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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 3)*
DATRON SYSTEMS INCORPORATED
(Name of Issuer)
COMMON STOCK
(Title of Class of Securities)
238173108
(CUSIP Number)
December 31, 1998
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[ ] Rule 13d-1(b)
[ ] Rule 13d-(c)
[ ] Rule 13d-1(d)
*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).
Page 1 of 5 pages
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CUSIP No. 238173108 13G Page 2 of 5 Pages
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NAMES OF REPORTING PERSONS.
1 I.R.S. IDENTIFICATION NOs. OF ABOVE PERSONS
HEARTLAND ADVISORS, INC.
#39-1078128
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CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
2 (a) [_]
(b) [_]
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SEC USE ONLY
3
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CITIZENSHIP OR PLACE OF ORGANIZATION
4 WISCONSIN, U.S.A.
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SOLE VOTING POWER
5
NUMBER OF
498,800
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
OWNED BY None
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EACH SOLE DISPOSITIVE POWER
7
REPORTING
805,800
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
None
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
805,800
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CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
10
[_]
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
29.9%
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TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
12
IA
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CUSIP NUMBER 238173108 Page 3 Of 5 Pages
Item 1.
(a) Name of Issuer:
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Datron Systems Incorporated
(b) Address of Issuer's Principal Executive Offices:
-----------------------------------------------
304 Enterprise Street
Escondido, CA 92029-1297
Item 2.
(a) Name of Person Filing:
---------------------
Heartland Advisors, Inc.
(b) Address of Principal Business Office:
------------------------------------
Heartland Advisors, Inc.
790 North Milwaukee Street
Milwaukee, WI 53202
(c) Citizenship:
-----------
Heartland Advisors is a Wisconsin corporation.
(d) Title of Class of Securities:
----------------------------
Common Stock
(e) CUSIP Number:
------------
238173108
Item 3. If this statement is filed pursuant to (S)(S) 240.13d-1(b) or
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240.13d-2(b) or (c), check whether the person filing is a:
----------------------------------------------------------
(a)_____ Broker or Dealer registered under Section 15 of
the Act (15 U.S.C. 78o).
(b)_____ Bank as defined in Section 3(a)(6) of
the Act (15 U.S.C. 78c).
(c)_____ Insurance company as defined in Section 3(a)(19)
of the Act (15 U.S.C.78c).
(d)_____ Investment company registered under section 8 of
the Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e) X An investment adviser in accordance with
----- (S) 240.13d-1(b)(1)(ii)(E);
(f)_____ An employee benefit plan or endowment fund in accordance with
(S)240.13d-1(b)(1)(ii)(F).
3
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(g)_____ A parent holding company or control person in accordance with
(S)240.13d-1(b)(ii)(G);
(h)_____ A savings association as defined in Section 3(b) of the
Federal Deposit Insurance Act (12 U.S.C. 1813;
(i)_____ A church plan that is excluded from the definition of an
investment company under section 3(c)(14) of the Investment
Company Act of 1940 (15 U.S.C. 80a-3);
(j)_____ Group, in accordance with (S)240.13d-1(b)(1)(ii)(J).
If this statement is filed pursuant to (S)240.13d-1(c), check this box [ ].
Item 4. Ownership.
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(a) Amount beneficially owned:
--------------------------
805,800 shares may be deemed beneficially owned within the meaning of
Rule 13d-3 of the Securities Exchange Act of 1934 by Heartland Advisors,
Inc.
(b) Percent of Class:
-----------------
29.9%
(c) For information on voting and dispositive power with respect to the
above listed shares, see Items 5-8 of the Cover Page.
Item 5. Ownership of Five Percent or Less of a Class.
--------------------------------------------
If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of
more than five percent of the class of securities, check the following:
[_]
Item 6. Ownership of more than Five Percent on Behalf of Another
--------------------------------------------------------
Person.
-------
The shares of common stock to which this Schedule relates are held in
investment advisory accounts of Heartland Advisors, Inc. As a result,
various persons have the right to receive or the power to direct the
receipt of dividends from, or the proceeds from the sale of, the
securities. The interests of one such account, Heartland Value Fund, a
series of Heartland Group, Inc., a registered investment company,
relates to more than 5% of the class.
Item 7. Identification and Classification of the Subsidiary Which Acquired the
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Security Being Reported on By the Parent Holding Company.
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Not Applicable.
Item 8. Identification and Classification of Members of the Group.
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Not Applicable.
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Item 9. Notice of Dissolution of Group.
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Not Applicable.
Item 10. Certification.
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By signing below, I certify that, to the best of my knowledge and
belief, the securities referred to above were acquired and are held in
the ordinary course of business and were not acquired and are not held
for the purpose of or with the effect of changing or influencing the
control of the issuer of the securities and were not acquired and are
not held in connection with or as a participant in any transaction
having that purpose or effect.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
DATE: January 5, 1999
HEARTLAND ADVISORS, INC.
By: PATRICK J. RETZER
Patrick J. Retzer
Senior Vice President
