thereof,
 harmless  from  all  losses,  costs,  damages,  expenses,  liabilities,  suits,
 penalties,  claims,  demands and obligations,  including,  without  limitation,
 reasonable attorney's fees resulting from the assertion, filing, foreclosure or
 other legal proceedings with respect to any such mechanic's lien or other lien.

<PAGE>

          Section 8.5 Removal of Liens. Except as otherwise provided for in this
 Article  8,  Tenant  shall not  create,  permit or suffer,  and shall  promptly
 discharge and satisfy of record, any other lien, encumbrance,  charge, security
 interest,  or  other  right  or  interest  which  shall  be or  become  a lien,
 encumbrance,  charge or  security  interest  upon the  Office  Complex,  or any
 portion  thereof,  or the income  therefrom,  or on the interest of Landlord or
 Tenant in the Office Complex, or any portion thereof, save and except for those
 liens, encumbrances,  charges, security interests, or other rights or interests
 consented  to, in writing,  by Landlord,  or those  mortgages,  assignments  of
 rents, assignments of leases and other mortgage documentation placed thereon by
 Landlord in financing or refinancing the Office Complex.

                                    ARTICLE 9
                                     REPAIRS

          Section 9.1 Tenant's Repair Obligations.  Subject to Article 6 hereof,
 and except to the extent the responsibility of Landlord pursuant to Section 9.2
 below, Tenant shall,  during the term of this Lease, at Tenant's expense,  keep
 the  Building  and all changes and  alterations  made by Tenant to the Building
 (whether  non-structural or structural) in as good order,  condition and repair
 as they were at the time Tenant took  possession of the same,  reasonable  wear
 and tear and damage from fire and other casualties excepted.  Tenant shall keep
 the Premises in a neat and sanitary condition and shall not commit any nuisance
 or waste on the  Premises  or in,  on, or about  the  Office  Complex  or throw
 foreign substances in the plumbing  facilities.  All uninsured damage or injury
 to the Premises,  or to the Office Complex  caused by Tenant moving  furniture,
 fixtures,  equipment,  or other  devices  in or out of the  Premises  or Office
 Complex  or by  installation  or  removal of  furniture,  fixtures,  equipment,
 devices or other  property  of Tenant,  its  agents,  contractors,  servants or
 employees, due to carelessness,  omission,  neglect, improper conduct, or other
 cause of Tenant, its servants, employees, agents, visitors, or licensees, shall
 be  repaired,  restored  and  replaced  promptly by Tenant at its sole cost and
 expense to the reasonable  satisfaction of Landlord. All repairs,  restorations
 and  replacements  shall be in quality and class equal to the original work and
 shall comply with all requirements of the Lease.

          Section  9.2  Landlord's  Repair  Obligations.   Subject  to  Tenant's
 obligations  contained in Section 9.1 above,  Landlord  shall keep the exterior
 structure and systems, load bearing elements,  foundations,  pipes and conduits
 and roof that form a part of the Building in good order, condition and repair.

          Section 9.3 Joint Inspection Upon Vacation.  Tenant shall give written
 notice to Landlord at least thirty (30) days prior to vacating the Premises for
 the express purpose of arranging a meeting with Landlord for a joint inspection
 of the  Premises.  In the event of  Tenant's  failure  to give such  notice and
 arrange  such joint  inspection,  Landlord's  inspection  at or after  Tenant's
 vacation of the Premises shall be  conclusively  deemed correct for purposes of
 determining Tenant's responsibility for repairs and restoration hereunder.

                                   ARTICLE l0
                            ASSIGNMENT AND SUBLETTING

          Section  10.1  Restriction  on  Transfer.  Tenant shall not sublet the
 Premises,  or any portion thereof, nor assign,  mortgage,  pledge,  transfer or
 otherwise encumber or dispose of this Lease, or any interest therein, or in any
 manner assign,  mortgage,  pledge, transfer or otherwise encumber or dispose of
 its  interest  or estate  in the  Premises,  or any  portion  thereof,  without
 obtaining  Landlord's  prior written consent in each and every instance,  which
 consent shall not be unreasonably  withheld or delayed,  provided the following
 conditions are complied with:

(a)      Any assignment of this Lease (but specifically  excluding any sublease)
         shall  transfer  to the  assignee  all of  Tenant's  right,  title  and
         interest  in this Lease and all of  Tenant's  estate or interest in the
         Premises.

(b)      At the time of any  assignment  or  subletting,  and at the  time  when
         Tenant requests Landlord's written consent thereto,  this Lease must be
         in full force and effect,  without any breach or default  thereunder on
         the part of Tenant beyond any applicable notice and cure period.

(c)      Any such assignee (but  specifically  excluding  any  subleases)  shall
         assume,  by  written,   recordable  instrument,  in  form  and  content
         reasonably   satisfactory  to  Landlord  and  such  assignee,  the  due
         performance of all of Tenant's  obligations  under this Lease,  an such
         assumption  agreement shall state that the same is made by the assignee
         for the  express  benefit  of  Landlord  as a third  party  beneficiary
         thereof.  A copy of the assignment and  assumption  agreement,  both in
         form and content  reasonably  satisfactory to Landlord,  fully executed
         and  acknowledged  by  assignee,  together  with a certified  copy of a
         properly   executed   corporate   resolution  (if  the  assignee  be  a
         corporation)

<PAGE>

         authorizing  the execution and delivery of such  assumption  agreement,
         shall be sent to Landlord ten (10) days prior to the effective  date of
         such assignment.

(d)      In the case of a subletting,  a copy of any sublease fully executed and
         acknowledged  by Tenant and the  subleases  shall be mailed to Landlord
         within  thirty  (30)  days   following  the  effective   date  of  such
         subletting.

(e)      Such  assignment or subletting  shall be subject to all the provisions,
         terms, covenants and conditions of this Lease (except, in the case of a
         sublease,  payment of the Base Rent and Additional  Rent due under this
         Lease),  and  Tenant-assignor  (and the guarantor or guarantors of this
         Lease,  if any) and the assignee or assignees  shall continue to be and
         remain liable under this Lease.

(f)      Each  sublease   permitted   under  this  Section  10.1  shall  contain
         provisions to the effect that (i) such sublease is only for the use and
         occupancy by the  subleases  and not any other third  party;  (ii) such
         sublease is subject and subordinate to all of the terms,  covenants and
         conditions  of  this  Lease  and  to  all of  the  rights  of  Landlord
         thereunder;  and (iii) in the event this Lease shall  terminate  before
         the  expiration  of  such  sublease,  the  subleases  thereunder  will,
         provided Landlord and its lender(s)  recognizes such sublessee's rights
         under the sublease  and agrees not to disturb  Tenant's  occupancy  and
         possession  so long as Tenant is not in default  thereunder,  attorn to
         Landlord and waive any rights the subleases may have to "terminate  the
         sublease  or to  surrender  possession  thereunder,  as a result of the
         termination   of  this   Lease.   Landlord   agrees  to  enter  into  a
         Subordination,  Non-Disturbance and Attornment  Agreement ("SNDA") with
         the subtenants,  the substance of which shall be substantially  similar
         to the SNDA attached as Exhibit C, and Landlord  agrees to use its best
         commercially  reasonable efforts to obtain such an SNDA from Landlord's
         Mortgagee(s) (as defined in Section 15.3 hereof) for the benefit of the
         subtenants.

(g)      Tenant  agrees  to pay on behalf of  Landlord  any and all  reasonable,
         actual out-of-pocket costs of Landlord, including reasonable attorney's
         fees  actually paid or payable to outside  counsel,  occasioned by such
         assignment or subletting.  Landlord agrees to use good faith efforts to
         minimize the fees of outside counsel.

                  For  purposes of this Lease,  any  transfer of less than fifty
         percent  (50%)  in the  aggregate  of  stock,  membership  interest  or
         partnership interest in Tenant shall not constitute an assignment.

         Tenant may, without Landlord's prior written consent, (a) sublet all or
 a portion of the Premises to any related  corporation  or entity which controls
 Tenant,  is controlled by Tenant or is under common control with Tenant; or (b)
 assign this Lease to a successor corporation into which or with which Tenant is
 merged or consolidated or which acquires  substantially  all of Tenant's assets
 and property;  provided that (i) in the case of an  assignment,  such successor
 entity assumes all of the obligations  and  liabilities of Tenant,  (ii) in the
 case  of an  assignment  or a  sublease,  such  successor  entity's  net  worth
 indicates  that the entity has similar  financial  capability as Tenant and the
 ability to meet the obligations herein, and (iii) such subletting or assignment
 does not violate the terms of any deeds of trust  encumbering  the  Building of
 which Tenant has been provided notice.

          Section  10.2  Restriction  From  Further   Assignment.   Any  further
 assignment or subleasing  shall be governed by the terms of this Article 10. No
 assignment or subleasing shall relieve Tenant from any of Tenant's  obligations
 set forth in this Lease.

          Section 10.3 Landlord's Termination Rights. Intentionally Deleted.

          Section 10.4 Tenant's  Failure to Comply.  Tenant's  failure to comply
 with all of the foregoing  provisions  and  conditions of this Article 10 shall
 (whether  or not  Landlord's  consent  is  required  under  this  Article),  at
 Landlord's option,  render any purported assignment or subletting null and void
 and of no  force  and  effect.  Notwithstanding  the  foregoing,  in the  event
 Landlord receives written notice specifically stating that Tenant has failed to
 comply with the terms of this Article 10, then if Landlord  desires to exercise
 its right to render the applicable  sublease  and/or  assignment null and void,
 Landlord  must do so  within  sixty  (60) days of the date of  receipt  of such
 notice.

          Section 10.5 Sharing of Excess  Rent.  If Landlord  consents to Tenant
 assigning its interest under this Lease or subletting all or any portion of the
 Premises,  Tenant  shall pay to  Landlord  (in  addition  to Rent and all other
 amounts  payable  by  Tenant  under  this  Lease)  50% of the  rents  and other
 considerations  payable  by  such  assignee  or  subtenant  (net  of  brokerage
 commissions,  improvement  costs,  legal  fees and other  reasonable  costs and
 expenses incurred in connection with the assignment or subletting) in excess of
 the Rent  otherwise  payable by Tenant from time to time under this Lease.  For
 the purposes of this computation, the additional amount payable by Tenant shall
 be determined by either (i)  application of the rental rate per square foot for
 the Building or any portion thereof sublet, or (ii) the fair

<PAGE>

 market rental rate for rooftop space or other space at the Premises sublet,  as
 applicable.  Said additional amount shall be paid to Landlord  immediately upon
 receipt by Tenant of such Rent or other  considerations  from the  assignee  or
 subtenant.

                                   ARTICLE 11
                        DAMAGE BY FIRE OR OTHER CASUALTY

          Section 11.1  Tenantable  Within 180 Days.  If fire or other  casualty
 shall  render the whole or any material  portion of the Premises  untenantable,
 Landlord  shall  obtain an estimate  for the time  required  to rebuild  from a
 reputable  licensed  contractor,  and shall forward the time estimate to Tenant
 within  thirty  (30) days  from the date of such  damage  or  destruction.  If,
 pursuant to the  estimate,  the Premises can  reasonably be expected to be made
 tenantable  within one hundred  eighty  (180) days from the date of such event,
 then  Landlord  shall repair and restore the  Premises  and the Office  Complex
 within such one hundred eighty (180) day period. In the event of the foregoing,
 this Lease shall remain in full force and effect.

          Section 11.2 Not Tenantable  Within 180 Days. If, pursuant to the time
 estimate  referenced in Section I I. I above, the Premises cannot reasonably be
 expected to be made  tenantable  within one hundred  eighty (180) days from the
 date of the  casualty  event,  then Tenant  may, by written  notice to Landlord
 within thirty (30) days from the date of Landlord's  time  estimate,  terminate
 this Lease.  Tenant's  termination  notice shall state a termination date which
 shall be at least  thirty  (30) days but no more than  sixty (60) days from the
 date of the termination notice.

          Section  11.3 Damage  Occurring  at End of Term.  Notwithstanding  the
 terms of Sections  11.l and 11.2 above,  in the event the  Premises are damaged
 during the last  twenty-four  (24) months of the initial  term to the extent of
 twenty-five percent (25%) or more of the replacement cost thereof,  Landlord or
 Tenant may terminate this Lease by giving written notice of such termination to
 the  other  party  within  sixty  (60)  days of the date of the  casualty.  The
 termination  notice shall specify a termination  date at least thirty (30) days
 but not more than sixty (60) days after the date of such notice.

          Notwithstanding  anything to the  contrary  contained  in this Section
 11.3,  Tenant  shall be entitled to nullify  Landlord's  termination  notice by
 delivering to Landlord written notice ("Renewal  Notice") of Tenant's  exercise
 of any then  outstanding  renewal options granted to Tenant pursuant to Section
 16.32 of this Lease.  The Renewal Notice shall be delivered  within thirty (30)
 days of the date of Landlord's termination notice.

          Section 11.4 Uninsured Casualty.  If an uninsured casualty event shall
 render  any  portion  of the  Premises  or any  material  portion of the Office
 Complex  untenantable,  then so long as  Landlord  shall have had in effect all
 insurance  required  by the terms of this  Lease,  Landlord  may,  by notice to
 Tenant,  mailed  within  thirty  (30)  days  from the date of such  damages  or
 destruction, terminate this Lease effective upon a date within thirty (30) days
 from the date of such notice.

          Section  11.5  Deductible  Payments.  If the  Premises  or the  Office
 Complex is damaged,  and such damage is of the type insured  against  under the
 fire and special form property  damage  insurance  required to be maintained by
 Landlord  hereunder,  the cost of repairing said damage up to the amount of the
 deductible  under said  insurance  policy shall be paid by Tenant to the extent
 the same is reasonable and customary;  provided,  however, to the extent Tenant
 has  remised a portion  of the  Building  back to  Landlord  and  Landlord  has
 consented to same in writing,  the  deductible  amount due from Tenant shall be
 reduced  proportionately.  If the  damage  is not  covered  by  such  insurance
 policies  and  Landlord  elects to repair the  damage,  then  Tenant  shall pay
 Landlord the "deductible amount" (if any) under Landlord's  insurance policies,
 and, if the damage was directly and exclusively caused by an act or omission of
 Tenant,  the  difference  between the actual  cost of repair and any  insurance
 proceeds received by Landlord.

          Section 11.6 Landlord's Repair Obligations.  If fire or other casualty
 shall render the whole or any material  part of the Premises  untenantable  and
 neither  Landlord  nor  Tenant  terminates  this Lease  pursuant  to its rights
 herein,  then  Landlord  shall  repair and restore the  Premises and the Office
 Complex to as near their  condition  prior to the fire or other  casualty as is
 reasonably  possible with all due diligence and speed and within the applicable
 time period  required by this  Article 11 (subject to delays for causes  beyond
 Landlord's  reasonable  control)  and the Rent for the period  during which the
 Premises are untenantable  shall be equitably abated (based upon the portion of
 the Premises which is untenantable). In no event shall Landlord be obligated to
 repair or restore any special equipment or improvements  installed by Tenant at
 Tenant's expense.

          Section 11.7 Rent Apportionment. In the event of a termination of this
 Lease  pursuant to this  Article ll,  Rent shall be  apportioned  on a per diem
 basis and paid to the date of the Lease termination.

<PAGE>

          Section 11.8 Insurance  Trustee.  If Landlord fails to comply with its
 obligation  to rebuild  the  Premises  pursuant  to this  Article ll and Tenant
 elects to exercise  its  self-help  rights as set forth in Section 14.7 hereof,
 upon receipt of written  instructions  from Tenant,  Landlord  shall inform its
 insurance company that Tenant has undertaken the rebuilding of the Premises and
 all insurance proceeds shall thereafter be placed with an insurance trustee and
 disbursed upon terms and conditions  similar to those  contained in an industry
 standard construction loan agreement.

                                   ARTICLE 12
                                 EMINENT DOMAIN

          Section 12.1  Tenant's  Termination.  If the whole of or a substantial
 part of the  Premises  is taken by any  public  authority  under  the  power of
 eminent domain,  or taken in any manner for any public or quasi-public  use, so
 as to render (in Tenant's  reasonable  judgment) the  remaining  portion of the
 Premises unsuitable for the purposes intended hereunder, then Tenant shall give
 Landlord  written  notice  within  thirty (30) days of receiving  notice of the
 taking and the term of this Lease shall cease as of the day possession shall be
 taken by such public authority and Landlord shall make a pro rata refund of any
 prepaid  rent.  Subject to Section  12.2,  all damages  awarded for such taking
 under the power of eminent domain or any like  proceedings  shall belong to and
 be the property of Landlord,  Tenant hereby assigning to Landlord its interest,
 if any,  in said  award.  Further,  if all or any  material  part of the Office
 Complex  is taken by public  authority  under the power of eminent  domain,  or
 taken in any  manner for any public or  quasi-public  use,  so as to render any
 remaining portion of the Premises  unsuitable in Tenant's  reasonable  opinion,
 for the  purposes  intended  hereunder,  upon  delivery  of  possession  to the
 condemning  authority  pursuant to the proceedings,  Tenant may, at its option,
 terminate  this Lease as to the remainder of the Premises by written  notice to
 Landlord,  such  notice to be given to Landlord  within  thirty (30) days after
 Tenant  receives  notice  of the  taking.  Tenant  shall  not have the right to
 terminate this Lease pursuant to the preceding sentences unless the business of
 Tenant cannot in Tenant's  reasonable judgment be carried on with substantially
 the same utility and efficiency in the remainder of the Premises. Any notice of
 termination  shall  specify  the date not more than  sixty  (60) days after the
 giving of such notice as the date for such termination.

          Section 12.2 Tenant's Participation.  Provisions in this Article 12 to
 the  contrary  notwithstanding,  Tenant  shall  have the  right to prove in any
 condemnation  proceedings  and to receive any separate  award which may be made
 for damages to or condemnation of Tenant's movable trade fixtures and equipment
 and for moving expenses;  provided,  however, Tenant shall in no event have any
 right to  receive  any  award  for its  interest  in this  Lease or for loss of
 leasehold.  Provisions in this Article 12 to the contrary  notwithstanding,  in
 the event of a partial  condemnation  of the Office Complex or the Premises and
 this Lease is not  terminated,  Landlord  shall,  at its sole cost and expense,
 promptly  restore the Premises and Office  Complex to a complete  architectural
 unit as near as possible to that condition  which existed prior to such partial
 condemnation  and the Base Rent  provided for herein during the period from and
 after the date of delivery of possession  pursuant to such  proceedings  to the
 termination  of this  Lease  shall be reduced  to the fair  market  rent of the
 Premises after such taking.

                                   ARTICLE 13
                              SURRENDER OF PREMISES

          Section 13.1 Surrender of  Possession.  On the last day of the term of
 this  Lease,  or on the sooner  termination  thereof,  Tenant  shall  peaceably
 surrender the Premises in good  condition and repair  consistent  with Tenant's
 duty to make repairs as herein provided,  reasonable wear and tear and casualty
 loss excluded. On or before the last day of the term of this Lease, or the date
 of sooner  termination  thereof,  Tenant  shall,  at its sole cost and expense,
 remove all of its property and trade  fixtures and equipment  from the Premises
 which  Tenant is  required to remove  pursuant to the terms of this Lease.  All
 property  not  removed  within ten (10) days  following  receipt of notice from
 Landlord shall be deemed  abandoned.  Tenant hereby appoints Landlord its agent
 to remove all abandoned  property of Tenant from the Premises upon  termination
 of this Lease and to cause its transportation and storage for Tenant's benefit,
 all at the sole cost and risk of Tenant  and  Landlord  shall not be liable for
 damage,  theft,  misappropriation  or loss  thereof and  Landlord  shall not be
 liable in any manna in respect  thereto.  Tenant shall pay all reasonable costs
 and expenses of such removal, transportation and storage.

          Tenant  shall  reimburse  Landlord  upon  demand  for  any  reasonable
 expenses  incurred by Landlord  with  respect to  removal,  transportation,  or
 storage of abandoned  property and with respect to restoring  said  Premises to
 good order,  condition  and repair.  All  alterations,  additions and fixtures,
 other than those which  Tenant may, or is required to,  remove  pursuant to the
 terms of this  Lease,  shall  remain  the  property  of  Landlord  and shall be
 surrendered  with  the  Premises  as a  part  thereof.  Tenant  shall  promptly
 surrender all keys for the Premises to Landlord at the place then fixed for the
 payment of rent and shall inform Landlord of combinations on any vaults,  locks
 and safes left on the Premises.  NOTWITHSTANDING  ANY PROVISION TO THE CONTRARY
 CONTAINED  HEREIN,  IN NO EVENT SHALL  TENANT BE LIABLE FOR,  OR  OTHERWISE  BE
 OBLIGATED TO PAY,  LOST ACTUAL OR POTENTIAL  PROFITS OR

<PAGE>

 ANY OTHER DAMAGES OF A CONSEQUENTIAL, SPECULATIVE, SPECIAL, PUNITIVE OR SIMILAR
 NATURE.  THE TERMS OF THIS SECTION 13.1 SHALL SURVIVE THE EXPIRATION OR EARLIER
 TERMINATION OF THIS LEASE.

          Section 13.2 Tenant Retaining Possession.  In the event Tenant remains
 in possession of the Premises after  expiration of this Lease,  and without the
 execution of a new lease,  but with  Landlord's  written  consent,  it shall be
 deemed to be occupying the Premises as a tenant from month to month, subject to
 all the  provisions,  conditions  and  obligations of this Lease insofar as the
 same can be applicable to a month-to-month  tenancy,  except that the Base Rent
 shall be 150% of the then  current  Base  Rent for the  Premises.  In the event
 Tenant remains in possession of the Premises after expiration of this Lease and
 without the execution of a new lease and without  Landlord's  written  consent,
 Tenant shall be deemed to be occupying the Premises  without claim of right and
 Tenant  shall pay a charge for each day of  occupancy an amount equal to double
 the Base Rent and Additional Rant (on a daily basis) then due under this Lease.
 NOTWITHSTANDING  ANY PROVISION TO THE CONTRARY  CONTAINED  HEREIN,  IN NO EVENT
 SHALL TENANT BE LIABLE FOR, OR  OTHERWISE  BE OBLIGATED TO PAY,  LOST ACTUAL OR
 POTENTIAL  PROFITS  OR  ANY  OTHER  DAMAGES  OF A  CONSEQUENTIAL,  SPECULATIVE,
 SPECIAL, PUNITIVE OR SIMILAR NATURE.

                                   ARTICLE 14
                                DEFAULT OF TENANT

          Section 14.1 Events of Default.  The  occurrence of any one or more of
 the  following  events (in this Article  sometimes  called  "Event of Default")
 shall constitute a default and breach of this Lease by Tenant:

          (a) If Tenant  fails to pay any Base Rent or  Additional  Rant payable
 under this Lease or fails to pay any  obligation  required to be paid by Tenant
 when and as the same shall become due and payable,  and such default  continues
 for a period of ten (10) days after receipt of written  notice thereof given by
 Landlord to Tenant.

          (b) If Tenant fails to perform any of Tenant's nonmonetary obligations
 under  this  Lease for a period of thirty  (30) days  after  receipt of written
 notice from  Landlord;  provided that if more time is required to complete such
 performance,   Tenant  shall  not  be  in  default  if  Tenant  commences  such
 performance within the thirty (30) day period and thereafter diligently pursues
 its completion within ninety (90) days. However, Landlord shall not be required
 to give such notice if Tenant's  failure to perform  constitutes  a non-curable
 breach of this Lease.  The notice  required by this  subsection  is intended to
 satisfy any and all notice  requirements  imposed by law on Landlord and is not
 in addition to any such requirement.

          (c)  If  Tenant,  by  operation  of  law or  otherwise,  violates  the
 provisions of Article 10 hereof relating to assignment,  sublease,  mortgage or
 other  transfer of Tenant's  interest in this Lease or in the Premises and such
 violation continues for ten (10) days after written notice from Landlord.

          (d) If  default  shall be made by  Tenant  in  keeping,  observing  or
 performing any of the terms contained in this Lease,  other than those referred
 to in  Subparagraphs  (a) and (c) of this Section  14.1,  and such default will
 result in Landlord being subject to criminal liability,  and such default shall
 continue after written  notice thereof given by Landlord to Tenant,  and Tenant
 fails to thereafter  proceed  timely and promptly with all due diligence and in
 good  faith to cure the same and  thereafter  to  prosecute  the curing of such
 default with all due  diligence,  it being  intended that in connection  with a
 default which exposes Landlord to criminal  liability that Tenant shall proceed
 immediately to cure or correct such condition with  continuity and with all due
 diligence and in good faith.

          Section 14.2 Landlord's  Remedies.  Upon the occurrence of an Event of
 Default by Tenant, and at any time thereafter, with or without notice or demand
 and  without  limiting  Landlord in the  exercise of any right or remedy  which
 Landlord  may have,  Landlord  shall be entitled to the rights and remedies set
 forth below.

          (a) Termination of Possession.  Terminate Tenant's right to possession
 of the Premises by  exercising  self-help or any other lawful  means,  in which
 case  the  Lease  shall  terminate  and  Tenant  shall  immediately   surrender
 possession of the Premises to Landlord.  In such event, Landlord shall have the
 immediate  right to reenter  and  remove all  persons  and  property,  and such
 property  may be removed and stored in a public  warehouse  or elsewhere at the
 cost of, and for the account of Tenant, all without service of notice or resort
 to legal  process and without  being  deemed  guilty of  trespass,  or becoming
 liable  for any loss or damage  which may be  occasioned  thereby,  except  for
 Landlord's gross negligence or willful  misconduct.  In the event that Landlord
 shall elect to so  terminate  this Lease,  then  Landlord  shall be entitled to
 recover  from  Tenant all  damages  incurred  by Landlord by reason of Tenant's
 default, including:

                  (i)  The  equivalent  of the  amount  of  the  Base  Rent  and
 Additional Rent which would be payable under this Lease by Tenant if this Lease
 were still in effect, less

<PAGE>

                  (ii) The net proceeds of any commercially reasonable reletting
 affected  pursuant to the provisions of Section 14.2(e) hereof  after deducting
 all of  Landlord's  reasonable  expenses  in  connection  with such  reletting,
 including,  without limitation,  all repossession costs, brokerage commissions,
 legal expenses,  reasonable  attorneys' fees, alteration costs, and expenses of
 preparation of the Premises, or any portion thereof, for such reletting.

                  Tenant shall pay such current damages in the amount determined
 in  accordance  with the terms of this  Section  14.2 as set forth in a written
 statement   thereof   from   Landlord   to  Tenant   (hereinafter   called  the
 "Deficiency"),  to  Landlord in monthly  installments  on the days on which the
 Rent  would  have been  payable  under  this  Lease if this Lease were still in
 effect,  and  Landlord  shall be entitled to recover  from Tenant each  monthly
 installment of the Deficiency as the same shall arise.

          (b) Damages.  At any time after an Event of Default and termination of
 this Lease, whether or not Landlord shall have collected any monthly Deficiency
 as set forth in Section  14.2,  Landlord  shall be  entitled  to  recover  from
 Tenant, in lieu of continuing  monthly payments for the Deficiency,  and Tenant
 shall pay to  Landlord,  on  demand,  as and for  final  damages  for  Tenant's
 default,  an amount equal to the  difference  between the then present worth of
 the aggregate of the Base Rent and Additional  Rent and any other charges to be
 paid by Tenant  hereunder for the remainder of the term of this Lease,  and the
 then present worth of the then aggregate  fair and reasonable  fair market rent
 of the Premises for the same period,  net of the costs and expenses  referenced
 in Section  14.2(a)(ii).  In the  computation of present worth, a discount rate
 equal to the  discount  rate of the Federal  Reserve  Bank of New York plus one
 percent (1%) shall be employed. If the Premises, or any portion thereof,  shall
 be relet by Landlord on commercially reasonable terms for the unexpired term of
 this Lease, or any part thereof,  before  presentation of proof of such damages
 to any court,  commission  or tribunal,  the amount of Rent  reserved upon such
 reletting  shall,  prima facie, be the fair and reasonable fair market rent for
 the  part  or the  whole  of the  Premises  so  relet  during  the  term of the
 reletting. Nothing herein contained or contained in Section 14.2 shall limit or
 prejudice  the right of Landlord to prove for and obtain,  as damages by reason
 of such  expiration or  termination,  an amount equal to the maximum allowed by
 any  statute  or rule of law in  effect at the time  when,  and  governing  the
 proceedings in which, such damages are to be proved, whether or not such amount
 be  greater,  equal to or less than the amount of the  difference  referred  to
 above.

          (c) Reentry and Removal. Upon the occurrence of an Event of Default by
 Tenant,  Landlord shall also have the right,  with or without  terminating this
 Lease,  to reenter the  Premises to remove all  persons and  property  from the
 Premises.  Such  property  may be removed and stored in a public  warehouse  or
 elsewhere at the cost of and for the account of Tenant. If Landlord shall elect
 to reenter the  Premises,  Landlord  shall not be liable for,  and Tenant shall
 indemnify  and hold Landlord  harmless  for,  damages by reason of such reentry
 except for Landlord's gross negligence or willful misconduct.

          (d) No  Termination;  Recovery of Rent.  If Landlord does not elect to
 terminate this Lease as provided in this Section 14.2,  then Landlord may, from
 time to time,  recover all Rent as it becomes due under this Lease. At any time
 thereafter,  Landlord may elect to terminate this Lease and to recover  damages
 to which Landlord is entitled pursuant to this Article 14.

          (e) Reletting the Premises. In the event that Landlord should elect to
 terminate this Lease,  Landlord shall use  commercially  reasonable  efforts to
 relet the  Premises on  commercially  reasonable  terms,  in which event it may
 execute any new lease in its own name.  Tenant hereunder shall have no right or
 authority  whatsoever to collect any Rent from such tenant. The proceeds of any
 such reletting shall be applied as follows:

                  (i) First, to the payment of any indebtedness  other than Rent
 due hereunder from Tenant to Landlord,  including but not limited to reasonable
 storage  charges or  reasonable  brokerage  commissions  owing  from  Tenant to
 Landlord as the result of such reletting;

                  (ii)  Second,  to the  payment  of the  reasonable  costs  and
 expenses of reletting the  Premises,  including  alterations  and repairs which
 Landlord, in its sole discretion, reasonably deems necessary in connection with
 such  re-letting  and  reasonable  attorneys'  fees  incurred  by  Landlord  in
 connection with the retaking of the said Premises and such reletting;

                  (iii) Third,  to the payment of Rent and other charges due and
 unpaid hereunder, and

                  (iv) under this Lease.

          Fourth,  to the  payment of future Rent and other  damages  payable by
Tenant

                  The parties  hereto shall,  and they hereby do, waive trial by
 jury in any  action,  proceeding,  or  counterclaim  brought  by  either of the
 parties hereto against the other on any matters

<PAGE>

whatsoever  arising  out of,  or in any way  connected  with,  this  Lease,  the
relationship  of Landlord and Tenant,  Tenant's use or occupancy of the Premises
and/or Of  Office  Complex,  and/or  claim or  injury  or  damage.  In the event
Landlord  commences any proceeding to enforce this Lease or the  Landlord/Tenant
relationship  between  the  parties  or for  nonpayment  of Rent (of any  nature
whatsoever)  or  additional  monies due  Landlord  from Tenant under this Lease,
Tenant will not interpose any  counterclaim of whatever nature or description in
any such  proceedings.  In the event Tenant must,  because of  applicable  court
rules,  interpose  any  counterclaim  or other  claim  against  Landlord in such
proceedings,  Landlord and Tenant  covenant  and agree that,  in addition to any
other lawful remedy of Landlord,  upon motion of Landlord,  such counterclaim or
other  claim  asserted  by  Landlord  shall  be  severed  out of the  proceeding
instituted by Landlord  (and, if necessary,  transferred to a court of different
jurisdiction), and the proceedings,  instituted by Landlord may proceed to final
judgment  separately and apart from and without  consolidation with or reference
to the status of each counterclaim or any other claim asserted by Tenant.

          Section 14.3 Written  Notice of Termination  Required.  Landlord shall
 not be  deemed  to have  terminated  this  Lease  and  the  Tenant's  right  to
 possession of the  leasehold or the liability of Tenant to pay Rent  thereafter
 to accrue or its  liability  for damages  under any of the  provisions  hereof,
 unless Landlord shall have notified Tenant in writing that it has so elected to
 terminate  this  Lease.  Tenant  covenants  that the service by Landlord of any
 notice pursuant to the applicable  unlawful  detainer  statutes of the state in
 which the Office  Complex is located and the Tenant's  surrender of  possession
 pursuant to such notice  shall not (unless  Landlord  elects to the contrary at
 the time of, or at any time subsequent to the service of, such notice, and such
 election  be  evidenced  by a  written  notice  to  Tenant)  be  deemed to be a
 termination of this Lease or of Tenant's right to possession thereof.

          Section 14.4 Remedies Cumulative;  No Waiver. All rights,  options and
 remedies of Landlord  contained in this Lease shall be construed and held to be
 cumulative,  and no one of them shall be exclusive  of the other,  and Landlord
 shall  have the right to pursue  any one or all of such  remedies  or any other
 remedy  or relief  which may be  provided  at law or in equity  whether  or not
 stated in this Lease,  including,  without limitation,  the right of self help,
 but subject to all applicable provisions of this Lease.

          No waiver by Landlord or Tenant  ("Waiving  Party") of a breach of any
 of the  terms,  covenants  or  conditions  of this  Lease  by the  other  party
 ("Breaching Party") shall be construed or held to be a waiver of any succeeding
 or  preceding  breach  of the same or any other  term,  covenant  or  condition
 therein  contained.  No waiver of any default of the Breaching  Party hereunder
 shall be implied from any  omission by the Waiving  Party to take any action on
 account of such default if such default persists or is repeated, and no express
 waiver shall affect default other than as specified in said waiver. The consent
 or  approval  by the  Waiving  Party  to or of any act by the  Breaching  Party
 requiring the Waiving  Party's consent or approval shall not be deemed to waive
 or render  unnecessary  the  Waiving  Party's  consent  to or  approval  of any
 subsequent similar acts by the Breaching Party.

          Section  14.5 Legal  Costs.  Tenant  shall  reimburse  Landlord,  upon
 demand,  for any costs or expenses  incurred by Landlord in connection with any
 Event of Default of Tenant  under this Lease,  whether or not suit is commenced
 or judgment entered.  Such costs shall include  reasonable legal fees and costs
 incurred  for  the  negotiation  of a  settlement,  enforcement  of  rights  or
 otherwise.  Furthermore,  if any action for an Event of Default to enforce  the
 provisions of this Lease is commenced,  the court in such action shall award to
 the party in whose favor a judgment is entered a reasonable  sum as  attorneys'
 fees and  costs.  Such  attorneys'  fees and costs  shall be paid by the losing
 party in such action at such time as it is no longer subject to appeal.  Tenant
 shall also  indemnify  Landlord  against and hold  Landlord  harmless  from all
 costs, expenses, demands and liability incurred by Landlord if Landlord becomes
 or is made a party to any claim or action (a)  instituted by Tenant,  or by any
 third  party  against  Tenant;  (b) for  foreclosure  of any lien for  labor or
 material furnished to or for Tenant or such other person; (c) otherwise arising
 out of or resulting from any act or transaction of Tenant or such other person;
 or  (d)  necessary  to  protect  Landlord's  interest  under  this  Lease  in a
 bankruptcy proceeding,  or other proceeding under Title 11 of the United States
 Code, as amended. Tenant shall defend Landlord against any such claim or action
 at Tenant's  expense  with  counsel  reasonably  acceptable  to Landlord or, at
 Landlord's  election,  Tenant shall reimburse Landlord for any reasonable legal
 fees or costs incurred by Landlord in any such claim or action.

          In addition,  Tenant shall pay Landlord's  reasonable  attorneys' fees
 incurred  in  connection  with  Tenant's  request  for  Landlord's  consent  in
 connection  with  any  act  which  Tenant  proposes  to do and  which  requires
 Landlord's consent.

          Section 14.6 Waiver of Damages for Reentry. Intentionally Deleted.

<PAGE>

          Section 14.7 Tenant  Self-Help.  Tenant may provide  Landlord  written
 notice if Landlord  fails to (i) comply with any of its repair and  maintenance
 obligations  under this Lease,  or (ii) comply with its  obligations to provide
 services under the terms of this Lease,  both subject to Unavoidable  Delay (as
 defined in the Work  Agreement).  Tenant's  written  notice  shall  specify the
 action required to be taken, demand that Landlord proceed with such action, and
 indicate  that Tenant may  perform on  Landlord's  behalf if Landlord  fails to
 timely  respond.  Landlord  shall,  within seven (7) days after receipt of such
 notice (or  immediately  after receipt of such notice if Landlord's  failure to
 comply  with  its  Lease  obligations  gives  rise to an  emergency),  commence
 investigation  of the cause of the asserted  problem.  Landlord  shall promptly
 commence such repair or  replacement,  or other action,  and diligently  pursue
 completion thereof. In the event that (x) Landlord fails to respond to Tenant's
 notice  within the  foregoing  seven (7) day  period,  or (y) fails to promptly
 commence,  diligently  pursue and  ultimately  complete same within thirty (30)
 days  of  commencement  (or  such  shorter  or  longer  period  of  time  as is
 commercially  reasonable  under  the  circumstances)  any  action  set forth in
 clauses (i) and (ii) above,  then, if the repair,  replacement  or other action
 required to be taken does not affect the structure of the Building and does not
 affect the  mechanical,  electrical,  plumbing or other base  building  systems
 then,  upon written  notice to Landlord,  Tenant shall have the right to effect
 such repair or  replacement,  or pursue such other action as may  reasonably be
 necessary in order to correct the  condition;  provided,  however,  in no event
 shall Landlord be liable for consequential or punitive damages.  Landlord shall
 reimburse  Tenant  on  demand  for all of the  reasonable  costs  and  expenses
 incurred by Tenant in connection with such foregoing  remedial  activities plus
 an  administrative  overhead charge equal to twenty percent (20%) of the actual
 cost of repair. Any repair, replacement or other work performed by Tenant shall
 be performed in a good and workmanlike manner and in strict compliance with any
 Federal,  state,  local and municipal laws, rules,  regulations and ordinances,
 and shall be performed by licensed and bonded  contractors  carrying  customary
 insurance  coverage,  which insurance  shall include  Landlord as an additional
 insured.  Notwithstanding anything to the contrary contained herein, no payment
 by Tenant shall be  construed  as a waiver of a default by Landlord  under this
 Section 14.7.

                                   ARTICLE 15
                             SUBORDINATION/ESTOPPEL

          Section  15.1  Lease  Subordinate.  This Lease  shall be  subject  and
 subordinate to any mortgage,  deed of trust or ground lease now encumbering the
 Premises, the Office Complex, the Property, or any portion thereof by Landlord,
 its  successors  or assigns.  The  foregoing  subordination  shall be effective
 without the necessity of the execution and delivery of any further  instruments
 on the  part of  Tenant  to  effectuate  such  subordination.  Provided  Tenant
 receives a non-disturbance agreement  substantially in the form attached hereto
 as Exhibit C, this Lease shall be further subject and subordinate to any future
 mortgages,  deeds of trust or ground leases and any  amendments,  replacements,
 renewals and extensions  thereof.  Tenant agrees at any time hereafter,  within
 fifteen (15) days  following  demand,  to execute and deliver any  instruments,
 releases, or other documents that may be reasonably required for the purpose of
 subjecting and subordinating this Lease, as above provided,  to the lien of any
 such mortgage,  deed of trust or ground lease, provided such documents shall be
 reasonably  acceptable to Tenant. It is agreed,  nevertheless,  that as long as
 Tenant is not in default in the payment of Base Rent,  Additional Rent, and the
 payment  of other  charges  to be paid by  Tenant  under  this  Lease,  and the
 performance  of all  covenants,  agreements  and  conditions to be performed by
 Tenant under this Lease  beyond any  applicable  notice and cure  period,  then
 neither  Tenant's right to quiet enjoyment  under this Lease,  nor the right of
 Tenant to continue to occupy the Premises and to conduct its business  thereon,
 in accordance with the terms of this Lease as against any Landlord,  mortgagee,
 trustee, or their successors or assigns shall be interfered with.

          Section 15.2  Attornment.  Subject to the terms of this Article 15, in
 the event the holder of any  mortgage,  deed of trust or ground  lease shall at
 any time elect to have this Lease  constitute a prior and superior  lien to its
 mortgage, deed of trust or ground lease, then, and in such event, upon any such
 holder or landlord notifying Tenant to that effect in writing, this Lease shall
 be deemed prior and superior in lien to such  mortgage,  deed of trust,  ground
 lease,  whether  this Lease is dated  prior or  subsequent  to the date of such
 mortgage,  deed of  trust  or  ground  lease  and  Tenant  shall  execute  such
 attornment agreement as may be reasonably requested by said holder or landlord,
 provided the form and content  thereof are reasonably  acceptable to Tenant and
 contain recognition and non-disturbance covenants satisfactory to Tenant.

          Section 15.3 Tenant's Notice of Default.  Tenant agrees,  provided the
 mortgagee,  ground  landlord or trust deed holder  under any  mortgage,  ground
 lease,  deed of trust or other  security  instrument  ("Mortgagee")  shall have
 notified  Tenant in writing (by the way of a notice of  assignment  of lease or
 otherwise)  of its address,  Tenant shall give such  Mortgagee,  simultaneously
 with delivery of notice to Landlord, by registered or certified mail, a copy of
 any such notice of default  served upon  Landlord.  Tenant  further agrees that
 said Mortgagee shall have the right to cure any alleged default during the same
 period that Landlord has to cure such default.

          Section 15.4 Estoppel  Certificates.  Landlord and Tenant shall,  each
 without  charge at any time and from  time to time,  within  fifteen  (15) days
 after written request by the other party,  but not

<PAGE>

 more frequently than two (2) times in any twelve month period,  certify, to the
 extent true, by written instrument,  duly executed,  acknowledged and delivered
 to any  mortgagee,  assignee  of a  mortgagee,  proposed  mortgagee,  or to any
 purchaser or proposed  purchaser,  or to any other person transacting  business
 with Landlord or Tenant and relating to the Premises:

          (a) That this Lease (and all guaranties,  if any) is unmodified and in
 full force and effect (or, if there have been  modifications,  that the same is
 in full force and effect, as modified, and stating the modifications);

          (b) The dates to which the Base Rent or Additional Rent have been paid
in advance;

          (c) Whether or not there are then existing any breaches or defaults by
 such party or the other party  known by such party under any of the  covenants,
 conditions,  provisions, terms or agreements of this Lease, and specifying such
 breach or default,  if any, or any setoffs or defenses  against the enforcement
 of any covenant,  condition,  provision, term or agreement of this Lease (or of
 any guaranties) upon the part of Landlord or Tenant (or any guarantor),  as the
 case may be, to be performed or complied with (and, if so,  specifying the same
 and the steps being taken to remedy the same); and

          (d) Such other  statements or certificates as Landlord,  Tenant or any
 mortgagee may reasonably request.

          It is the intention of the parties hereto that any statement delivered
 pursuant to this Section may be relied upon by any of such parties  transacting
 business with  Landlord or Tenant and relating to the Premises.  If Landlord or
 Tenant does not deliver  such  statement  to the  requesting  party within such
 fifteen (15) day period,  and such failure  continues  for five (5)  additional
 days  following  receipt of a second notice  stipulating  that such  continuing
 failure shall have the consequences set forth herein, the requesting party, and
 any applicable  party  transacting  business  relative to the Premises with the
 requesting  party, may conclusively  presume and rely upon the following facts:
 (i) that the terms and provisions of this Lease have not been changed except as
 otherwise  represented  by the requesting  party;  (ii) that this Lease has not
 been  canceled  or  terminated  and is in full  force  and  effect,  except  as
 otherwise  represented by the requesting  party; that the current amount of the
 Base Rent is as represented by the  requesting  party;  that there have been no
 subleases  or  assignments  of the Lease;  (iii) that not more than one month's
 Base  Rent or other  charges  have  been  paid in  advance;  and (iv)  that the
 requesting  party  is not in  default  under  the  Lease.  In such  event,  the
 non-requesting party shall be estopped from denying the truth of such facts.

                                   ARTICLE 16
                                  MISCELLANEOUS

          Section  16.1  Time is of the  Essence.  Time is of the  essence  with
 respect to the  performance  of every  provision of this Lease in which time of
 performance is a factor.

          Section  16.2  Memorandum  of Lease.  Upon not less than ten (10) days
 prior written request by either party,  the parties hereto agree to execute and
 deliver to each other a Memorandum Lease, in recordable form, setting forth the
 following:

          (a)     The date of this Lease;

          (b)     The parties to this Lease;

          (c)     The term of this Lease;

          (d)     The legal description of the Premises; and

          (e)     Such other matters reasonably  requested by Landlord or Tenant
                  to be stated therein.

          The cost of recording the  memorandum  and all taxes  related  thereto
 shall be at the expense of the requesting party. Upon the expiration or earlier
 termination  of this  Lease,  or upon  the  termination  of  Tenant's  right to
 possession of the Premises, Tenant shall execute and deliver to Landlord within
 ten  (10)  days  after  receipt  of  Landlord's  written  request  therefor,  a
 termination of such  memorandum of lease.  In the event Tenant fails to deliver
 such  termination of the memorandum of lease to Landlord upon the expiration of
 such ten (10) day period,  Landlord  shall be  permitted  to execute and record
 such termination,  and Tenant hereby appoints Landlord as its  attorney-in-fact
 to execute such  termination  on behalf of Tenant.  The terms and conditions of
 this Section 16.2 shall  survive the  expiration or early  termination  of this
 Lease.

          Section  16.3 Joint and Several  Liability.  All parties  signing this
 Lease as Tenant shall be jointly and severally  liable for all  obligations  of
 Tenant.

          Section 16.4 Broker.  Landlord and Tenant represent to each other that
 they have not dealt with any  brokers  in  connection  with this  Lease  except
 Julien J. Studley, inc. and The Charles E.

<PAGE>

 Smith Companies, who will be paid by Landlord pursuant to a separate agreement.
 Landlord and Tenant shall  indemnify and hold each other  harmless  against any
 claims for brokerage or other commissions  arising by reason of a breach of the
 aforesaid representation and warranty .

          Section 16.5 Notices.  All notices,  demands and requests  shall be in
 writing,  and shall be effectively served by forwarding such notice,  demand or
 request by certified or  registered  mail,  postage  prepaid,  or by commercial
 overnight courier service, or by hand delivery with signed receipts,  addressed
 as follows:

          (a) If addressed to Tenant:

          Stanford  Telecommunications,  Inc. (prior to the  Commencement  Date)
 1761 Business  Center Drive Suite 300 Reston,  Virginia 20190 Attn: Kim Kreider
 (after the Commencement Date: The Premises)

          with a copy to:

          Watt Tieder & Hoffer 7929 Westpark Drive,  Suite 400 McLean,  Virginia
 22102 Attn: John G. Lavoie, Esq.

          (b) If addressed to Landlord:

          Opus  East,  L.L.C.  6707  Democracy  Boulevard  Suite 5 10  Bethesda,
 Maryland 208

          with a copy to:

          Opus U.S.  Corporation  700 Opus  Center  9900  Bren Road  Minnetonka,
 Minnesota 55343 Attn: Dan F. Nicol, Esq.

          and

          Hazel & Thomas, P.C. 3110 Fairview Park Drive Suite 1400 Falls Church,
 Virginia 22042 Attn: Donna P. Shafer, Esq.

          or at  such  other  address  as  Landlord  and  Tenant  may  hereafter
 designate  by written  notice to the other  party.  The  effective  date of all
 notices shall be (i) three (3) days after the date of mailing if sent by United
 States  Postal  Service,  (ii) the  date of  delivery  if sent by a  nationally
 recognized  overnight courier service,  or (iii) the date of receipt if sent by
 hand delivery with signed receipts.

          Section  16.6  Landlord's  Agent.  All rights and remedies of Landlord
 under this Lease or that may be  provided by law may be executed by Landlord in
 its  own  name  individually,  or in the  name  of its  agent,  and  all  legal
 proceedings for the enforcement of any such rights or remedies, including those
 set forth in Article 14, may be commenced and  prosecuted to final judgment and
 execution by Landlord in its own name or in the name of its agent.

          Section  16.7 Quiet  Possession.  Landlord  covenants  and agrees that
 Tenant,  upon paying the Base Rent,  Additional  Rent and other charges  herein
 provided for and observing and keeping the covenants, agreements and conditions
 of this Lease on its part to be kept and performed,  shall lawfully and quietly
 hold,  occupy and enjoy the  Premises  during  the term of this  Lease  without
 hindrance or molestation by Landlord or by any person claiming under or through
 Landlord.

          Section 16.8  Successors  and Assigns.  The covenants  and  agreements
 herein  contained  shall  bind and inure to the  benefit of the  Landlord,  its
 successors and assigns, and Tenant and its permitted successors and assigns.

          Section  16.9  Severability.  If any term or  provision  of this Lease
 shall to any extent be held invalid or  unenforceable,  the remaining terms and
 provisions  of this  Lease  shall not be  affected  thereby,  but each term and
 provision  of this Lease  shall be valid and  enforced  to the  fullest  extent
 permitted by law. This Lease shall be construed and enforced in accordance with
 the laws of the state in which the Premises are located.

          Section 16.10 No Abandonment or Waste.  Tenant  covenants not to do or
 suffer any waste or damage or disfigurement or injury to the Premises or Office
 Complex.

          Section 16.11  Transfers by Landlord.  The term  "Landlord" as used in
 this Lease so far as  covenants  or  obligations  on the part of  Landlord  are
 concerned  shall be limited to mean and include only the owner or owners of the
 Office  Complex at the time in  question,  and in the event of any  transfer or
 transfers or  conveyances  the then grantor  shall be  automatically  freed and
 released (except to the extent otherwise provided in Section 16.20 hereof) from
 all  liability  accruing from and After the date of such transfer or conveyance
 as

<PAGE>

 respects the  performance of any covenant or obligation on the part of Landlord
 contained  in this  Lease to be  performed  so long as the  successor  landlord
 agrees  to  assume  the  original  landlord's  obligations  and a copy  of such
 instrument  is promptly  delivered  to Tenant.  It is intended  hereby that the
 covenants and obligations contained in this Lease on the part of Landlord shall
 be binding on the  Landlord,  its  successors  and assigns,  only during and in
 respect to their respective successive periods of ownership.

          In the event of a sale or conveyance by Landlord of the Office Complex
 or any part of the Office Complex,  the same shall operate to release  Landlord
 from any  future  liability  upon any of the  covenants  or  conditions  herein
 contained and in such event Tenant agrees to look solely to the  responsibility
 of the successor in interest of Landlord in and to this Lease. This Lease shall
 not be affected by any such sale or conveyance,  and Tenant agrees to attorn to
 the  purchaser or grantee,  which shall be  personally  obligated on this Lease
 only so long as it is the owner of  Landlord's  interest  in and to this Lease.
 Notwithstanding  anything to the  contrary  contained  in this  Section  16.11,
 Landlord shall not assign its interest in this Lease prior to the  Commencement
 Date without the prior written consent of Tenant.

          Section  16.12  Headings.  The  marginal  or topical  headings  of the
 several articles and sections are for convenience only and do not define, limit
 or construe the contents of said articles and sections.

          Section 16.13 Written  Agreement.  All  preliminary  negotiations  are
 merged  into and  incorporated  in this Lease,  except for  written  collateral
 agreements executed contemporaneously herewith.

          Section  16.14  Modifications  or  Amendments.  This Lease can only be
 modified or amended by an agreement in writing signed by the parties hereto. No
 receipt of money by Landlord from Tenant or any other person after  termination
 of this Lease or after the service of any notice or after the  commencement  of
 any  suit,  or after  final  judgment  for  possession  of the  Premises  shall
 reinstate, continue or extend the term of this Lease or affect any such notice,
 demand or suit, or imply consent for any action for which Landlord's consent is
 required,  unless  specifically  agreed to in writing by Landlord.  Any amounts
 received by Landlord may be  allocated to any specific  amounts due from Tenant
 to Landlord as Landlord determines.

          Section  16.15  Landlord  Control.  Landlord  shall  have the right to
 temporarily  close any portion of the building  area or land area to the extent
 as may, in Landlord's  reasonable opinion, be necessary to prevent a dedication
 thereof or the accrual of any rights to any person or the public therein.

          Section 16.16  Utility  Easement.  Provided  such does not  materially
 interfere with Tenant's  business or reduce the size or utility of the Premises
 as contemplated by this Lease,  Tenant shall permit Landlord (or its designees)
 to erect, use, maintain, replace and repair pipes, cables, conduits,  plumbing,
 vents,  and  telephone,  electric  and other wires or other  items,  in, to and
 through the  Premises,  as and to the extent that Landlord may now or hereafter
 deem necessary or appropriate  for the proper  operation and maintenance of the
 Office Complex.

          Section 16.17 Not Binding Until Properly Executed. Employees or agents
 of  Landlord  have no  authority  to make or  agree  to make a lease  or  other
 agreement  or  undertaking  in  connection  herewith.  The  submission  of this
 document  for  examination  does  not  constitute  an  offer  to  lease,  or  a
 reservation of, or option for, the Premises.  This document  becomes  effective
 and binding only upon the execution and delivery  hereof by the proper officers
 of Landlord and by Tenant.  Tenant  confirms  that Landlord and its agents have
 made no  representations or promises with respect to the Premises or the making
 of or entry into this Lease except as in this Lease  expressly  set forth,  and
 agrees that no claim or liability shall be asserted by Tenant against  Landlord
 for,  and  Landlord   shall  not  be  liable  by  reason  of,   breach  of  any
 representations  or promises not  expressly  stated in this Lease.  This Lease,
 except for the  Building  Rules and  Regulations,  in respect to which  Section
 16.18 of this  Article  shall  prevail,  can be  modified  or  altered  only by
 agreement in writing between landlord and Tenant, and no act or omission of any
 employee  or agent  of  Landlord  shall  alter,  change  or  modify  any of the
 provisions hereof.

          Section 16.18  Building Rules and  Regulations.  Tenant shall perform,
 observe  and  comply  with the  Building  Rules and  Regulations  of the Office
 Complex as set forth below, with respect to the safety, care and cleanliness of
 the  Premises  and the  Office  Complex,  and the  preservation  of good  order
 thereon,  and, upon written  notice  thereof to Tenant,  Tenant shall  perform,
 observe,  and comply with any changes,  amendments or additions thereto as from
 time to time shall be established and deemed  advisable by Landlord for tenants
 of the Office  Complex.  Notwithstanding  the foregoing,  in no event shall any
 amendments or revisions to the Rules and  Regulations  change or alter Tenant's
 obligations  or rights  under  this  Lease,  and in the event of a  discrepancy
 between the Rules and Regulations and the Lease, the Lease shall govern.

<PAGE>

          Section  16.19  Compliance  with Laws and Recorded  Covenants.  Tenant
 shall  not use the  Premises  or  permit  anything  to be done in or about  the
 Premises which will, in any way, conflict with any law,  statute,  ordinance or
 governmental  rule or regulation now in force or which may hereafter be enacted
 or  promulgated.  Tenant shall,  at its sole cost and expense,  promptly comply
 with all laws, statutes,  ordinances and governmental rules and regulations now
 in force or which may hereafter be in force,  and with the  requirements of any
 fire insurance  underwriters or other similar body now or hereafter constituted
 relating to or affecting  the  condition,  use or  occupancy  of the  Premises.
 Tenant  shall  use  the  Premises  and  comply  with  any  recorded  covenants,
 conditions,  and restrictions  affecting the Premises and the Office Complex as
 of the  commencement  of the Lease or which are recorded  during the Lease term
 following notice to and acceptance by Tenant.

          Except as specifically  provided in the Work  Agreement,  Tenant shall
 have the  responsibility  to  comply  with the  requirements  of the ADA in the
 Premises only after the Commencement  Date. As used in this Lease,  "ADA" shall
 mean the Americans with  Disabilities Act of 1991, 42 U.S.C. ss. 12.101 et seq.
 and all  regulations  applicable  thereto  promulgated  as of the  date  hereof
 (collectively, "ADA").

          Section 16.20  Obligations  Survive  Termination.  All  obligations of
 Landlord  and Tenant  hereunder  not fully  performed as of the  expiration  or
 earlier  termination  of the term of this Lease shall survive the expiration or
 earlier  termination of the term hereof,  including,  without  limitation,  all
 payment or  repayment/refund  obligations  with respect to Operating  Expenses,
 insurance  premiums,  and Real Estate Taxes and all obligations  concerning the
 condition of the Premises.

          Section 16.21 Tenant's Waiver. Intentionally Deleted.

          Section 16.22 Authorization. Landlord and Tenant shall furnish to each
 other, within ten (10) business days of written request from the other party, a
 corporate  resolution,  proof  of  due  authorization  of  partners,  or  other
 appropriate and reasonable  documentation  evidencing the due  authorization to
 enter into this Lease.

          Section 16.23 No Partnership or Joint Venture. This Lease shall not be
 deemed or construed to create or establish any  relationship  or partnership or
 joint  venture or similar  relationship  or  arrangement  between  Landlord and
 Tenant hereunder.

          Section 16.24 Landlord's Right to Substitute  Premises.  Intentionally
 Deleted.

          Section 16.25 Tenant's  Obligation to Pay Miscellaneous  Taxes. Tenant
 shall  pay,  prior to  delinquency,  all  taxes  assessed  or  levied  upon its
 occupancy of the Premises, or upon the trade fixtures,  furnishings,  equipment
 and all other  personal  property of Tenant  located in the Premises,  and when
 possible  Tenant shall cause such trade  fixtures.  furnishings,  equipment and
 other personal  property to be assessed and billed separately from the property
 of Landlord.  In the event any or all of Tenant's trade fixtures,  furnishings,
 equipment or other personal  property,  or Tenant's  occupancy of the Premises,
 shall be assessed and taxed with the property of Landlord,  Tenant shall pay to
 Landlord  its share of such taxes  within  thirty  (30) days after  delivery to
 Tenant by Landlord of a statement in writing  setting  forth the amount of such
 taxes applicable to Tenant's personal property.

          Section 16.26 Signs. In addition to the signs shown on the Final Plans
 and  Specifications,  Tenant  may erect  additional  signs on the  exterior  or
 interior of the Building or on the landscaped area adjacent  thereto,  provided
 that such sign or signs are  acceptable  to Landlord in  Landlord's  reasonable
 discretion,  and such  signs (a) do not cause  any  structural  damage or other
 damage  to the  Building;  (b) do not  violate  applicable  governmental  laws,
 ordinances,  rules or regulations; (c) do not violate any existing restrictions
 affecting the Premises;  and (d) are compatible  with the  architecture  of the
 Building and the landscaped area adjacent thereto. Landlord further agrees that
 Tenant's name and the names of its key  employees  shall be listed on the lobby
 directory of the Premises without additional cost to Tenant.

          Section 16.27 Exhibits. The following are made a part hereof, with the
 same force and effect as if specifically set forth herein:

        (a)  Exhibit  A - Legal  Description  of the Land 
        (b)  Exhibit  B - Work Agreement
        (c)  Exhibit  C - Non  Disturbance  Agreement  
        (d)  Exhibit  D - Intentionally  Deleted
        (e)  Exhibit  E - Rules and Regulations 
        (f)  Exhibit  F - Base Building

          Section 16.28 Landlord's Limited Liability. Anything contained in this
 Lease to the contrary notwithstanding, but subject to the terms of this Section
 16.28,  from and after the Final



<PAGE>

 Completion  of the Building (as defined in the Work  Agreement),  Tenant agrees
 that  Tenant  shall look  solely to the estate and  property of Landlord in the
 Premises or the proceeds  from the sale,  transfer,  foreclosure,  refinance or
 conversion thereof, and insurance and condemnation  proceeds for the collection
 of any judgment or other  judicial  process  requiring  the payment of money by
 Landlord  for any  default or breach by  Landlord  under this  Lease,  subject,
 however,  to the prior rights of any mortgagee or Landlord of the Premises.  No
 other assets of Landlord or any partners,  shareholders, or other principals of
 Landlord shall be subject to levy,  execution or other judicial process for the
 satisfaction   of  Tenant's  claim.  In  the  event  Tenant  obtains  a  final,
 non-appealable  judgment  against  Landlord,  but the  estate and  property  of
 Landlord in the  Premises  are not  sufficient  to satisfy the  judgment,  then
 Tenant may, at its option,  offset the  judgment  against Rent coming due under
 the Lease and, if the judgment  remains  unsatisfied as of the end of the term,
 extend the term and continue to offset its Rent obligations.

          Section 16.29 Rooftop Rights.  Subject to Landlord's  review and prior
 written  approval,  which shall not be  unreasonably  withheld,  and subject to
 compliance with applicable laws and all  restrictions of record,  Tenant shall,
 at all  times  during  the  term of  this  Lease,  have  the  right  to use the
 Building's  shafts  for  conduits  between  the  Premises  and the  roof of the
 Building for the  installation and maintenance of conduits and cables to extend
 to  communications  equipment  located or to be  located on the roof.  Further,
 subject to availability of space and Landlord's  prior written approval (not to
 be  unreasonably  withheld,  conditioned  or  delayed)  of the size,  location,
 esthetics,  and  height  thereof,  Tenant  shall have the right at all times to
 install  and  operate   microwave   or  satellite   dishes  or  other   antenna
 communications  system on the roof of the Building  subject to compliance  with
 all applicable laws and all restrictions of record.  Landlord's approval rights
 shall include  without  limitation,  review and approval of the  procedures and
 personnel with respect to  installation,  maintenance,  and  operation.  Tenant
 shall not be obligated to pay rental for any equipment  which may be installed.
 Use of such roof space  shall be subject to  reasonable  rules and  regulations
 specified  by Landlord and to Tenant's  obtaining  such  insurance  coverage as
 Landlord shall reasonably  require. At the expiration or earlier termination of
 the Lease, Tenant, at its expense,  shall remove the communications  equipment.
 Any work  required to restore the roof or any other part of the  Building  from
 any damage occasioned by the installation,  maintenance,  relocation or removal
 of the  communications  equipment  shall  be  borne  by  Tenant.  Tenant  shall
 indemnify  and hold  harmless  Landlord  from  all  costs,  damages,  expenses,
 liabilities,  and suits,  including reasonable  attorneys' fees,  occasioned by
 Tenant's  installation,   maintenance,   relocation,  removal  or  use  of  the
 communications equipment,  including without limitation, any damage to property
 and/or  injury  or death  to  persons  caused  thereby  from the  installation,
 maintenance,  and operation.  The installation,  maintenance,  relocation,  and
 removal of the  communications  equipment will be performed in such a manner as
 not to  interfere  with  the  operation  of the  Building.  All  communications
 equipment  shall be  maintained by the Tenant at Tenant's sole cost and expense
 in good and safe condition.  The communications  equipment shall be used solely
 by Tenant in the ordinary  course of its  business,  and Tenant shall not allow
 any parties  other than  Tenant to use such  equipment  or the rooftop  without
 Landlord's prior written consent,  not be unreasonably  withheld.  The terms of
 this Section 16.29 shall survive the expiration or earlier  termination of this
 Lease.

          Section  16.30  Parking.  Notwithstanding  anything  to  the  contrary
 contained in this Lease, if any event or action or omission by Landlord renders
 the parking areas for the Building  and/or  Tenant's  parking space  allocation
 (including  reserved  spaces,  if any)  for  whatever  reason  inaccessible  or
 unusable,  or which causes the number of parking  spaces for the Premises to be
 reduced below applicable  Loudoun County code  requirements  (which reasons may
 include but are not limited to repairs, maintenance, casualty, condemnation, or
 displacement  or  dislocation  caused by future  construction),  Landlord shall
 immediately  provide substitute parking areas for Tenant's use and its invitees
 which  areas  shall  (i)  cause no net  reduction  in  Tenant's  parking  space
 allocation,  (ii) be similarly  convenient  in terms of  location,  quality and
 safety,  and (iii) except in the case of an  emergency,  be designated by prior
 written  notice to Tenant with the exact  location of such  substitute  parking
 areas subject to Tenant's approval not to be unreasonably withheld, conditioned
 or delayed. In no event shall Landlord charge any separate or additional charge
 or rent for use of the parking areas located on the Property from time to time.

          Section 16.31 Measurement of Premises. As used in this Lease, the term
 "net  rentable  area"  shall  mean the  number of square  feet as  measured  in
 accordance  with the  June,  1996  Building  Owners  and  Managers  Association
 Standard Method of Measurement.

          Section 16.32 Renewal Option. Tenant shall have the right to renew and
 extend the term of this Lease for the Renewal  Term (herein so called) upon and
 subject to the following terms and conditions:

          Tenant may  extend  this  Lease for one (1)  Renewal  Term of five (5)
 years by  Tenant's  giving  Landlord a Renewal  Notice no more than twelve (12)
 months and no less than nine (9) months prior to the  expiration of the initial
 term. Such Renewal Term shall commence immediately

<PAGE>

 upon the  expiration  of the initial  term and upon  exercise  of such  renewal
 option the expiration date of the term shall automatically  become the last day
 of the Renewal  Term. If Tenant does not renew the Lease in a timely manner for
 the Renewal Term,  then Tenant's rights with respect to such Renewal Term shall
 expire and be of no further force and effect.

          The exercise by Tenant of the renewal  option set forth herein must be
 made, if at all, by delivery of the Renewal Notice to Landlord on or before the
 dates set forth above.  Once Tenant shall exercise such renewal option,  Tenant
 may not  thereafter  revoke such  exercise.  At Landlord's  election,  Tenant's
 renewal  option shall  terminate and be of no further force or effect if (i) an
 Event of Default exists under the Lease at the time Tenant attempts to exercise
 its renewal option, (ii) Tenant defaults under any provision of the Lease after
 exercising its renewal option and such default  continues beyond any applicable
 cure  period  provided  in the Lease,  (iii) at any time during the Term of the
 Lease,  as extended,  Tenant assigns the Lease to a third party, or (iv) at the
 time Tenant  attempts to exercise its renewal  option,  Tenant has subleased or
 has demonstrated an intention to sublease more than fifty percent (50%) or more
 of the Premises to an unrelated third party.

          Tenant shall take the Premises "as is" for the Renewal Term and, other
 than as may then be a component  of the "Fair  Market  Rental  Rate",  Landlord
 shall have no  obligation  to make any  improvements  or  alterations  to same;
 provided,  however,  Landlord  shall  comply  with its repair  and  maintenance
 obligations as set forth in this Lease.

          Annual Base Rent for the Renewal Term shall be the "Fair Market Rental
 Rate"  multiplied  by the  number of square  feet of net  rentable  area in the
 Building,  but in no event  less than the Base Rent for the last  Lease Year of
 the initial term.  Within  thirty (30) days after the date of Tenant's  Renewal
 Notice, Landlord and Tenant shall endeavor in good faith to agree upon the Fair
 Market  Rental Rate  applicable  to the  Building  for each year of the Renewal
 Term. In the event Landlord and Tenant are unable to agree upon the Fair Market
 Rental Rate within the  aforesaid  thirty (30) day period,  Landlord and Tenant
 shall each  select a broker to  determine  the Fair  Market  Rental Rate within
 thirty-five  (35) days after the date of the Renewal Notice.  Each broker shall
 make  an  independent  determination  of the  Fair  Market  Rental  Rate of the
 Building  for each year of the Renewal  Term.  If the two brokers so  appointed
 agree on the Fair Market  Rental Rate for each year of the Renewal  Term within
 forty (40) days after the date of the Renewal  Notice,  the Fair Market  Rental
 Rate shall be the amount determined by them.

          If the two brokers so appointed do not agree on the Fair Market Rental
 Rate  within  forty (40) days  after the date of the  Renewal  Notice,  the two
 brokers  shall  jointly  appoint a third  broker on or before  the  forty-fifth
 (45th) day after the date of the Renewal Notice.  The third broker shall make a
 valuation  within fifty (50) days after the date of the Renewal  Notice and the
 Fair Market  Rental  Rate for each year of the Renewal  Term shall be an amount
 equal to the quotient  obtained by dividing  the sum of the Fair Market  Rental
 Rates  determined  by the two brokers who were closest to each other in amount,
 by two.

          Each broker appointed shall be an individual of recognized  competence
 who has a minimum of ten (10) consecutive  years'  experience in the leasing of
 office space in the suburban Northern Virginia area immediately  preceding such
 engagement.  All valuations of the Fair Market Rental Rate shall be in writing,
 shall be expressed in terms of an annual rent per square foot of rentable area,
 and shall take into  consideration that the Premises are to be taken in "as is"
 condition for any renewal  period.  Each broker shall determine the Fair Market
 Rental Rate on the basis of all relevant  factors  affecting Fair Market Rental
 Rates such as  concessions  then being  offered in the  marketplace.  The party
 appointing  each  broker  shall be  obligated,  promptly  after  receipt of the
 valuation  report prepared by the broker  appointed by such party, to deliver a
 copy of such  valuation  report  to the  other  party  in the  manner  provided
 elsewhere  in this  Lease  for the  giving  of  notices.  If a third  broker is
 appointed,  the third broker shall be directed, at the time of his appointment,
 to deliver copies of his valuation  report,  promptly after its completion,  to
 Landlord  and Tenant in the  manner  provided  elsewhere  in this Lease for the
 giving of notices.  The  expenses  of each of the first two  brokers  appointed
 shall be borne by the party  appointing such broker.  The expenses of the third
 broker appointed shall be paid one-half by Landlord and one-half by Tenant.

          Tenant  shall not be  entitled  to any rental  abatement  concessions,
 additional  renewal  options or other  similar  concessions  during any Renewal
 Term,  except to the extent they  constitute part of the  determination  of the
 Fair Market Rental Rate.

          Except  as set forth  herein,  the  leasing  of the  Premises  for the
 Renewal Term shall be upon the same terms and  conditions as are applicable for
 the initial term and shall be upon and subject to all of the provisions of this
 Lease, including, without limitation, the obligation of Tenant to pay any costs
 or amounts payable by Tenant to Landlord under the Lease.

          Tenant's  rights under this Section  16.32 shall be personal to Tenant
 and shall not inure to the benefit of any  assignee or occupant of the Premises
 other than an  assignee  which is a  successor

<PAGE>

 corporation  into which or with which Tenant is merged or consolidated or which
 acquires  substantially  all  of  Tenant's  assets  and  property,  or  to  any
 subsidiary,  affiliate or parent  company of Tenant,  or any  subsidiary of the
 parent company of Tenant.

          Section 16.33 Right of First Offer to Purchase.  Landlord shall notify
 Tenant of its intent to market the Property for sale,  and shall accord  Tenant
 thirty  (30) days from the date of  notice  (which  notice  shall  include  the
 purchase  price to be sought by Landlord) to reach  agreement  with Landlord on
 terms and  conditions  of sale,  in which event,  the parties will enter into a
 contract memorializing such terms and proceed to closing. If the parties do not
 reach  agreement  within such thirty (30) day period,  Landlord  shall have the
 absolute  right to sell the  Property  to any  other  party on such  terms  and
 conditions as may be acceptable to Landlord in its sole discretion.

          Section 16.34 Indoor Air Quality.  The party  performing  the property
 management  functions  shall have the Building tested for indoor air quality on
 an annual basis. To the extent Landlord is serving as property manager, (i) the
 costs of the tests shall constitute an Operating  Expense,  (ii) Landlord shall
 promptly  provide to Tenant copies of such annual written test reports relating
 to the air quality in the Building,  or any other written report,  information,
 or data  prepared as an  evaluation  of the indoor air quality of the Building,
 and (iii) Landlord shall implement  recommendations  set forth in the report as
 appropriate  to cause  all air  quality  in the  Building  to  conform  to then
 existing  local,  state  or  federal  regulations  and  the  costs  arising  in
 connection with such implementation shall constitute Operating Expenses.

          In the event that any problem with indoor air quality  which is caused
 by the  negligent  actions or  omissions of Landlord or  Landlord's  licensees,
 employees,  agents,  contractors  or invitees  use or occupancy of the Building
 prevents  Tenant from  conducting  its  business in the  Building  for five (5)
 consecutive  business  days,  then  beginning  on the sixth  (6th)  consecutive
 business day, Tenant's obligation to pay Rent shall abate until the air quality
 condition is corrected and Tenant is able to resume its business  operations in
 the Building.

          Tenant  covenants and agrees that the Building shall be a "smoke free"
building.

          Section 16.35 Landlord's  Representations and Warranties.  Landlord is
 the contract purchaser of the Property pursuant to the Standard Retail Purchase
 and  Sale  Agreement  ("Purchase  Contract")  between  Landlord  as  buyer  and
 Washington Engineering Associates Limited Partnership ("WEALP") dated April 23,
 1997. The Purchase  Contract  contains certain  representations  and warranties
 ("Contract  Reps") from WEALP as the owner to  Landlord as the buyer.  Landlord
 represents  and warrants that the substance of the Contract Reps is included in
 the representations and warranties contained in this Section 16.35. as follows.

          In connection therewith, Landlord represents and warrants to Tenant

          (i) To the best of  Landlord's  knowledge  and  belief and based on an
 environmental  report to be  prepared by ECS  Limited,  a copy of which will be
 delivered to Tenant after receipt by Landlord, there are no Hazardous Materials
 on, in or under the  Property,  Building or Office  Complex.  Landlord  further
 represents  that the current  owner of the Property  ("Owner") has not provided
 Landlord  with,  nor has Landlord  otherwise  received,  copies of any summons,
 citation,  directive, notice, complaint, letter or other written communication,
 from the United States  Environmental  Protection Agency or other  governmental
 authority  concerning any alleged violation of any environmental law or rule or
 regulation at the Property.  Landlord further  represents and warrants that, to
 its actual knowledge, there are no buried fuel tanks within the Property or the
 Option  Parcel  (as  defined  in the  Purchase  Contract)  or  within  any land
 adjoining  or in the  immediate  vicinity of either.  The  representations  and
 warranties  contained in this Section 16.35 shall be true and correct as of the
 Commencement  Date,  and Landlord shall  indemnify  Tenant and hold it harmless
 against  any  claims,  damages,  losses or  liabilities  (including  reasonable
 attorney's fees) incurred by Tenant and arising from any breach of same.

          (ii) To the best of Landlord's knowledge and belief, the Premises will
 be in compliance with applicable laws, statutes,  ordinances and regulations in
 effect as of the  Commencement  Date.  Landlord hereby agrees that Tenant shall
 have no  responsibility  for failure of the  Premises or the Office  Complex to
 comply with applicable laws, statutes,  ordinances and regulations which are in
 effect  and  applicable  to  the  Premises  or  the  Office  Complex  as of the
 Commencement Date.

         (iii) As of the Commencement  Date, the Premises shall be in compliance
 with  all  recorded  covenants,   conditions  and  restrictions  affecting  the
 Premises.

          (iv) To the best of Landlord's knowledge and belief, the Premises will
 be in compliance with the requirements of the ADA as of the Commencement  Date.
 Landlord  further  represents  and  warrants  that the work to be  performed in
 accordance with the Work Agreement shall be in compliance with or shall be made
 to comply with the requirements of the ADA;

<PAGE>

 provided, however, Landlord shall not be responsible for any ADA non-compliance
 arising from Tenant's Space Plan prepared by Tenant's  Architect (as such terms
 are defined in the Work Agreement).

          (v) To the  best of  Landlord's  knowledge,  fiber  optic  service  is
 available to the  development  of which the Property is a part.  Landlord  will
 cooperate  with  Tenant at  Tenant's  sole cost and  expense to bring the fiber
 optic service to the Premises, if requested.

          (vi) Based on a  representation  and warranty from Owner  contained in
 the  Purchase  Contract,  Owner  has not  received  any  written  notice of any
 violation ("Violation Notice") of any applicable laws, ordinances, regulations,
 statutes,  rules and  restrictions  pertaining  to and  affecting the Property.
 Landlord further represents and warrants that it has not received any Violation
 Notice relating to the Property.

          (vii) Based on a  representation  and warranty from Owner contained in
 the Purchase  Contract,  there is no pending,  or to Owner's actual  knowledge,
 threatened  condemnation  or similar  proceeding  affecting the Property or any
 portion  thereof,  and Owner has no knowledge that any such action is presently
 contemplated.  Landlord  represents and warrants that to its actual  knowledge,
 there is no such condemnation proceeding affecting any portion of the Property,
 and Landlord does not have knowledge that a condemnation  proceeding  affecting
 the Property is contemplated.

          (viii) Based on a representation  and warranty from Owner contained in
 the  Purchase  Contract,  (a)  Owner  has  granted  to no  other  person,  firm
 corporation  or other entity any right or option to acquire the Property or any
 portion  thereof or any interest  therein  from Owner,  and (b) Owner shall not
 enter into any other agreement,  contract or option to sell the Property or any
 portion  thereof or  interest  therein  with any other  person,  firm or entity
 during the term of the  Purchase  Contract.  Landlord  represents  and warrants
 that,  to its  knowledge,  neither  Landlord  nor Owner has  granted  any other
 person, firm,  corporation or entity any right or option to acquire any portion
 of the Property or the Option Parcel.

          (ix) Based on a  representation  and warranty from Owner  contained in
 the Purchase Contract,  Owner has not received any notice regarding proceedings
 to  change  the  zoning  or land  use  classification  of the  Property  or the
 conditions applicable thereto. Landlord represents and warrants that it has not
 received any such notice to change the zoning applicable to the Property.

          (x) Based on a representation and warranty from Owner contained in the
 Purchase Contract, Owner has not received any notice that the Property was ever
 used as a landfill or as a garbage dump during the period of Owner's ownership.
 Landlord  represents  and warrants that it has not received any notice that the
 Property  was ever used as a landfill  or a garbage  dump  during the period of
 Owner's ownership.

          (xi) Based on a  representation  and warranty from Owner  contained in
 the Purchase  Contract,  neither Owner nor any of its agents or employees  have
 made unrecorded commitments or side agreements with any governmental authority,
 utility  company,  school  board,  church  or  other  religious  body,  or  any
 homeowners or homeowners'  association or with any other  organization,  group,
 party,  or  individual  (collectively,  "Side  Agreements"),  relating  to  the
 Property  which would impose an obligation  upon Landlord or its  successors or
 assigns  to  make  any  contribution  or  dedication  of  money  or  land or to
 construct,  install, or maintain any improvements of a public or private nature
 on or  off  the  Property.  Landlord  represents  and  warrants  that,  to  its
 knowledge, Owner has not entered into any such Side Agreements.

         (xii) Based on a  representation  and warranty from Owner  contained in
 the Purchase  Contract,  Owner has not received  written notice  ("Preservation
 Notice")  that the Property has been  identified  by any  governmental  body or
 private  organization as the habitat of any species of plant or animal which is
 endangered or which requires special conservation measures. Landlord represents
 and warrants that Landlord has not received any such Preservation Notice.

         (xiii) Based on a  representation  and warranty from Owner contained in
 the Purchase  Contract,  Owner has not received  written  notice that any human
 burial grounds or  archaeological  sites have been  identified as existing upon
 the Property and Owner has not received  written  notice that any  improvements
 upon the Property have been designated by any governmental  authority as having
 special  architectural  or historical  significance.  Landlord  represents  and
 warrants  that,  to its  knowledge,  the Property has not been so designated as
 having special architectural or historical significance.

          (xiv) After  Closing (as defined in the Purchase  Contract),  Landlord
 will own fee simple title to the Property,  free and clear of all restrictions,
 liens,  encumbrances,   easements,   exceptions,   covenants,   conditions  and
 reservations,  except for  Permitted  Exceptions  (as  defined in the  Purchase
 Contract), financing agreements for which Tenant has received a non-disturbance
 agreement  as  contemplated  by Section  15.1 of this  Lease,  and other  title
 matters expressly permitted by the terms of this Lease.

<PAGE>

          Section 16.36 Expansion Option.

          Landlord   intends  to  purchase  the  parcel   ("Expansion   Parcel")
 immediately  adjacent to the Land containing  approximately  5.5 acres upon the
 terms and conditions more particularly set forth in the Purchase Contract.  The
 Expansion Parcel is also known as parcel L-3. Tenant shall be entitled to lease
 the Expansion Parcel and the Expansion Building (as hereinafter defined) on the
 terms and conditions set forth in this Section 16.36.

          If Tenant  desires to lease the  Expansion  Parcel  and the  Expansion
 Building (collectively,  the "Expansion Premises"),  Tenant shall give Landlord
 written  notice prior to the first  anniversary  of the  Commencement  Date. If
 Tenant fails to timely give  Landlord  such written  notice,  time being of the
 essence,  Tenant's  expansion  option shall  automatically  expire and be of no
 further  force or  effect.  Tenant  shall not have the right to  exercise  this
 expansion  option if, at any time prior to the time Tenant  takes  occupancy of
 the  Expansion  Premises,  Tenant  has  defaulted  under the Lease  beyond  any
 applicable notice and cure period contained in the Lease.

          If Tenant  timely  gives  Landlord  written  notice  of its  desire to
 exercise its expansion  option in accordance with this Section 16.36,  Landlord
 shall commence and  thereafter  diligently  pursue  completion of the Expansion
 Building on the Expansion Parcel. As used herein, the term "Expansion Building"
 shall mean and refer to an of Office  building  containing  no less than 40,000
 square feet of net  rentable  area and  incorporating  building  materials  and
 leasehold   improvements,   the   quantity   and  quality  of  which  shall  be
 substantially  similar  to the  Building  to be  built  pursuant  to  the  Work
 Agreement.  Notwithstanding  the  foregoing,  Landlord  shall  incorporate  all
 changes to the Expansion  Building  requested by Tenant which are acceptable to
 Landlord in its sole but reasonable discretion.  Also notwithstanding  anything
 to the contrary contained in this Section 16.36,  Landlord shall be entitled to
 construct the Expansion  Building such that it contains more than 40,000 square
 feet of net rentable area, in which event (i) "Expansion  Premises"  shall only
 refer to the  number  of  square  feet of net  rentable  area in the  Expansion
 Building to be leased by Tenant  (but in no event less than 40,000  square feet
 of net rentable area), and not the entire Expansion  Building and the Expansion
 Parcel;  (ii)  Landlord  shall be  entitled  to lease the  excess  space in the
 Expansion  Building  to third  parties;  and (iii)  Landlord  shall  assume all
 property  management  responsibilities  for the  Expansion  Building and Tenant
 shall only be responsible for its proportionate share of the costs and expenses
 incurred in connection with same.

          The  Expansion  Building  shall be  constructed  within  eighteen (18)
 months of the date of Tenant's notice exercising its expansion option,  subject
 to all the same delay  provisions as are applicable to the  construction of the
 Building.  Tenant shall lease the Expansion  Premises for a minimum term of ten
 (10)  years,  commencing  on the  date of  Final  Completion  of the  Expansion
 Building, and ending on the tenth (10th) anniversary of such date.

          Tenant shall commence  payment of Base Rent,  Additional  Rent and all
 other applicable sums with respect to the Expansion  Premises  immediately upon
 Landlord's Final Completion of same. Base Rent for the Expansion Premises shall
 be equal to the product of (i) the then-currently  escalated Base Rent rate for
 the  Premises  as set forth in the  Lease,  and (ii) the  greater of (x) 40,000
 square  feet of net  rentable  area,  or (y) the  number of square  feet of net
 rentable area contained in the Expansion Premises. Base Rent for the second and
 all  subsequent  years  during  the term for the  Expansion  Premises  shall be
 recomputed in accordance with the rental  escalation  provisions  applicable to
 the  Premises,  provided the number of square feet of net rentable area for the
 Expansion  Premises  shall not be less than 40,000 for  purposes  of  computing
 rent. At the time the Expansion Premises are added to the Premises, the Term of
 the Lease for the initial  Premises shall be  automatically  extended such that
 the Term of the Lease for both the initial Premises and the Expansion  Premises
 shall expire on the tenth (l0th) anniversary of the date of Final Completion of
 the Expansion Premises, unless sooner terminated.

          Tenant's  rights under this Section  16.36 shall be personal to Tenant
 and shall not inure to the benefit of any  assignee or occupant of the Premises
 other than an  assignee  which is a  successor  corporation  into which or with
 which Tenant is merged or consolidated or which acquires  substantially  all of
 Tenant's assets and property, or to any subsidiary, affiliate or parent company
 of Tenant, or any subsidiary of the parent company of Tenant.

          Landlord  and Tenant  acknowledge  that,  given the  uncertainties  of
 Tenant's expansion needs and Landlord's opportunities to accommodate additional
 parties in the Expansion Building,  it is not possible to set out all the terms
 and conditions  relative to Tenant's  leasing the Expansion  Premises as of the
 date of this  Lease.  As such,  if  Tenant  exercises  its  expansion  right in
 accordance  with the terms of this Lease,  Landlord and Tenant  shall,  in good
 faith, negotiate a lease amendment which addresses all matters relative to such
 expansion;  provided, however, the parties agree that, to the extent reasonably
 possible,  the leasing of the Expansion Premises shall be on and subject to the
 same terms and  conditions  as are  applicable  to the  leasing of the  initial
 Premises.  In the event Landlord and Tenant are unable to finalize the terms of
 the lease amendment within sixty (60) days after the date on which Tenant gives
 Landlord written notice exercising the option,

<PAGE>

 Tenant's Expansion Option shall automatically expire and be of no further force
 and effect unless the sixty (60) day period is extended by mutual  agreement of
 Landlord and Tenant.

          Section  16.37  Refurbishing.  In the  event  Tenant  elects to paint,
 re-carpet or make other leasehold  improvements to the Premises After the fifth
 (5th)  anniversary of the Commencement  Date,  Landlord shall,  subject to this
 Section  16.37,  finance a portion of Tenant's  costs  incurred  in  connection
 therewith  up to an amount  equal to the  product  of $5.00  and the  number of
 square feet of net  rentable  area  contained  in the  Premises  ("Refurbishing
 Loan").  The items for which the proceeds of the Refurbishing  Loan may be used
 shall be subject to Landlord's prior written approval,  such approval not to be
 unreasonably withheld.

          If Tenant desires the Refurbishing Loan, then prior to the sixth (6th)
 anniversary  of the  Commencement  Date Tenant shall  deliver to Landlord (i) a
 certificate  signed by an officer of Tenant stating that the refurbishing  work
 is complete;  (ii) final lien waivers from all  subcontractors  performing  the
 refurbishing work; and (iii) paid invoices related to the refurbishing work. So
 long as Tenant is not then in default  under the terms of the Lease  beyond any
 applicable  notice and cure period  provided in Section 14.1  hereof,  Landlord
 shall disburse the Refurbishing Loan proceeds to Tenant within thirty (30) days
 of receipt of the items referenced above.

          The  Refurbishing  Loan  shall  bear  interest  at 9% per  annum  (the
 "Interest  Rate").  Commencing  on  the  first  (1st)  day of  the  month  next
 succeeding the date on which the Refurbishing  Loan proceeds are distributed to
 Tenant and continuing monthly thereafter,  Tenant shall pay to Landlord monthly
 installments  sufficient in amount to fully amortize all principal and interest
 during the period  remaining in the Term of the Lease  (approximately 5 years).
 Such payments shall, for collection and Default purposes, constitute Additional
 Rent.

          The entire unpaid balance of the Refurbishing Loan,  including accrued
 and  unpaid  interest,  shall be  accelerated  and become  immediately  due and
 payable in full upon the  expiration or earlier  termination of the Term of the
 Lease.

          All  refurbishing  work shall be carried  out in  accordance  with the
 provisions of this Lease,  including,  without  limitation,  the  provisions of
 Article 8 governing improvements to the Premises by Tenant.

          Section  16.38 Site  License.  Landlord  acknowledges  that  Tenant is
 currently  negotiating with WEALP for a license to allow Tenant to maintain and
 operate a telescope  on other  property  owned by WEALP in the  vicinity of the
 Property.  If, at any time  during the term of this  Lease,  Tenant  desires to
 relocate the telescope onto the Property or the Expansion Parcel, then provided
 Tenant is not in default beyond any applicable notice and cure period, Landlord
 and Tenant  shall use good faith  efforts to  negotiate  a mutually  acceptable
 license  agreement for the relocation of the telescope onto the Property or the
 Expansion Parcel.

          IN WITNESS  WHEREOF the parties have executed this Lease as of the day
 and year first above written.

          Landlord:

          Opus East, L.L.C.

          By                                     [SEAL]

          Its PRESIDENT

          Tenant:

          Stanford Telecommunications, Inc.

          By

          Its                                    [SEAL]

         



                                 EXHIBIT 10.11

            RIDER TO CONSOLIDATED, AMENDED AND RESTATED DEED OF LEASE
                                 RIDER NO. THREE


 THIS RIDER TO CONSOLIDATED AMENDED AND RESTATED DEED OF LEASE AGREEMENT, made
this 15 day of May,  1998 by and between A & A Fairfax Four L.L.C.  as successor
in interest to The Variable Annuity Life Insurance Company (hereinafter referred
to as "Landlord"), and Stanford  Telecommunications,  Inc. (hereinafter referred
to as "Tenant").

                                WITNESSETH THAT:

WHEREAS,  Landlord and Tenant entered into a CONSOLIDATED,  AMENDED AND RESTATED
DEED OF LEASE dated October 1, 1993 (hereinafter the "Lease"); and

WHEREAS,  Landlord  and Tenant  entered  into  Rider No. 1 to the  CONSOLIDATED,
AMENDED AND RESTATED DEED OF LEASE dated June of 1995; and,

WHEREAS,  Landlord  and Tenant  entered  into  Rider No. 2 to the  CONSOLIDATED,
AMENDED AND RESTATED DEED OF LEASE dated September 30 of 1996; and,

WHEREAS,  Landlord and Tenant desire to further modify the Lease so as to extend
the Lease under the terms as set forth herein.

NOW,  THEREFORE,  in  consideration  of Ten Dollars  ($10.00) and other good and
valuable  consideration,   the  receipt  and  sufficiency  of  which  is  hereby
acknowledged by the parties hereto, the parties hereto agree as follows:

1. Terms.  All terms used and not defined  herein shall have the same meaning as
set forth in the Lease.

2.  Premises.  The Premises as defined in the Lease,  shall be deemed to include
the Second  Expansion  Space (as defined in Section 4 herein)  effective July 1,
1998 and shall  total  79,659  rentable  square feet  subject to the  adjustment
provided in Section 6 herein.

3. Extension Term. The Term of the Lease currently expires on September 30, 1999
and the  parties  hereby  agree to extend  the Term of the Lease for a period of
Seven (7) years  terminating at 11:59 P.M. on September 30, 2006 (the "Extension
Term").

4. Additional Space.  Commencing July 1, 1998, Landlord shall deliver and Tenant
hereby accepts, a portion of the first floor comprising of 1,687 rentable square
feet of  additional  space  as  outlined  on the  attached  Exhibit  A  ("Second
Expansion Space").  For the period July 1, 1 998 through September 30, 1999, the
Base Rent for the Second Expansion Space shall be $1,000.00 per month.

5. Tenant's  Proportionate Share. Effective July 1, 1998, Tenant's Proportionate
Share of  Operating  Expenses and Real Estate Taxes as defined in Section 1.9 of
the  Lease  shall  be  increased  to  83.65%.  Tenant's  Proportionate  Share of
Operating Expenses and Real Estate Taxes shall be further adjusted in accordance
with Section 6.

6.  Subleased  Premises.  It is  understood  and  acknowledged  that  Tenant and
Lockheed Martin as successor in interest to Loral  Corporation have entered into
a Sublease  agreement  dated  August of 1994 (the  "Sublease").  The Sublease is
governed by a certain lease  agreement  between  Lockheed Martin as successor in
interest to Loral Corporation and Landlord,  as amended (hereinafter referred to
as the "Lockheed  Lease").  The Sublease is comprised of  approximately  13,521,
located on the third (3rd) floor of 

<PAGE>

the Building (the "Subleased Premises").  It is further understood that upon the
expiration of the Lockheed  Lease,  either through its natural  expiration or by
early  termination of the Lockheed Lease in accordance  with the terms contained
therein,  the Subleased Premises shall be incorporated into the Premises and the
rentable area which comprises the Premises shall be increased to 93,180 rentable
square feet. Accordingly, Tenant's Proportionate Share of Operating Expenses and
Real Estate  Taxes as defined in Section 1.9 of the Lease shall be  increased to
97.85%  immediately  upon the expiration of the Lockheed Lease. For the purposes
of the  schedule of Base Rent set forth in Section 7 herein,  it is assumed that
the  Sublease  shall  expire at its natural  expiration  of November  30,  2001.
Notwithstanding  anything to the  contrary,  in the event the Lockheed  Lease is
terminated  prior to its  natural  expiration  for any  reason  whatsoever,  the
Subleased  Premises shall then immediately be incorporated  into the Premises in
accordance  with this  paragraph and the base Rent schedule shall be adjusted so
as to  incorporate  the  Subleased  Premises.  The Base  Rent for the  Subleased
Premises at the  expiration  of the Lockheed  Lease shall be the then  escalated
rate for the Premises on a per square foot basis (see Section 7).
<TABLE>

7. Adjustment of Rent. In addition to all Base Rent and other sums to be paid by
the Tenant  pursuant to the Lease Tenant agrees to pay the following  amounts of
Base Rent for the Extension Term:
<CAPTION>
- ----------------------- -------------------- ------------------ --------------------- ---------------------
      LEASE YEAR             RENTABLE            BASE RENT             ANNUAL               MONTHLY
                            SQUARE FEET          PER S.F.            BASE RENT             BASE RENT
- ----------------------- -------------------- ------------------ --------------------- ---------------------
<S>                           <C>                 <C>              <C>                    <C>        
   10/1/99-9/30/00            79,659              $20.60           $1,640,975.40          $136,747.95
- ----------------------- -------------------- ------------------ --------------------- ---------------------
   10/1/00-9/31/01            79,659              $21.22           $1,690,204.66          $140,850.39
- ----------------------- -------------------- ------------------ --------------------- ---------------------
   10/1/01-1/30/01            79,659              $21.85           $1,740,910.80          $145,075.90
- ----------------------- -------------------- ------------------ --------------------- ---------------------
   12/1/01-9/30/02            93,180              $21.85           $2,036,406.04          $169,700.50
- ----------------------- -------------------- ------------------ --------------------- ---------------------
   10/1/02-9/30/03            93,180              $22.51           $2,097,498.22          $174,791.52
- ----------------------- -------------------- ------------------ --------------------- ---------------------
   10/1/03-9/30/04            93,180              $23.19           $2,160,423.16          $180,035.26
- ----------------------- -------------------- ------------------ --------------------- ---------------------
   10/1/04-9/30/05            93,180              $23.88           $2,225,235.86          $185,436.32
- ----------------------- -------------------- ------------------ --------------------- ---------------------
   10/1/05-9/30/06            93,180              $24.60           $2,291,992.94          $190,999.41
- ----------------------- -------------------- ------------------ --------------------- ---------------------
</TABLE>


For the purposes of the schedule  above,  it is assumed that the Sublease  shall
survive  until the natural  expiration of its term. In the event the Sublease is
terminated  prior to its  natural  expiration  for any  reason  whatsoever,  the
schedule above shall be adjusted to include the Subleased Premises.

8.  Improvements  to the Premises.  Tenant  accepts the Premises in its absolute
"as-is" condition. The cost of any additional improvements will be paid directly
by Tenant and shall be deemed  Additional  Rent as  defined  in the  Lease.  All
improvements  shall be  completed in  accordance  with  Sections  13.2 and 13.3.
Notwithstanding  the above,  Landlord  shall  contribute  a total of two hundred
twenty  thousand  dollars  ($220,000)  towards the cost of  improvements  to the
Premises (the "Allowance"). The Allowance shall be funded in accordance with the
following schedule; (I) Landlord shall provide $140,000 on or about September 1,
1999 and (ii) $80,000 at the conclusion of the fourth Lease Year for the Term so
extended (i.e.  September 30, 2003).  Each installment of the Allowance shall be
funded within 45 days of Tenant's written request to Landlord.

9. Assignment and Subletting. Notwithstanding anything contained in the Lease to
the  contrary,  Tenant and  Landlord  shall  share  equally in any  sublease  or
assignment  revenue which exceeds the Rent for the proposed  sublease  premises,
less the costs of Tenant's  reasonable  transaction fees directly  incurred as a
result of the proposed sublease/assignment. Tenant shall provide Landlord with a
detailed  accounting of all transaction fees (including  invoices from 3rd party
vendors/consultants) within thirty (30) days of the proposed sublease/assignment
effective date. It is specifically understood that the language contained herein
shall supersede the Lease
<PAGE>

10. Base Year for Operating Expenses and Real Estate Taxes.  Effective September
1, 1999, the Base Year for Operating  Expenses and Real Estate Taxes, as defined
in Section  1.8 of the Lease (as more  specifically  defined in Sections 7 and 8
respectively), shall be adjusted to reflect a Base Year cost of $7.20 per square
foot and upon such date all  references to the "Calendar  Year 1993" as the Base
Year shall be deleted.  As such,  Tenant  shall be required to pay its  Pro-Rata
share of Operating Expenses and Real Estate Taxes which exceed the new Base Year
amount (i.e.  $7.20 per s.f.) provided however that Tenant shall not be required
to make such  payment  prior to January 1,  2000.  All other  terms of the Lease
governing  Operating  Expenses and Real Estate  Taxes shall apply,  specifically
including any cap on Operating Expenses provided therein.

11. Option To Extend.  As long as Tenant has not been in Default more than three
(3) times  during the Term of the Lease as so extended  by this Rider No.  Three
and is not in an Event of Default under the Lease at the time of its exercise of
this option, Tenant shall have one (1) option to extend this Lease in accordance
with the provisions of this paragraph for an additional term of three (3) years,
on all the same terms and  conditions  with the  exception  of Base Rent payable
under Section 2 of the Lease,  which shall be Landlord's  then  prevailing  fair
market value being charged by landlord's for space reasonably  comparable to the
Premises.  If Tenant elects to exercise the foregoing option to extend, it shall
give  Landlord  written  notice of its  election  to do so on or before the date
which is two hundred and twenty (220) days prior to the  expiration  of the Term
of the  Lease,  but not prior to three  hundred  twenty  (320) days prior to the
expiration  of the Term of the Lease,  time being of the  essence,  which notice
shall also request that Landlord shall furnish Tenant with the base rent for the
extended term which shall be derived using Landlord's reasonable estimate of the
fair market rate for space  comparable to the Premises.  Landlord  shall furnish
Tenant  within  thirty (30) days of receipt of Tenant's  notice of exercise with
the base rent figure for the term  extension.  Provided,  however,  in the event
Landlord  and Tenant have not signed an  amendment  to this Lease for any reason
confirming  the extended  term of the Lease and setting  forth the base rent for
that term by a date  which is no less than one  hundred  and  eighty  (180) days
prior to the  expiration  of the Term of the Lease,  time being of the  essence,
then  Tenant's  extension  of the Lease  shall be deemed  null and void and this
Lease shall expire on the termination  date as if the above extension option had
not been exercised. This option to extend is personal to Tenant only, and is not
assignable.  Tenant has no option(s) to extend this Lease except as set forth in
this paragraph.


12. Brokerage Landlord and Tenant acknowledge that no real estate broker,  agent
or finder,  other than Cambridge Property Group Limited Partnership as Agent for
Landlord,   has  been  involved  in  procuring  or  otherwise  negotiating  this
transaction on either parties behalf. Further Tenant shall indemnify, defend and
hold  harmless  Landlord  against and from any claims made by any other agent or
finder claiming to represent Tenant.  Notwithstanding the above, Landlord agrees
to pay Cambridge Property Group Limited  Partnership a commission based upon the
terms contained in a separate written agreement between the parties.

13.  Ratification.  Except  as  specifically  modified  herein,  all  terms  and
conditions  of the Lease are hereby  ratified  by the  parties  hereto and shall
remain in full force and effect.



<PAGE>



IN WITNESS WHEREOF,  Landlord and Tenant have executed this Rider as of the date
first written above.


 WITNESS:                    LANDLORD:  A & A Fairfax Four L.L.C.
                             By:  Cambridge Asset Advisors Limited Partnership,
                             As Agent
                             By:  Cambridge Property Advisors, Inc., as General
                             Partner



                             /s/ Andrew J. Czekaj
                             --------------------
                             Mr. Andrew J. Czekaj
                             Chairman



 WITNESS:                    TENANT: Stanford Telecommunications, Inc.



                             /s/ Leonard Schuchman
                             ---------------------
                             Mr. Leonard Schuchman
                             Vice President




Exhibit 13.1
Management's Discussion and Analysis
of Financial Condition and Results of Operation


                                    OVERVIEW

Since the Company's  inception in 1973,  revenues have been generated  primarily
from sales to agencies of the U.S.  Government,  including the DoD, the U.S. Air
Force,  Army and  Navy,  NASA and the FAA,  or  their  prime  contractors.  Such
revenues  are  generated  from  many  contracts   including  programs  requiring
multi-year hardware and software  development and limited production of products
and systems.  The  Company's  contracts  often  require the design,  production,
operation and maintenance of  sophisticated  equipment and systems and provision
of system integration services in the digital  telecommunications  and satellite
communications  fields. A substantial portion of the digital  telecommunications
and satellite  communications  research and development performed by the Company
since its inception has been funded by its customers and recorded as revenues by
the Company.  Accordingly,  the cost of performing this customer-funded research
and  development  is included in "Cost of Revenues" in the  Company's  financial
statements. The Company's government contracts are generally  cost-reimbursement
plus profit or fixed-price contracts.  The Company generally recognizes revenues
from its long-term government contracts on a percentage-of-completion basis.

Commencing  in  the  late  1980's,   the  Company  began  to  pursue  commercial
opportunities  using its digital  telecommunications  technology  developed  and
enhanced by the Company since its inception. Commercial revenues have risen from
less than 6% of total revenues in fiscal year 1989 to approximately 38% of total
revenues in fiscal year 1998. During fiscal year 1998, commercial revenues which
amounted to approximately  $57.7 million  included:  (i) contract  manufacturing
revenues from the Company's electronics assembly business ($25.5 million);  (ii)
sales of ASICs, circuit boards and subsystems to the telecommunications industry
($14.2 million);  and (iii) other commercial systems and product business ($18.0
million).  Future commercial revenues are anticipated from existing products and
products to be  introduced in the coming  fiscal year.  The Company  includes in
commercial  revenues  sales of  standardized  or  off-the-shelf  products to any
customers, including government customers.

Over the last two fiscal years,  the Company has greatly  increased its level of
independent  research and  development  expenditures.  Research and  development
expenses  increased  from $8.4  million in fiscal year 1996 to $11.9  million in
fiscal  year 1997 and $13.6  million in fiscal year 1998.  The Company  believes
that this increase is necessary to successfully develop competitive products for
the commercial telecommunications market. During fiscal year 1998, approximately
$10.0  million,  or 72% of the  Company's  R&D was  invested in these  strategic
commercial  initiatives.  The  Company  has  applied  much of its  research  and
development  expenditures to commercial products and initiatives in the areas of
wireless and cable broadband communications.

The Company's  operating results have from time to time been adversely  affected
by non-recoverable  cost overruns on certain  fixed-price  contracts,  primarily
fixed-price  development  contracts that have included  significant software and
hardware development.  The Company has instituted additional management controls
to more closely  monitor its bidding  process and costs  incurred on fixed-price
development contracts,  however, no assurance can be given that the Company will
not  incur  losses on  future  fixed-price  contracts  or  additional  losses on
existing  contracts.  The Company  believes  that  development  contracts are an
important  element in  maintaining  its  technological  leadership  position  in
digital telecommunications. As a result, the Company may incur losses on certain
fixed-price contracts. Such losses will be charged against results of operations
in the period when they first become known, typically near the initiation of the
contract  and may have a material  adverse  effect on the  Company's  results of
operations.


                              CAUTIONARY STATEMENTS

In the interest of providing the Company's  shareholders and potential investors
with certain  Company  information,  including  management's  assessment  of the
Company's future potential,  certain  statements set forth herein (a) contain or
are  based on  projections  of  revenue,  income,  earnings  per share and other
financial items or (b) relate to management's  future plans and objectives or to
the Company's future economic performance.  Such statements are "forward-looking
statements"  within the meaning of Section 27A(i) of the Securities Act of 1933,
as amended,  and in Section  21E(i) of the  Securities  Exchange Act of 1934, as
amended.

Although any forward-looking  statements contained herein or otherwise expressed
by or on behalf of the Company are to the  knowledge  and in the judgment of the
officers and  directors  of the  Company,  expected to prove true and to come to
pass,  management  is not able to predict  the future with  absolute  certainty.
Accordingly,  shareholders  and potential  investors are hereby  cautioned  that
certain events or circumstances  could cause actual results to differ materially
from those  projected or predicted  herein.  In  addition,  the  forward-looking
statements  herein are based on  management's  knowledge  and judgment as of the
date  hereof,  and the  Company  does not intend to update  any  forward-looking
statements to reflect events occurring or circumstances existing hereafter.

For further  information  on the  foregoing,  reference is made to the Company's
Securities and Exchange Commission reports including its recent reports on Forms
10-Q and 10-K.

                                       22

<PAGE>

                              RESULTS OF OPERATIONS

The following  tables set forth, for the periods  indicated,  certain items from
the Company's  Statements  of Income  expressed as a percentage of the Company's
total revenues:

                                                             Year ended March 31
                                                1998         1997         1996
- --------------------------------------------------------------------------------
Revenues                                      100.0%        100.0%       100.0%
Cost of revenues                               76.1%         76.3%        80.0%
                                              ------        ------       ------
   Gross profit                                23.9%         23.7%        20.0%
                                              ------        ------       ------
Expenses
   Research and development                     8.9%          7.1%         5.8%
   Marketing and administrative                11.3%         10.1%         8.4%
                                              ------        ------       ------
   Total expenses                              20.2%         17.2%        14.2%
Operating income                                3.7%          6.5%         5.8%
Interest income, net                            1.2%          0.8%         0.6%
                                              ------        ------       ------
Income before provision for income taxes        4.9%          7.3%         6.4%
Provision for income taxes                     (1.5)%        (2.5)%       (2.1)%
                                              ------        ------       ------
Net income                                      3.4%          4.8%         4.3%
                                              ------        ------       ------


                         COMPARISION OF THE FISCAL YEARS

Revenues.  Revenues were $145.1  million,  $167.0  million and $153.3 million in
fiscal years 1996,  1997,  and 1998,  respectively,  representing a year-to-year
increase in fiscal year 1997 of 15% and a year-to-year  decrease of 8% in fiscal
year 1998.  The  increase in revenues  from fiscal year 1996 to fiscal year 1997
was primarily  attributable  to increases in the Company's  government  business
sector.  Revenues  generated by its government  business  sector  increased from
approximately  $79.0 million in fiscal year 1996 to $98.5 million in fiscal year
1997.  The  decrease in  revenues  from fiscal year 1997 to fiscal year 1998 was
primarily  the  result  of  a  decrease  in  commercial  revenues  significantly
attributable to an $8.6 million,  or 25%,  reduction in sales from the Company's
commercial manufacturing services from fiscal year 1997. Revenues generated from
commercial products and services were $66.2 million,  $68.5 and $57.7 million in
fiscal  years  1996,  1997 and 1998,  respectively.  Revenues  generated  by its
government  business sector  decreased from $98.5 million in fiscal year 1997 to
$95.6 million in fiscal year 1998.


Although the Company  experienced a slight  decrease in its government  business
revenues  during  fiscal year 1998,  the Company  did win four  significant  new
government  contracts  during the fiscal year. As such, the Company  anticipates
that its revenue from its government  customers may increase in future  periods.
However,  we believe  budgetary  pressures will continue to affect Department of
Defense,  FAA and NASA. All contracts with the government may be canceled at any
time for the  convenience  of the  government.  The  Company is not aware of the
cancellation  or  proposed  cancellation  of any of its current  contracts.  The
Company plans to continue to selectively pursue government business where it has
a competitive  advantage,  can be the sole provider or can be a prime contractor
rather than a subcontractor.

The Company's commercial business  represented  approximately 46% in fiscal year
1996, 41% in fiscal year 1997, and 38% in fiscal year 1998. The reduction in the
Company's commercial business sector in fiscal year 1998 was mainly attributable
to a decrease in the Company's commercial manufacturing services. The Company is
currently  pursuing  commercial  opportunities in satellite,  wireless and cable
broadband communication products. The Company expects that the percentage of its
overall   business   represented  by  commercial   sales  will  increase  if  it
successfully  develops,   markets  and  sells  those  products  currently  under
development.

Cost of  Revenues.  Cost of revenues  were $116.0  million,  $127.4  million and
$116.6 million in fiscal years 1996, 1997 and 1998,  respectively,  representing
80.0%,  76.3% and 76.1% of  revenues.  The  decrease  in cost of  revenues  as a
percentage of revenues in fiscal year 1997 relative to 1996 can be  attributable
to a profitable completion of the final phases of certain commercial development
programs and increased margins on both commercial and government contracts.  The
decrease in cost of revenues in fiscal year 1998 relative to 1997 was the result
of  recognition  of costs on lower  revenues  and a  reduction  in lower  margin
commercial electronic manufacturing revenues.

                                       23

<PAGE>

Management's  Discussion  and Analysis continued


Gross Profit. Gross profit was $29.1 million, $39.6 million and $36.6 million in
fiscal years 1996, 1997 and 1998,  respectively.  Gross profit  increased during
fiscal  year 1997  relative  to  fiscal  year  1996 as the  Company  experienced
operational  efficiencies  as a  result  of its  expanding  business  base,  and
increased  margins on its  Government  sales,  commercial  catalog  products and
certain  commercial  programs.  The decrease in gross profit  during fiscal year
1998 relative to fiscal year 1997 is primarily due to a lower revenue base.

Research and Development.  Research and development expenses,  including bid and
proposal  expenses were $8.4 million,  $11.9 million and $13.6 million in fiscal
year 1996, 1997 and 1998,  respectively.  The Company's research and development
expenses include bid and proposal expenses associated with government  contracts
and certain  large  commercial  programs.  The  Company has applied  much of its
research and development  expenditures to commercial products and initiatives in
the areas of wireless and cable broadband communications. The Company's research
and  development  expenses were $5.7 million,  $9.5 million and $11.3 million in
fiscal years 1996, 1997 and 1998, respectively. The Company expects research and
development expenses in fiscal year 1999 to decrease slightly as a percentage of
revenues  compared to the  percentage  experienced  in fiscal year 1998. Bid and
proposal  expenditures are largely the initial advanced  technology  development
efforts  directed  toward a  specific  product or  technical  task for which the
Company must show technical viability.  Bid and proposal expenses have decreased
since  fiscal year 1996 as the Company has focused its  available  research  and
development funds on the development of commercial products.

Marketing and Administrative.  Marketing and administrative  expenses were $12.2
million,  $16.8 million and $17.3 million in fiscal years 1996,  1997, and 1998.
The increase in costs from fiscal year 1996 to fiscal year 1997 was  primarily a
result  of  hiring  additional   technical  marketing  personnel  and  increased
marketing expenses in pursuit of commercial opportunities. The increase in costs
from fiscal year 1997 to fiscal year 1998 is a result of increase legal expenses
primarily  associated with a patent  infringement case brought by the Company in
December  1996  and  increased  marketing  expenses  in  pursuit  of  commercial
opportunities.

Operating  Income.  Operating income was $8.4 million,  $10.9 million,  and $5.7
million for fiscal years 1996,  1997 and 1998.  The increase in fiscal year 1997
was  primarily  attributable  to  operational  efficiencies  experienced  as the
Company  expanded its business  base, the avoidance of material cost overruns on
its contracts and increased  margins on its  commercial  catalog  products.  The
decrease  in  operating  income  from  fiscal  year 1997 to fiscal year 1998 was
primarily  the result of a decrease in  revenues,  an  increase in research  and
development, and an increase in marketing and administrative expenses.

Interest Income,  Net.  Interest income,  net was $.8 million,  $1.3 million and
$1.9 million in fiscal years 1996, 1997 and 1998, respectively.  In fiscal years
1997 and 1998,  the Company has  increased  its  interest  income over  previous
periods as a result of  maintaining  a higher  overall  average  balance in U.S.
Treasury instruments and money market accounts.

Provision  for income Taxes.  Provision for income taxes was $3.1 million,  $4.2
million and $2.3 million in fiscal years 1996, 1997 and 1998, respectively. This
represents an effective tax rate of 33.5% for fiscal year 1996, 34.5% for fiscal
year 1997 and 31.0% for fiscal year 1998. The increase in the effective tax rate
in fiscal year 1997 was primarily attributable to a non-recurring reduction of a
valuation  allowance in fiscal year 1996. The decrease in the effective tax rate
during  fiscal year 1998  compared to fiscal year 1997  results  primarily  from
increased  Research and Development (R&D) tax credits and other state income tax
credits. The Company anticipates that its effective tax rate in fiscal year 1999
will be  approximately  the same as  experienced  in fiscal  year 1998  assuming
continued extension of the federal R&D tax credit.

Bookings and Backlog.  Funded bookings were $155.0  million,  $168.5 million and
$163.0  million in fiscal years 1996,  1997 and 1998,  respectively.  Government
contract  bookings were $79.7  million,  $103.5 and $102.8 million during fiscal
years 1996, 1997 and 1998,  respectively Commercial contract bookings were $75.3
million,  $65.0  million  and $60.2  during  fiscal  year  1996,  1997 and 1998,
respectively  The Company's  backlog  increased from $82.4 million at the end of
fiscal  year 1996 to $83.9  million at the end of fiscal year 1997 and a further
12% to $93.6 million at the end of fiscal year 1998.

                                       24

<PAGE>


Summary.  The  Company's  revenues  and  results of  operations  are  subject to
fluctuation  from  period to  period.  Factors  that could  cause the  Company's
revenues and operating  results to vary from period to period  include:  timing,
bidding activity and delivery of significant commercial and government contracts
and orders; mix of products and systems sold, and services provided; disruptions
in delivery of components or  subsystems;  underestimating  costs on fixed-price
contracts  particularly  for software and hardware  development;  termination of
contracts;  regulatory developments;  and general economic conditions.  Research
and development  expenses include both research and development costs as well as
bid and proposal  expenses.  Bid and proposal expenses vary  significantly  from
period to period  based on the number of proposals  being  prepared at any time.
These  requests for proposals are not received  evenly during the year or in any
predictable pattern.


                         LIQUIDITY AND CAPITAL RESOURCES

Working capital  increased from $56.5 million to $66.4 million at March 31, 1996
and March 31, 1997,  respectively,  and  increased to $73.1 million at March 31,
1998. The increases in working capital at March 31, 1997 and March 31, 1998 were
primarily  attributable  to cash  generated  from net income and  proceeds  from
transactions under stock plans.

Net cash  provided by operating  activities  for the years ended March 31, 1996,
1997 and 1998 was $8.7 million,  $18.6  million and $4.4 million,  respectively.
The  increase  from 1996 to fiscal  year 1997 can be  largely  attributed  to an
increase in net income and the  reduction  of  inventories.  The  decrease  from
fiscal  year 1997 to fiscal  year 1998 is the  result of lower net income and an
increase in inventories to support future delivery of commercial products.

The Company used its cash for the purchase of property  and  equipment  totaling
$4.5 million,  $5.5 million and $5.9 million in fiscal year 1996, 1997 and 1998,
respectively. Capital expenditures in recent years are primarily attributable to
increased  investments  in the  Company's  commercial  activities  and leasehold
improvements in the Company's facilities in order to support its growth.

During fiscal years 1996,  1997 and 1998,  $1.1  million,  $1.6 million and $1.6
million respectively,  of net cash was provided by financing  activities.  These
amounts  represent  primarily  the proceeds  from  transactions  under the stock
plans.

The Company has a bank credit  commitment  of $15.0 million which it has used to
augment  cash flow needs and to secure term loans or standby  letters of credit.
Available  borrowings  under this line at March 31,  1998,  were $15.0  million.
Under this credit line, the Company must maintain certain  financial  covenants.
The Company was in compliance with all covenants throughout fiscal year 1998. At
March  31,  1998,  the  Company's  long-term   obligations   (including  current
maturities) and capital lease obligations totaled  approximately $.1 million. At
March  31,  1998,  cash  and  cash   equivalents  of  $13.9  million  were  held
significantly  in money market  accounts  and  short-term  investments  of $19.5
million were held in U.S. Government Treasury instruments.

The Company  believes  that its current  cash  position,  funds  generated  from
operations and funds available from its existing bank credit agreement,  will be
adequate  to meet  the  Company's  requirements  for  working  capital,  capital
expenditures and debt service for the next fiscal year.

The Company is in the process of  identifying  anticipated  costs,  problems and
uncertainties  associated  with  making both the  Company's  products as well as
internal-use software applications Year 2000 compliant.  In general, the Company
plans to  resolve  Year 2000  issues  associated  with its own  products  either
through  Company  and/or  customer  paid  upgrades.  In the case of third party,
internal-use  software,  the Company is planning to obtain Year 2000  compliance
certifications from the suppliers and, where necessary, replace or upgrade those
software packages which are not compliant.  Although  management does not expect
Year 2000 issues to have a material  impact on its business or future results of
operations,  there can be no assurances that there will not be  interruptions or
other  limitations  of system  functionality  or that the Company will not incur
significant costs to avoid such interruptions or limitations.

                                       25

<PAGE>


Report of Independent Public Accountants

To Stanford Telecommunications, Inc.:

We have audited the accompanying balance sheets of Stanford  Telecommunications,
Inc. (a  Delaware  Corporation)  as of March 31, 1998 and 1997,  and the related
statements of income,  shareholders' equity and cash flows for each of the three
years in the period ended March 31, 1998.  These  financial  statements  are the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material respects,  the financial  position of Stanford  Telecommunications,
Inc.  as of March 31, 1998 and 1997 and the  results of its  operations  and its
cash flows for each of the three  years in the period  ended  March 31,  1998 in
conformity with generally accepted accounting principles.


                                                   /s/ Arthur Andersen LLP
                                                   -----------------------------
                                                       ARTHUR ANDERSEN LLP
                                      San Jose, California, April 22, 1998


Statements of income

                                                             Year ended March 31
(In thousands, except per share amounts)              1998       1997       1996
- --------------------------------------------------------------------------------
Revenues                                          $153,260   $167,002   $145,100
Cost of revenues                                   116,629    127,432    116,014
                                                  --------   --------   --------
   Gross profit                                     36,631     39,570     29,086
                                                  --------   --------   --------
Expenses
   Research and Development                         13,647     11,868      8,429
   Marketing and Administrative                     17,321     16,808     12,213
                                                  --------   --------   --------
      Total expenses                                30,968     28,676     20,642
                                                  --------   --------   --------
Operating income                                     5,663     10,894      8,444
Interest income, net                                 1,896      1,336        839
                                                  --------   --------   --------
Income before provision for income taxes             7,559     12,230      9,283
Provision for income taxes                           2,343      4,219      3,110
                                                  --------   --------   --------
Net income                                        $  5,216   $  8,011   $  6,173
                                                  ========   ========   ========
Earnings per share--basic and diluted             $   0.40   $   0.61   $   0.49
                                                  ========   ========   ========
Weighted average number of common
  and potential common shares outstanding:

     Basic                                          12,953     12,775     12,556
                                                  ========   ========   ========
     Diluted                                        13,179     13,070     12,702
                                                  ========   ========   ========

   The accompanying notes are an integral part of these financial statements.

                                       26

<PAGE>


Balance Sheets


                                                             Year ended March 31
(In thousands)                                               1998           1997
- --------------------------------------------------------------------------------
ASSETS
Current assets:
   Cash and cash equivalents                            $  13,914     $   8,235
   Short-term investments                                  19,493        25,074
   Accounts receivable                                     26,958        25,856
   Unbilled receivables                                    20,911        19,754
   Inventories, net of related progress billings           14,276         6,011
   Prepaid expenses and other                               1,919         4,201
                                                        ---------     ---------
      Total current assets                                 97,471        89,131
                                                        ---------     ---------
Property and equipment at cost:
   Electronic test equipment                               46,768        42,797
   Furniture and fixtures                                   3,887         3,613
   Leasehold improvements                                   3,996         3,722
                                                        ---------     ---------
                                                           54,651        50,132
                                                        ---------     ---------
   Less: Accumulated depreciation and amortization        (40,516)      (36,019)
                                                        ---------     ---------
      Net property and equipment                           14,135        14,113
                                                        ---------     ---------
Other assets                                                  535           274
                                                        ---------     ---------
                                                        $ 112,141     $ 103,518
                                                        =========     =========


LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:
   Current maturities of long-term obligations          $      44     $      88
   Accounts payable                                        10,739         5,902
   Advance payments from customers                          1,909         1,581
   Accrued liabilities                                      8,218        10,601
   Accrued income taxes                                     3,462         4,549
                                                        ---------     ---------
       Total current liabilities                           24,372        22,721
                                                        ---------     ---------
Long-term obligations, less current maturities                 41            30
                                                        ---------     ---------
Other long-term liabilities                                   855         1,061
                                                        ---------     ---------
Commitments and contingencies (Notes 3 and 7)
Shareholder' equity
   Common stock -- par value $01; 25,000
   shares authorized; 12,975 and 12,833
   shares issued and outstanding in 1998
   and 1997, respectively                                     130           128
Paid-in capital                                            42,359        40,410
Retained earnings                                          44,384        39,168
                                                        ---------     ---------
   Total shareholders' equity                              86,873        79,706
                                                        ---------     ---------
                                                        $ 112,141     $ 103,518
                                                        =========     =========

   The accompanying notes are an integral part of these financial statements.

                                       27

<PAGE>


<TABLE>
Statements of Shareholders' Equity

<CAPTION>

                                                                                                                           Total
                                                                      Common Stock           Paid-in      Retained     Shareholders'
(In thousands)                                                   Shares        Amount        Capital      Earnings        Equity
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                               <C>          <C>           <C>           <C>           <C>    
BALANCE, MARCH 31, 1995                                           12,468       $   125       $36,988       $24,984       $62,097
Sale of common stock under Employee Stock
   Purchase Plan                                                      70             1           539          --             540
Sale of common stock under Employee Stock
   Option Plan                                                       110             1           479          --             480
Issuance of common stock as awards to employees                        8          --              74          --              74
Tax benefits from employee stock transactions                       --            --             225          --             225
Net income                                                          --            --            --           6,173         6,173

                                                                 -------       -------       -------       -------       -------
BALANCE, MARCH 31, 1996                                           12,656       $   127       $38,305       $31,157       $69,589
Sale of common stock under Employee Stock
   Purchase Plan                                                      67          --             959          --             959
Sale of common stock under Employee Stock
   Option Plan                                                       105             1           729          --             730
Issuance of common stock as awards to employees                        5          --             102          --             102
Tax benefits from employee stock transactions                       --            --             315          --             315
Net income                                                          --            --            --           8,011         8,011

                                                                 -------       -------       -------       -------       -------
BALANCE, MARCH 31, 1997                                           12,833       $   128       $40,410       $39,168       $79,706
Sale of common stock under Employee Stock
   Purchase Plan                                                      91             1         1,198          --           1,199
Sale of common stock under Employee Stock
   Option Plan                                                        49             1           417          --             418
Issuance of common stock as awards to employees                        2          --              50          --              50
Tax benefits from employee stock transactions                       --            --             284          --             284
Net income                                                          --            --            --           5,216         5,216

                                                                 -------       -------       -------       -------       -------
BALANCE, MARCH 31, 1998                                           12,975       $   130       $42,359       $44,384       $86,873
                                                                 =======       =======       =======       =======       =======

<FN>
                             The accompanying notes are an integral part of these financial statements.
</FN>
</TABLE>

                                                                 28

<PAGE>

<TABLE>

Statements of Cash Flows

<CAPTION>
                                                                                                                Year ended March 31
(In thousands)                                                                                       1998         1997         1996
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                              <C>          <C>          <C>     
Cash flows from operating activities
     Net income                                                                                  $  5,216     $  8,011     $  6,173
     Adjustments to reconcile net income to net cash provided by operating activities:
         Depreciation and amortization                                                              5,807        5,558        5,009
         Issuances of stock to employees under award plans                                             50          102           74
         Change in provision for losses on receivables, contracts and inventories                  (2,041)       1,388          857
         Loss on disposition of property and equipment                                                 20          305          143
     (Increase) decrease in assets:
         Receivables billed and unbilled                                                           (1,549)     (11,803)       5,634
         Inventories                                                                               (6,934)      11,446       (3,492)
         Prepaid expenses and other assets                                                          2,021          724       (1,238)
     Increase (decrease) in liabilities:
         Accounts payable, advance payments and accrued expenses                                    2,782        1,489       (5,851)
         Other long-term liabilities                                                                  (55)         (76)          59
         Accrued and deferred income taxes                                                           (954)       1,463        1,304
                                                                                                 --------     --------     --------
               Net cash provided by operating activities                                            4,363       18,607        8,672
                                                                                                 --------     --------     --------

Cash flows from investing activities:
     Proceeds from maturities (purchase) of short-term investments, net                             5,581      (10,947)      (4,220)
     Purchases of property and equipment                                                           (5,852)      (5,501)      (4,482)
     Proceeds from sale of property and equipment                                                       3           25          438
                                                                                                 --------     --------     --------
               Net cash used in investing activities                                                 (268)     (16,423)      (8,264)
                                                                                                 --------     --------     --------

Cash flows from financing activities:
     Payments on capital lease obligations                                                            (33)         (47)        (154)
     Proceeds from transactions under stock plans                                                   1,617        1,689        1,245
                                                                                                 --------     --------     --------
                  Net cash provided by financing activities                                         1,584        1,642        1,091
                                                                                                 --------     --------     --------

Net increase in cash and cash equivalents                                                           5,679        3,826        1,499

Cash and cash equivalents at beginning of year                                                      8,235        4,409        2,910
                                                                                                 --------     --------     --------
Cash and cash equivalents at the end of year                                                     $ 13,914     $  8,235     $  4,409
                                                                                                 ========     ========     ========
</TABLE>


                                            1998          1997          1996
- --------------------------------------------------------------------------------
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for interest and income taxes
     Interest                              $   19        $    7        $   12
     Income taxes                          $  942        $1,736        $3,987

   The accompanying notes are an integral part of these financial statements.

                                       29

<PAGE>


Notes to Financial Statements


       NOTE 1: THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The Company. Stanford  Telecommunications,  Inc. (the Company),  incorporated in
Delaware,  designs,  manufactures and markets advanced digital telecommunication
products  and systems to  establish or enhance  communications  via  satellites,
terrestrial  wireless and cable.  The  Company's  technical  strengths  include:
system design, communication waveforms,  modulation and demodulation techniques,
ASIC design  Radio  Frequency  (RF)  antennas and  downconverters,  software and
firmware,  Asynchronous  Transfer  Mode (ATM) design and advanced  manufacturing
techniques and processes.  The Company's  government revenues are generated from
U.S.  government  contracts where the Company may be either the prime contractor
or  a  subcontractor.   The  Company's   commercial  revenues  include  contract
manufacturing  revenues,  sales  of  integrated  circuits,  circuit  boards  and
subsystems,  and development programs.  In addition to the U.S. government,  the
principle markets for the Company's products are primarily located in the U.S.

Fiscal Year.  The Company's  fiscal year is comprised of four 13-week  quarters,
each of which ends on the Thursday closest to the corresponding calendar quarter
end. For  convenience,  the Company has  presented  its fiscal year as ending on
March 31.

Use of Estimates.  The  preparation of financial  statements in conformity  with
generally accepted  accounting  principles requires management to make estimates
and assumptions  that effect the reported  amounts of assets and liabilities and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements and the reported  amounts of revenues and expenses during the period.
The Company prepares and evaluates  on-going cost to complete estimates in order
to monitor its project costs.  These  estimates  form the basis for  calculating
revenues and gross margins for each project  under the  percentage-of-completion
method of accounting.  Due to uncertainties  inherent in the estimation process,
estimated total costs are subject to revision on an on-going basis as additional
information  becomes  available.  The estimates are subject to change and actual
results could be materially different from these estimates.

Cash  Equivalents.  The Company  considers  all highly  liquid  securities  with
original maturities of 90 days or less to be cash equivalents.

Short-Term  lnvestments.  Short-term investments are accounted for in accordance
with Statement of Financial  Accounting Standard (SFAS) No. 115, "Accounting for
Certain  Investments  in Debt and Equity  Securities."  At March 31,  1998,  the
Company's short-term  investments consisted of U.S. Treasury securities totaling
$19,493,000  at cost with  unrealized  gains of $270,000.  At March 31, 1997 the
Company's short-term  investments consisted of U.S. Treasury securities totaling
$25,074,000 at cost with unrealized gains of $246,000.  The securities mature at
various dates within one year.

Receivables.  The  Company  provides  a  reserve  for  doubtful  accounts  where
circumstances indicate that one is necessary. As of March 31, 1998 and 1997, the
Company's   reserve  for  doubtful   accounts   was  $711,000  and   $1,023,000,
respectively.

Unbilled   Receivables.   Unbilled  receivables  represent  differences  between
billings and revenues  recognized.  At March 31, 1998,  approximately 70% of the
unbilled  receivables  represent  revenues  recognized on fixed price  contracts
under the percentage-of-completion method of accounting which exceed the amounts
that  are  billable   according  to  contract  terms  and  are  expected  to  be
significantly  collected within one year. In general,  the Company is authorized
to bill between 75% to 100% of the costs  expended on a contract.  The remaining
portion of unbilled receivables at March 31, 1998 represents differences between
actual  indirect  rates and  government  approved  billing  rates  which are not
billable until  approval of final indirect rates by the respective  governmental
agencies.  The Company has received  final  indirect  rate  approval for charges
through fiscal 1995.

Inventories.  Inventories are stated at the lower of cost (first-in,  first-out)
or market. Cost includes materials, labor and related indirect expenses. General
and  administrative   costs  are  only  included  in  inventory  for  government
contracts,  as such  costs are  reimbursed  by the  government.  Work-in-process
mainly  represents  costs  incurred on short-term  contracts.  The components of
inventory are as follows:


(in thousands)                                         1998               1997
- --------------------------------------------------------------------------------
Work-in process                                     $ 11,176            $ 3,721
Finished goods                                         3,066              2,318
Allocated general and administrative costs               136                118
Less: Progress billings                                 (102)              (146)
                                                    --------            -------
                                                    $ 14,276            $ 6,011
                                                    ========            =======


The Company purchases certain inventories that have long purchase lead times and
may be single sourced.  Although there are a limited number of  manufacturers of
these particular inventory items, management believes that other suppliers could
provide similar inventory on comparable  terms. A change in suppliers,  however,
could cause a delay in  manufacturing  and a possible  loss of sales,  which may
affect operating results adversely.

Depreciation and  Amortization.  Depreciation and amortization are provided over
the estimated  useful lives of the assets (3 to 7 years or the term of the lease
if shorter), using the straight-line method.

                                       30

<PAGE>


Accrued Liabilities. Accrued liabilities consist of the following:  

                                                             Year ended March 31
(In thousands)                                           1998               1997
- --------------------------------------------------------------------------------
Compensation and employee benefits                   $  6,543            $ 8,003
Accrued contract cost                                     956              2,054
Other                                                     719                544
                                                     --------           --------
                                                     $  8,218           $ 10,601
                                                     ========           ========


Revenue Recognition.  The Company principally uses the  percentage-of-completion
method of accounting for contract revenues. The percentage-of-completion  method
is based on total costs  incurred to date  compared with  estimated  total costs
upon completion of contracts.  Certain contracts provide for milestone  billings
which are recorded as revenues when the defined  milestones are met. The Company
recognizes revenues for standard,  off-the-shelf products and certain commercial
products  upon  shipment  to the  customer.  The  Company  charges all losses on
contracts to cost of sales in the period when the loss is known.  The  principal
government  agencies to which the Company  sells are the  Department  of Defense
(DoD),  NASA and the FAA.  The DoD  accounted  for  33%,  33%,  and 31% of total
revenues in 1998, 1997, and 1996, respectively.

Earnings Per Share.  Effective  December 15, 1997, the Company adopted Statement
of Financial  Accounting  Standard No. 128 ("SFAS  128"),  "Earnings Per Share."
SFAS 128  requires  companies  to  compute  earnings  per  share  following  two
different methods, basic and diluted. Basic earnings per share is computed based
on the weighted  average number of common shares  outstanding.  Diluted earnings
per share is computed  based on the  weighted  average  number of common  shares
outstanding plus dilutive  potential common shares calculated in accordance with
the treasury stock method.  The Company's  dilutive  potential common shares are
stock options.  Options to purchase 86,000,  75,000,  and 56,000 weighted shares
outstanding  during 1998,  1997 and 1996  respectively  were  excluded  from the
computation of diluted  earnings per share because the options'  exercise prices
were greater than the average market price of the Company's  common stock during
those  years.  Basic  and  diluted  earnings  per  share  for  the  Company  are
substantially  the same.  Accordingly  they have been  reported  together in the
Statements of Income.

Concentration of Credit Risk.  Financial  instruments which potentially  subject
the  Company  to  concentrations  of credit  risk  consist  principally  of cash
equivalents,  short-term investments,  and trade receivables.  Concentrations of
credit risk with respect to trade  receivables are limited due to a balanced mix
of  receivables  due from the U.S.  government  and  other  customers  which are
dispersed across different industries and geographic regions.

Classification.  Consistent  with  industry  practice,  assets  and  liabilities
relating to government  long-term contracts are classified as current although a
portion of these amounts is not expected to be realized within one year.


                             NOTE 2: LINE OF CREDIT

On December 12, 1997, the Company amended its bank line agreement  extending the
expiration  date until December 18, 1998. The Company has  $15,000,000 in credit
under this line, all of which is available at March 31, 1998. Under this line of
credit the Company must maintain certain  financial  covenants.  As of March 31,
1998, the Company was in compliance with all such covenants.


                               NOTE 3: COMMITMENTS

The  Company  leases  its  buildings  and other  equipment  under  noncancelable
operating  lease  agreements  that expire at various  dates  through  2008.  The
Company also leases certain office  equipment  under capital leases which expire
during 2003.  The terms of several of the Company's  leases provide for deferral
of cash  rental  payments  over  various  periods.  Rental  expense  under these
agreements  is  recognized on a  straight-line  basis.  As of March 31, 1998 the
Company has accrued approximately  $717,000 in related expense which is included
in other long-term  liabilities in the accompanying  balance sheet.  Approximate
future minimum lease payments under these leases are as follows (in thousands):

Year Ended March 31                          Operating Leases     Capital Leases
- --------------------------------------------------------------------------------
1999                                                 $ 4,617            $    45
2000                                                   5,021                 25
2001                                                   5,006                  8
2002                                                   3,471                  8
2003                                                   3,380                  6
Thereafter                                            12,619                 --
                                                    --------            --------
Total minimum lease payments                        $ 34,114                 92
                                                    ========            --------
Less: Interest                                                               (7)
                                                                        --------
                                                                             85
                                                                        --------
Less: Current portion                                                       (44)
                                                                        --------
                                                                        $    41
                                                                        ========


Lease  payments  and  other  rental  expenses  charged  to  operations   totaled
approximately $4,676,000,  $4,279,000,  and $4,272,000 for the years ended March
31, 1998, 1997, and 1996, respectively.  During 1998, 1997, and 1996 the Company
acquired equipment under capital in the amounts of $41,000, $30,000, and $8,000,
respectively.

                                       31

<PAGE>


                             NOTE 4: RETIREMENT PLAN

The Company  maintains a defined  contribution  plan covering  substantially all
employees.  Amounts  contributed are based on a percentage of eligible employees
annual compensation.  Percentages  contributed equaled 3% in 1998 and 4% in 1997
and  1996  respectively.   The  Company's  contributions  totaled  approximately
$1,403,000 in 1998,  $1,566,000 in 1997,  and  $1,425,000 in 1996. The Plan also
permits  eligible  employees  to  make  voluntary   before-tax  salary  deferral
contributions.


                              NOTE 5: INCOME TAXES

The  provision  for income  taxes  charged to  operations  was  comprised of the
following:

                                                             Year ended March 31
(In thousands)                                 1998          1997          1996
- --------------------------------------------------------------------------------
Provision for (benefit from) income taxes:
Current
   Federal                                  $ 1,570       $ 3,602       $ 4,422
   State                                        176           555           233
Deferred, net
   Federal                                      647            96        (1,470)
   State                                        (50)          (34)          (75)
                                            -------       -------       -------
Net tax provision                           $ 2,343       $ 4,219       $ 3,110
                                            =======       =======       =======


The  provision for income taxes for the three years ended March 31, 1998 differs
from the U.S. statutory rate principally as follows:

                                                             Year ended March 31
                                                    1998       1997       1996
- --------------------------------------------------------------------------------
Statutory Federal income tax rate                   34.0%      35.0%      34.0%
State income taxes, net of Federal benefit           1.5%       2.8%       1.7%
Research and development credits                    (7.3)%     (3.6)%     (1.0)%
Other                                                2.8%        .3%       1.0%
Change in valuation allowance                         --         --       (2.2)%
                                                    ----       ----       ---- 
Effective income tax rate                           31.0%      34.5%      33.5%
                                                    ====       ====       ==== 


The major  components  of deferred tax assets and  liabilities  consisted of the
following:

                                                             Year ended March 31
(In thousands)                                                1998         1997
- --------------------------------------------------------------------------------
Deferred tax asset
Reserves and accruals not currently
  deductible for tax purposes                              $ 3,235      $ 4,644
Tax credits                                                    373          256
Accelerated depreciation                                       223          --
                                                           -------      -------
     Total deferred tax asset                                3,831        4,900
                                                           -------      -------
Deferred tax liability:
Accelerated depreciation                                       --          (151)
Percentage of completion contract accounting                  (610)        (931)
                                                           -------      -------
     Total  deferred tax liability                            (610)      (1,082)
                                                           =======      ========
Net deferred tax asset                                     $ 3,221      $ 3,818
                                                           =======      ========


The  $3,221,000 net deferred tax asset as of March 31, 1998 was allocated on the
accompanying  balance sheet with $223,000  included in other assets,  $1,361,000
included in prepaid  expenses and other,  and the remaining amount of $1,637,000
is netted against accrued income taxes.

                                       32

<PAGE>

                              NOTE 6: COMMON STOCK

On January 29, 1997,  the  Company's  Board of Directors  declared a two-for-one
split  of the  Company's  common  stock  effected  in the  form of a 100%  stock
dividend  distributed  on  February  28,  1997 to  shareholders  of record as of
February 10, 1997.  Approximately 6.4 million shares of common stock were issued
in connection with the split. The stated par value of each share was not changed
from $.01.  A total of  $64,000  was  reclassified  from the  Company's  paid-in
capital account to the Company's  common stock account.  All share and per share
amounts   included  in  these   financial   statements  have  been  restated  to
retroactively reflect the stock split.

On June 26, 1996, the Company's  stockholders approved an amendment to Article 4
of  the  Company's  Certificate  of  Incorporation,  increasing  the  number  of
authorized  shares of common  stock  with a par  value  $.01 per share  ("common
stock"),  from  15,000,000  to  25,000,000.  On  February  6, 1997,  the Company
registered the additional authorized shares.

On May 9, 1995, the Board of Directors  adopted a Stockholder's  Rights Plan and
declared a dividend of one Common Share  Purchase  Right (the  "Right") for each
share of the  Company's  common stock  outstanding  on May 25, 1995.  Each Right
entitles the holder thereof to purchase one share of the Company's  common stock
for $30.  The Rights will be  exercisable  if a person or group  acquires 15% or
more of the Company's  common stock.  Upon such  acquisition,  each Right (other
than those held by the acquiring  person or group) will be  exercisable  for the
number of shares of the  Company's  common  stock  having a market value at that
time of twice the  exercise  price of the  Right.  If the  Company  subsequently
enters into certain business combinations,  each Right (other than those held by
the acquiring  person or group) will be exercisable for that number of shares of
common  stock of the other  party to the  business  combination  having a market
value of two times the  exercise  price of the Right.  The Rights are subject to
redemption at the option of the Board of Directors at a price of $.01 per Right.
The Rights expire on May 9, 2005.

The  Company's  1991 Stock  Option  Plan  provides  for the  issuance  of either
incentive  or  non-qualified  options  to  employees  and  certain  non-employee
directors.  Incentive  options can be granted at an exercise price not less than
fair market value of the stock on the date of grant.  Non-qualified  options can
be granted at an exercise  price not less than 85% of the fair  market  value of
the  stock  on the date of the  grant.  Options  granted  under  the  1991  Plan
generally vest 25% one year after the date of grant and rateably thereafter over
three years and options  generally  expire ten years from the date of grant. The
1991 Plan will expire in the year 2001.


Information with respect to this plan is as follows:

                                              1991 Stock Option Plan
                                     -------------------------------------------
                                                                       Average
                                     Available                         Option
                                     for Grant        Outstanding      Prices
- --------------------------------------------------------------------------------
BALANCE, MARCH 31, 1995                393,470          549,084       $    6.66
                                     ---------        ---------       ---------
Additional authorized                1,000,000               --              --
Granted                               (365,442)         365,442            7.85
Exercised                                   --         (101,358)           4.53
Terminated                             115,802         (115,802)           7.30
                                     ---------        ---------       ---------
BALANCE, MARCH 31, 1996              1,143,830          697,366       $    7.49
Granted                               (375,300)         375,300           16.54
Exercised                                   --          (64,534)           7.65
Terminated                              45,711          (45,711)          10.39
                                     ---------        ---------       ---------
BALANCE, MARCH 31, 1997                814,241          962,421       $   10.92
Granted                               (167,900)         167,900           16.57
Exercised                                   --          (49,409)           8.51
Terminated                              45,222          (45,222)          13.08
                                     ---------        ---------       ---------
BALANCE, MARCH 31, 1998                691,563        1,035,690       $   11.85
                                     =========        =========       =========

                                       33

<PAGE>

<TABLE>
Under the 1991 Stock Option Plan the options outstanding are as follows:

<CAPTION>
                                            1991 Stock Options Outstanding        1991 Stock Options Exercisable
                               -------------------------------------------------- -----------------------------
                                               Weighted Average
                                  Number          remaining      Weighted Average   Number     Weighted Average
March 31, 1998                 Outstanding     Contractual Life   Exercise Price  Exercisable   Exercise Price
- ---------------------------------------------------------------------------------------------------------------
<S>                                <C>             <C>                <C>           <C>             <C>   
Range of exercise prices:
$2.50--$7.25                       274,578         6.l3 years         $ 6.74        266,078         $ 6.75
$7.38--$18.69                      211,652         2.41 years         $ 7.93        148,991         $ 8.02
$9.06--$14.88                      273,010         7.30 years         $13.51        103,860         $12.77
$15.25--$21.00                     251,450         8.78 years         $17.71         69,000         $20.52
$23.00--$31.50                      25,000         8.l3 years         $24.22         21,250         $23.36
                                 ---------                                          -------
     Total                       1,035,690                                          609,179
                                 =========                                          =======
</TABLE>


Pro Forma  Information.  The Company  applies APB No. 25  "Accounting  for Stock
Issued to Employees"  and related  interpretations  in accounting  for the stock
compensatory  plans (the  Plans).  Accordingly,  no  compensation  cost has been
recognized for the Plans. If compensation cost for the Plans had been determined
consistent  with SFAS No. 123 "Accounting  for  Stock-Based  Compensation",  the
Company's  net income and  earnings per share would have been reduced to the pro
forma amounts indicated below:


(In thousands, except per share data)            1998      1997      1996
- --------------------------------------------------------------------------
Net income
   As reported                                 $ 5,216   $ 8,011   $ 6,173
   Pro forma                                   $ 4,037   $ 6,755   $ 5,615

Earning per share -- basic and diluted
   As reported                                 $  0.40   $  0.61   $  0.49
   Pro forma                                   $  0.31   $  0.52   $  0.44


Because the method of accounting  prescribed by SFAS No.123 has not been applied
to options granted prior to April 1, 1995, and because the Black-Scholes  option
valuation  model was  developed  for traded  options and  requires  the input of
subjective  assumptions,  the resulting pro forma  compensation  cost may not be
representative of that to be expected in future years

The fair  value of each  option  grant is  estimated  based on the date of grant
using the Black-Scholes option pricing model with the following assumptions used
for 1998,  1997 and 1996:  risk-free  interest rates of  approximately  6.6% for
1998, 6.0% for 1997 and 6.1% for 1996,  dividend yields of 0%, volatility factor
of the  expected  market  price of the  Company's  common  stock  of 73%,  and a
weighted average  expected life of an option of  approximately  three (3) years.
The weighted  average fair values of options  granted in fiscal years 1998, 1997
and 1996 respectively were $8.33, $7.34 and $3.37.

Under the 1992 Employee  Stock  Purchase  Plan,  the Company makes  offerings of
common  stock to its  employees  at such time and of such  duration as its Board
determines.  A total of 400,000  shares of common  stock has been  reserved  for
issuance.  In fiscal  years  1998,  1997 and 1996,  the  Company has sold 90,631
shares,  66,512 shares and 70,788  shares.  The weighted  average fair values of
such  shares for fiscal  years 1998,  1997 and 1996 were $4.88,  $5.27 and $2.41
respectively.  As of March  31,  1998,  75,20l  shares  remained  available  for
purchase.


                      NOTE 7: LITIGATION AND CONTINGENCIES

The Company is  contingently  liable with respect to lawsuits and other  matters
which  arise in the normal  course of  business.  The  Company  must comply with
detailed  government  procurement and contracting  regulations.  The Company has
prepared and presented  documentation  and support to a customer  addressing its
post-award audit  recommendations.  Management believes that the outcome of such
contingencies will not have a material adverse effect on the Company's financial
position or results of operations.

                                       34

<PAGE>


<TABLE>
Selected Financial Data

<CAPTION>
                                                                                                                 Year ended March 31
(In thousands, except per share data)                                 1998          1997          1996          1995          1994
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                 <C>           <C>           <C>           <C>           <C>     
SUMMARY OF OPERATIONS
Revenues                                                            $153,260      $167,002      $145,100      $114,384      $ 98,055
Operating income                                                       5,663        10,894         8,444         1,620         4,498
Income before change in accounting method                              5,216         8,011         6,173           131         2,836
Cumulative effect of change in accounting method                          --            --            --            --           700
Net income                                                             5,216         8,011         6,173           131         3,536
Earnings per share before change in
accounting method-- diluted                                             0.40          0.61          0.49          0.01          0.27
Cumulative effect of change in accounting method                          --            --            --            --          0.07
Weighted average number of common
   and potential common shares outstanding                            13,179        13,070        12,702        12,484        10,394


FINANCIAL POSITION
Current assets                                                      $ 97,471      $ 89,131      $ 76,152      $ 71,994      $ 60,125
Current liabilities                                                   24,372        22,721        19,657        24,035        11,466
Working capital                                                       73,099        66,410        56,495        47,959        48,659
Current ratio                                                            4.0           3.9           3.9           3.0           5.2
Property and equipment, net                                           14,135        14,113        14,500        15,608        14,005
Total assets                                                        $112,141      $103,518      $ 90,948      $ 88,005      $ 74,503
Long-term debt                                                            41            30            85           161           235
Shareholders' equity                                                  86,873        79,706        69,589        62,097        61,367
Common stock outstanding                                              12,975        12,833        12,656        12,468        12,362
Book value per share                                                $   6.70      $   6.21      $   5.50      $   4.98      $   4.96
</TABLE>


                                QUARTERLY RESULTS

<TABLE>
Statements of Operations  Data. The following  table  presents  summaries of the
Company's  financial  results by quarter  for fiscal  year 1998,  1997 and 1996.
These quarterly  financial results are unaudited.  In the opinion of management,
however,  they have been  prepared  on the same basis as the  audited  financial
information and include all adjustments necessary for a fair presentation of the
information  set forth  therein.  The operating  results for any quarter are not
necessarily  indicative  of the  results  that may be  expected  for any  future
period.

<CAPTION>
(In thousands, except per share data)                                                                                           1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                1st Quarter        2nd Quarter        3rd Quarter        4th Quarter
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                 <C>                <C>                <C>                <C>    
Revenues                                                            $35,331            $36,838            $40,713            $40,378
Gross profit                                                          8,901              9,373              9,935              8,422
Net income                                                            1,382                928              1,577              1,329
Earnings per share-- diluted                                        $  0.11            $  0.07            $  0.12            $  0.10

                                                                                                                                1997
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                1st Quarter        2nd Quarter        3rd Quarter        4th Quarter
- ------------------------------------------------------------------------------------------------------------------------------------
Revenues                                                            $40,843            $41,058            $42,028            $43,073
Gross profit                                                          8,850             10,169              9,723             10,828
Net income                                                            1,888              1,911              1,960              2,252
Earnings per share-- diluted                                        $  0.14            $  0.15            $  0.15            $  0.17


                                                                                                                                1996
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                1st Quarter        2nd Quarter        3rd Quarter        4th Quarter
- ------------------------------------------------------------------------------------------------------------------------------------
Revenues                                                            $35,952            $35,597            $36,384            $37,168
Gross profit                                                          6,076              7,382              7,462              8,167
Net income                                                            1,126              1,403              1,613              2,031
Earnings per share-- diluted                                        $  0.09            $  0.11            $  0.13            $  0.16
</TABLE>

                                                                 35

<PAGE>

Selected Financial Data


                           SELECTED COMMON STOCK DATA

Stanford  Telecommunications,  Inc.  Common  Stock was  offered to the public on
October 6, 1983,  and since that date has been traded on the NASDAQ stock market
under the symbol STII.  During January 1994,  the Company  completed a secondary
offering of its common  stock.  The price per share  reflected  in the table has
been adjusted for a two-for-one  split of the Company's common stock distributed
to  shareholders  on February 28, 1997 and  represents the closing prices in the
NASDAQ National Market System. The quotations represent inter-dealer quotations,
without  retail  markups,  markdowns  or  commissions,  and may not  necessarily
represent actual transactions.

The  Company  has  not  paid  cash  dividends  on its  Common  Stock  since  its
incorporation  and anticipates that for the foreseeable  future it will continue
to retain its earnings  for use in its  business.  A covenant  under the current
Line of Credit would require prior approval of any cash dividend by the bank.

On March 31,  1998,  there  were  approximately  1,609  holders of record of the
Company's Common Stock.

                                         1998                    1997
                                    -----------------     ------------------
Fiscal year                         High       Low        High         Low
- --------------------------------------------------------------------------------
First Quarter                       20 1/4     14 1/8     32 7/8      13 3/8
Second Quarter                      28         15         30          18 5/8
Third Quarter                       26         15         26 3/4      11 1/4
Fourth Quarter                      20 1/2     14         21 1/16     14 1/2


                              NASDAQ TRADING VOLUME

Fiscal year                                1998                        1997
- --------------------------------------------------------------------------------
Shares                                  20,213,599                   13,475,504


<TABLE>
<CAPTION>
                                                 NASDAQ MARKET MAKERS
<S>                                           <C>                                          <C>
Oppenheimer & Company, Inc.                   Sherwood Securities Corporation              Herzog, Heine, Geduld, Inc.
Mayer & Schweitzer, Inc.                      Dain Rauscher, Inc.                          Troster Singer Corporation
John G. Kinnard & Co., Inc.                   Knight Securities LP                         First Albany Corporation
</TABLE>

                                                          36



                               EXHIBIT NUMBER 23.1


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent public accountants, we hereby consent to the incorporation of our
reports  included in or  incorporated  by reference in this Form 10-K,  into the
Company's previously filed Registration Statements on Forms S-8 (file nos.
33-45090, 33-68534, and 33-63771).


                                                     /s/ Arthur Andersen LLP


San Jose, California
June 18, 1998




<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     THIS SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED FROM THE
     CONSOLIDATED  STATEMENT OF INCOME AND THE CONSOLIDATED BALANCE SHEET AND IS
     QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                              MAR-31-1998
<PERIOD-START>                                 APR-01-1997
<PERIOD-END>                                   MAR-31-1998
<CASH>                                          13,914
<SECURITIES>                                    19,493
<RECEIVABLES>                                   47,869
<ALLOWANCES>                                         0
<INVENTORY>                                     14,276
<CURRENT-ASSETS>                                97,471
<PP&E>                                          54,651
<DEPRECIATION>                                  40,516
<TOTAL-ASSETS>                                 112,141
<CURRENT-LIABILITIES>                           24,372
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           130
<OTHER-SE>                                      86,743
<TOTAL-LIABILITY-AND-EQUITY>                   112,141
<SALES>                                        153,260
<TOTAL-REVENUES>                               153,260
<CGS>                                          116,629
<TOTAL-COSTS>                                  147,597
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  7,559
<INCOME-TAX>                                     2,343
<INCOME-CONTINUING>                              5,216
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     5,216
<EPS-PRIMARY>                                     0.40<F1>
<EPS-DILUTED>                                     0.40<F1>
<FN>
Prepared in Accordance  with FAS 128. Basic and Diluted EPS have been entered in
place of Primary and Diluted EPS.
</FN>        


</TABLE>


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