EXHIBIT 4.2

                              RADYNE COMSTREAM INC.

               Amendment No. 3 to 1996 Incentive Stock Option Plan


     WHEREAS Radyne  ComStream  Inc., a New York  corporation  (the  "Company"),
considers it desirable and in its best  interests  that employees of the Company
and its  subsidiaries  and  non-employee  directors  of the  Company be given an
inducement  to  acquire  a  proprietary  interest  in the  Company  as an  added
incentive to advance the interests of the Company;

     WHEREAS on  November  13,  1996,  the  Company's  Board of  Directors  (the
"Board") adopted its 1996 Incentive Stock Option Plan (the "Plan");

     WHEREAS the Plan was amended on October 6, 1998 and  February 9, 1999;  and

     WHEREAS the Company has determined  that the Plan should be further amended
to make non-employee directors eligible to receive options under the Plan.

     NOW, THEREFORE, the Plan is amended as follows:

     1.   The first  sentence of Section 3 of the Plan is hereby amended to read
          as follows:

          All employees of the Company and its subsidiaries and all directors of
     the Company who are not employees of the Company or any subsidiary  thereof
     ("Non-Employee  Directors") may be offered an opportunity to participate in
     the Plan as herein provided.


     2.   The first paragraph of Section 7 of the Plan is hereby amended to read
          as follows:

          Notwithstanding  any  other  provision  of the  Plan or any  agreement
     evidencing  options granted  hereunder,  each option granted under the Plan
     shall  terminate  not later than ten (10) years (five (5) years in the case
     of an option granted to a Major Shareholder) after the date on which it was
     granted.  Each option granted to an employee of the Company or a subsidiary
     thereof under the Plan shall be exercisable by the option holder only while
     he is an  employee  of the  Company,  or of a parent or  subsidiary  of the
     Company,  subject to the provisions of Sections 10, 11 and 12 hereof.  Each
     option  granted  to  a  Non-Employee  Director  under  the  Plan  shall  be
     exercisable  by the  option  holder  only  while  he is a  director  of the
     Company,  subject to the provisions of Sections 10 and 11 hereof.  The date
     of grant of an option  shall,  for all  purposes,  be the date on which the
     Board makes the determination granting such option.







     3.   The first  paragraph  of Section  10 of the Plan is hereby  amended to
          read as follows:

          Upon  termination of employment or status as a  Non-Employee  Director
     for any  reason,  except as  provided  in Section 11 or 12 hereof or in the
     agreement  evidencing  such  option,  a person to whom an option is granted
     may, at any time within three (3) months after the date of such termination
     (but in no event later than the date of  expiration of the option under the
     provisions  of Section 7 hereof or those of any agreement  evidencing  such
     option),  exercise the option to the extent, and only to the extent, he was
     entitled to do so on the date of  termination.  Any  options of  terminated
     optionees not so exercised shall forthwith terminate.

     4.   Section 11 of the Plan is hereof amended to read as follows:

          If any person to whom an option has been granted  shall die (i) during
     the  period of his  employment  by the  Company  or a parent or  subsidiary
     thereof or in the status of a  Non-Employee  Director  or within  three (3)
     months after the  termination of such employment or status and (ii) holding
     an option which has not been fully exercised,  his estate or any person who
     acquired the right to exercise the option by bequest or  inheritance  or by
     reason of the death of such  person  may,  at any time  during  the six (6)
     month  period (or such longer  period as the Board shall in its  discretion
     provide in the  agreement  evidencing  such option)  after the date of such
     death (but in no event after the option has expired under the provisions of
     Section 7 hereof)  exercise  the option  with  respect  to the  unexercised
     balance of the shares subject to the option to the extent,  and only to the
     extent,  the decedent  could have exercised the option  immediately  before
     death.

     5.   Section 13 of the Plan is hereby amended to read as follows:

          Each person to whom a stock option is granted  under the Plan shall be
     required  to  enter  into  a  stock  option  agreement  with  the  Company,
     providing,  inter alia, that he shall obligate himself: (1) not to disclose
     any trade or secret data or any other confidential  information acquired by
     him during his  employment  by the Company or a parent or subsidiary of the
     Company or while acting as a Non-Employee Director; and (2) to abide by all
     the terms and conditions of the Plan and such other terms and conditions as
     may be imposed by the Board.

     6. All options  granted to  Non-Employee  Directors under the Plan shall be
evidenced by option  agreements  in such form as may be approved by the Board of
Directors of the Company consistent with the terms of the Plan, as modified;







     7. This  Amendment  shall be of no force or effect  unless  approved,  by a
majority vote of the shareholders of the Company, within 12 months following the
date set forth in the succeeding paragraph; and

     8. This Amendment shall be considered effective as of April 27, 1999.