MICRODYNE CORP

Q: Dec 31 1998

FY: Sep 30 1998

FY: Sep 30 1998

Q: Jun 30 1998

FY: Sep 28 1997

Q: Mar 31 1998

Q: Feb 13 1998

FY: Sep 28 1997

Q: Jun 29 1997

Q: Mar 30 1997

Q: Dec 29 1996

FY: Sep 29 1996

Q: Aug 14 1996

Q: May 15 1996

Q: Dec 31 1995

FY: Jan 2 1996

Q: Aug 14 1995

Q: May 15 1995

1,7

7

2,7

8

Current report pursuant to Section 13 or 15(d)

Current report pursuant to Section 13 or 15(d) (amendment)

Prospectus Supplement for Delayed or Continuous Offering

Prospectus Supplement for Delayed or Continuous Offering

Prospectus Supplement for Delayed or Continuous Offering

Prospectus Supplement for Delayed or Continuous Offering

Prospectus Supplement for Delayed or Continuous Offering

Prospectus Supplement for Delayed or Continuous Offering

Notice of Effectiveness

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Registration statement under Securities Act of 1933

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Definitive Proxy Statement

Definitive Proxy Statement

Required Information in Proxy Statement

Definitive Proxy Statement

STATE OF WISCONSIN INVESTMENT BOARD

L 3 COMMUNICATIONS HOLDINGS INC

MICRODYNE CORP

L 3 COMMUNICATIONS HOLDINGS INC

STATE OF WISCONSIN INVESTMENT BOARD

CUNNINGHAM PHILIP T

STATE OF WISCONSIN INVESTMENT BOARD

CUNNINGHAM PHILIP T