SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  ------------

                                 SCHEDULE TO/A
                                 (RULE 14d-100)
                 Tender Offer Statement Under Section 14(d)(1)
           or Section 13(e)(1) of the Securities Exchange Act of 1934
                      (AMENDMENT NO. 6 - FINAL AMENDMENT)*
                          SCHEDULE 13D AMENDMENT NO. 2


                               IFR SYSTEMS, INC.
                       (Name of Subject Company (issuer))

                            TESTCO ACQUISITION CORP.
                          a wholly owned subsidiary of

                             AEROFLEX INCORPORATED
                      (Names of Filing Persons (offerors))

                                  ------------

                     Common Stock, Par Value $.01 Per Share
           (Including the Associated Rights to Purchase Common Stock)
                         (Title of Class of Securities)

                                  ------------

                                   449507102
                     (CUSIP Number of Class of Securities)

                                 Michael Gorin
                                   President
                             Aeroflex Incorporated
                             35 South Service Road
                              Plainview, NY 11803
                           Telephone: (516) 694-6700
          (Name, address and telephone number of person authorized to
         receive notices and communications on behalf of filing persons)

                                    Copy to:

Blaine V. Fogg, Esq.                     Nancy D. Lieberman, Esq.
Skadden, Arps, Slate, Meagher & Flom LLP Blau, Kramer, Wactlar & Lieberman, P.C.
Four Times Square                        100 Jericho Quadrangle
New York, NY 10036                       Jericho, NY 11753
Telephone: 212-735-3000                  Telephone: 516-822-4820

                           CALCULATION OF FILING FEE


- --------------------------------------------------------------------------------
Transaction Valuation**                            Amount Of Filing Fee***
                                                     
    $12,485,984                                         $1,149
- --------------------------------------------------------------------------------

<FN>

**   Estimated for the purpose of calculating  the filing fee only in accordance
     with Rule 0-11(d)  under the  Securities  Exchange Act of 1934, as amended,
     based upon (a) $1.35  multiplied by (b) 9,248,877,  representing the number
     of shares of common  stock,  par value $.01 per share of IFR Systems,  Inc.
     (including the associated  rights to purchase  common stock,  the "Shares")
     outstanding as of April 19, 2002 plus the maximum number of Shares issuable
     pursuant to outstanding options. The amount of the filing fee calculated in
     accordance  with Section 13(e) of the  Securities  Exchange Act of 1934, as
     amended, equals the product of .000092 and the transaction value.

***  The filing fee was previously paid.
</FN>


[ ]  Check  the  box if any  part of the fee is  offset  as  provided  by Rule
     0-11(a)(2)  and  identify  the  filing  with which the  offsetting  fee was
     previously  paid.  Identify the previous filing by  registration  statement
     number or the Form or Schedule and the date of its filing.

     Amount Previously Paid: N/A                Form or Registration No.: N/A
     Filing party: N/A                          Date Filed: N/A

[ ]  Check the box if the filing relates solely to preliminary  communications
     made before the commencement of a tender offer.

- --------------------------------------------------------------------------------

Check the  appropriate  boxes below to designate any  transactions  to which the
statement relates:

   [X] third-party tender offer subject to Rule 14d-1.

   [ ] issuer tender offer subject to Rule 13e-4.

   [ ] going-private transaction subject to Rule 13e-3.

   [ ] amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results
of the tender offer: [ ]
- --------------------------------------------------------------------------------

* This Amendment No. 6 - Final Amendment also constitutes Amendment No. 2 to the
Schedule 13D of the Filing Persons with respect to the Securities of the Subject
Company  purchased by the Filing Persons in the Offer,  including the subsequent
offering  period.  The  information  contained  herein and in the  Tender  Offer
Statement on Schedule TO, as amended,  is incorporated by reference for purposes
of the Schedule 13D.


==============================================================================


                                SCHEDULE 13D

     CUSIP No. 449507102
     -----------------------------------------------------------------------
     1.   NAMES OF REPORTING PERSONS/
          I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)
          Aeroflex Incorporated
          IRS Id. No: 11-1974412
         -------------------------------------------------------------------
     2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                           (a)  ( )
                                                           (b)  (X)
     -----------------------------------------------------------------------
     3.   SEC USE ONLY

     -----------------------------------------------------------------------
     4.   SOURCE OF FUNDS*
          WC
     -----------------------------------------------------------------------
     5.   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEM 2(d) or 2(e)                    (  )

     -----------------------------------------------------------------------
     6.   CITIZENSHIP OR PLACE OF ORGANIZATION
            Delaware
     -----------------------------------------------------------------------
                                      7.   SOLE VOTING POWER
           NUMBER OF                       0
            SHARES                 _________________________________________
         BENEFICIALLY                 8.   SHARED VOTING POWER
           OWNED BY                        7,415,481
             EACH                  _________________________________________
           REPORTING                  9.   SOLE DISPOSITIVE POWER
            PERSON                         0
             WITH                  _________________________________________
                                     10.   SHARED DISPOSITIVE POWER
                                           7,415,481
     -----------------------------------------------------------------------
     11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                                           7,415,481
     -----------------------------------------------------------------------
     12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN
          SHARES                                        (  )
     -------------------------------------------------------------------
     13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

                                   89.5%(1)
     -------------------------------------------------------------------
     14.  TYPE OF REPORTING PERSON
          CO

- ------------------------
(1)  Based on the 8,282,000 shares issued and outstanding as of the close of
     business on April 12, 2002.

SCHEDULE 13D

     CUSIP No.  449507102
     -----------------------------------------------------------------------
     1.   NAMES OF REPORTING PERSONS/
          I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only)
          Testco Acquisition Corp.
          IRS Id. No:  32-0010978
         -------------------------------------------------------------------
     2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                           (a)  ( )
                                                           (b)  (X)
     -------------------------------------------------------------------
     3.   SEC USE ONLY

     -------------------------------------------------------------------
     4.   SOURCE OF FUNDS*
          AF
     -------------------------------------------------------------------
     5.   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEM 2(d) or 2(e)                    (  )

     -------------------------------------------------------------------
     6.   CITIZENSHIP OR PLACE OF ORGANIZATION
            Delaware
     -------------------------------------------------------------------
                                      7.   SOLE VOTING POWER
           NUMBER OF                       0
            SHARES                 _____________________________________
         BENEFICIALLY                 8.   SHARED VOTING POWER
           OWNED BY                        7,415,481
             EACH                  _____________________________________
           REPORTING                  9.   SOLE DISPOSITIVE POWER
            PERSON                         0
             WITH                  _____________________________________
                                     10.   SHARED DISPOSITIVE POWER
                                           7,415,481
     -------------------------------------------------------------------
     11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                                           7,415,481
     -------------------------------------------------------------------
     12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN
          SHARES                                        (  )
     -------------------------------------------------------------------
     13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

                                   89.5%(1)
     -------------------------------------------------------------------
     14.  TYPE OF REPORTING PERSON
          CO

- ----------------
(1)  Based on the 8,282,000 shares issued and outstanding as of the close of
     business on April 12, 2002.


     This  Amendment  No. 6 to the Tender  Offer  Statement  on Schedule TO (the
"Schedule TO"),  filed initially with the Securities and Exchange  Commission on
April 19, 2002,  relates to the offer by Testco  Acquisition  Corp.,  a Delaware
corporation  (the  "Purchaser")  and  a  wholly  owned  subsidiary  of  Aeroflex
Incorporated,  a  Delaware  corporation  ("Aeroflex"),  to  purchase  all of the
outstanding  shares of common  stock,  par value $.01 per share  (including  the
associated rights to purchase common stock, the "Shares"), of IFR Systems, Inc.,
a Delaware  corporation (the  "Company"),  at a price of $1.35 per Share, net to
the  seller in cash (the  "Offer  Price"),  upon the  terms and  subject  to the
conditions set forth in the Purchaser's Offer to Purchase, dated April 19, 2002,
and  in the  related  Letter  of  Transmittal  (which  together  constitute  the
"Offer"),  previously  filed as exhibits  (a)(1) and (a)(2),  respectively,  the
Schedule TO.

Items 8 and 11.  Interest  in  Securities  of the  Subject  Company;  Additional
Information.

     Items 8 and 11 of the Schedule TO are hereby  amended and  supplemented  to
add the following:

     The Subsequent Offering Period for the Offer expired at 12:00 midnight, New
York City time,  on Friday,  June 14,  2002.  Based on  preliminary  information
provided by the Depositary,  a total of 7,415,481 Shares,  including  guaranteed
deliveries,  have been validly tendered and not withdrawn pursuant to the Offer,
representing  approximately  89.5% of the total outstanding  Shares and 80.2% of
the Shares on a fully diluted basis.

     Pursuant to the terms of the Merger Agreement,  any remaining publicly held
Shares will be acquired in a subsequent second- step merger of the Purchaser and
the Company (the "Merger") upon  satisfaction or waiver of the conditions to the
Merger  under  the  Merger  Agreement,  including  the  approval  of the  Merger
Agreement by holders of Shares if required by applicable law. As a result of the
purchase of 89.5% of the outstanding  Shares by the Purchaser in the Offer,  the
Purchaser has sufficient  voting power to approve the Merger without the vote of
any other holder of Shares. In addition,  if the Purchaser  acquires 90% or more
of the outstanding  Shares pursuant to the tender offer,  the option to purchase
Shares  granted by the Company  under the Merger  Agreement  or  otherwise,  the
Merger would be completed without a vote of holders of Shares in accordance with
applicable law.

     On Monday,  June 17, 2002,  Aeroflex issued a press release  announcing the
closing of the Offer and affirming its intention to cause the Purchaser to merge
with and into the Company in a short form merger. A copy of the press release is
attached hereto as Exhibit (a)(13) and is incorporated herein by reference.


Item 12. Exhibits.

     Item 12 of the Schedule TO is hereby  amended and  supplemented  to add the
following exhibit:

     (a)(13) Press Release, dated June 17, 2002.





                                   SIGNATURE

     After due 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.


                                        TESTCO ACQUISITION CORP.


                                        By:  /s/ Michael Gorin
                                             --------------------------
                                             Name:  Michael Gorin
                                             Title: President