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                                   BY-LAWS

                                      OF

                           PHOENIX MICROWAVE, LTD.
                           (a Delaware corporation)
                         ---------------------------

                                  ARTICLE I

                                 STOCKHOLDERS

         1. CERTIFICATES REPRESENTING STOCK. Certificates representing stock in
the corporation shall be signed by, or in the name of, the corporation by the
Chairman or Vice-Chairman of the Board of Directors, if any, or by the President
or a Vice President and by the Treasurer or an Assistant Treasurer or the
Secretary or an Assistant Secretary of the corporation. Any or all the
signatures on any such certificate may be a facsimile. In case any officer,
transfer agent, or registrar who has signed or whose facsimile signature has
been placed upon a certificate shall have ceased to be such officer, transfer
agent, or registrar before such certificate is issued, it may be issued by the
corporation with the same effect as if he were such officer, transfer agent, or
registrar at the date of issue.

         Whenever the corporation shall be authorized to issue more than one
class of stock or more than one series of any class of stock, and whenever the
corporation shall issue any shares of its stock as partly paid stock, the
certificates representing shares of any such class or series or of any such
partly paid stock shall set forth thereon the statements prescribed by the
General Corporation Law. Any restrictions on the transfer or registration of
transfer of any shares of stock of any class or series shall be noted
conspicuously on the certificate representing such shares.

         The corporation may issue a new certificate of stock or uncertificated
shares in place of any certificate theretofore issued by it, alleged to have
been lost, stolen, or destroyed, and the Board of Directors may require the
owner of the lost, stolen, or destroyed certificate, or his legal
representative, to give the corporation a bond sufficient to indemnify the
corporation against any claim that may be made against it on account of the
alleged loss, theft, or destruction of any such certificate or the issuance of
any such new certificate or uncertificated shares.

         2. UNCERTIFICATED SHARES. Subject to any conditions imposed by the
General Corporation Law, the Board of Directors of the corporation may provide
by resolution or resolutions that some or all of any or all classes or series of
the stock of the corporation shall be uncertificated 

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shares. Within a reasonable time after the issuance or transfer of any
uncertificated shares, the corporation shall send to the registered owner
thereof any written notice prescribed by the General Corporation Law.

         3. FRACTIONAL SHARE INTERESTS. The corporation may, but shall not be
required to, issue fractions of a share. If the corporation does not issue
fractions of a share, it shall (1) arrange for the disposition of fractional
interests by those entitled thereto, (2) pay in cash the fair value of fractions
of a share as of the time when those entitled to receive such fractions are
determined, or (3) issue scrip or warrants in registered form (either
represented by a certificate or uncertificated) or bearer form (represented by a
certificate) which shall entitle the holder to receive a full share upon the
surrender of such scrip or warrants aggregating a full share. A certificate for
a fractional share or an uncertificated fractional share shall, but scrip or
warrants shall not unless otherwise provided therein, entitle the holder to
exercise voting rights, to receive dividends thereon, and to participate in any
of the assets of the corporation in the event of liquidation. The Board of
Directors may cause scrip or warrants to be issued subject to the conditions
that they shall become void if not exchanged for certificates representing the
full shares or uncertificated full shares before a specified date, or subject to
the conditions that the shares for which scrip or warrants are exchangeable may
be sold by the corporation and the proceeds thereof distributed to the holders
of scrip or warrants, or subject to any other conditions which the Board of
Directors may impose.

         4. STOCK TRANSFERS. Upon compliance with provisions restricting the
transfer or registration of transfer of shares of stock, if any, transfers or
registration of transfers of shares of stock of the corporation shall be made
only on the stock ledger of the corporation by the registered holder thereof, or
by his attorney thereunto authorized by power of attorney duly executed and
filed with the Secretary of the corporation or with a transfer agent or a
registrar, if any, and, in the case of shares represented by certificates, on
surrender of the certificate or certificates for such shares of stock properly
endorsed and the payment of all taxes due thereon.

         5. RECORD DATE FOR STOCKHOLDERS. In order that the corporation may
determine the stockholders entitled to notice of or to vote at any meeting of
stockholders or any adjournment thereof, the Board of Directors may fix a record
date, which record date shall not precede the date upon which the resolution
fixing the record date is adopted by the Board of Directors, and which record
date shall not be more than sixty nor less than ten days before the date of such
meeting. If no record date is fixed by the Board of Directors, the record date
for determining stockholders entitled to notice of or to vote at a meeting of
stockholders shall be at the close of business on the date next preceding the
day on which notice is given, or, if notice is waived, at the close of business
on the day next preceding the day on which the meeting is held. A determination
of stockholders of record entitled to notice of or to vote at a meeting of
stockholders shall apply to any adjournment of the meeting; provided, however,
that the Board of Directors may fix a new record date for the adjourned meeting.
In order that the corporation may determine the stockholders entitled to consent
to corporate action in writing without a meeting, the Board of Directors may fix

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a record date, which record date shall not precede the date upon which the
resolution fixing the record date is adopted by the Board of Directors, and
which date shall not be more than ten days after the date upon which the
resolution fixing the record date is adopted by the Board of Directors. If no
record date has been fixed by the Board of Directors, the record date for
determining the stockholders entitled to consent to corporate action in writing
without a meeting, when no prior action by the Board of Directors is required by
the General Corporation Law, shall be the first date on which a signed written
consent setting forth the action taken or proposed to be taken is delivered to
the corporation by delivery to its registered office in the State of Delaware,
its principal place of business, or an officer or agent of the corporation
having custody of the book in which proceedings of meetings of stockholders are
recorded. Delivery made to the corporation's registered office shall be by hand
or by certified or registered mail, return receipt requested. If no record date
has been fixed by the Board of Directors and prior action by the Board of
Directors is required by the General Corporation Law, the record date for
determining stockholders entitled to consent to corporate action in writing
without a meeting shall be at the close of business on the day on which the
Board of Directors adopts the resolution taking such prior action. In order that
the corporation may determine the stockholders entitled to receive payment of
any dividend or other distribution or allotment of any rights or the
stockholders entitled to exercise any rights in respect of any change,
conversion, or exchange of stock, or for the purpose of any other lawful action,
the Board of Directors may fix a record date, which record date shall not
precede the date upon which the resolution fixing the record date is adopted,
and which record date shall be not more than sixty days prior to such action. If
no record date is fixed by the Board of Directors, the record date for
determining stockholders for any such purpose shall be at the close of business
on the day on which the Board of Directors adopts the resolution relating
thereto.

         6. MEANING OF CERTAIN TERMS. As used herein in respect of the right to
notice of a meeting of stockholders or a waiver thereof or to participate or
vote thereat or to consent or dissent in writing in lieu of a meeting, as the
case may be, the term "share" or "shares" or "share of stock" or "shares of
stock" or "stockholder" or "stockholders" refers to an outstanding share or
shares of stock and to a holder or holders of record of outstanding shares of
stock when the corporation is authorized to issue only one class of shares of
stock, and said reference is also intended to include any outstanding share or
shares of stock and any holder or holders of record of outstanding shares of
stock of any class upon which or upon whom the certificate of incorporation
confers such rights where there are two or more classes or series of shares of
stock or upon which or upon whom the General Corporation Law confers such rights
notwithstanding that the certificate of incorporation may provide for more than
one class or series of shares of stock, one or more of which are limited or
denied such rights thereunder; provided, however, that no such right shall vest
in the event of an increase or a decrease in the authorized number of shares of
stock of any class or series which is otherwise denied voting rights under the
provisions of the certificate of incorporation, except as any provision of law
may otherwise require.

         7. STOCKHOLDER MEETINGS.
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         - TIME. The annual meeting shall be held on the date and at the time
fixed, from time to time, by the directors, provided, that the first annual
meeting shall be held on a date within thirteen months after the organization of
the corporation and each successive annual meeting shall be held on a date
within thirteen months after the date of the preceding annual meeting. A special
meeting shall be held on the date and at the time fixed by the directors.

         - PLACE. Annual meetings and special meetings shall be held at such
place, within or without the State of Delaware, as the directors may, from time
to time, fix. Whenever the directors shall fail to fix such place, the meeting
shall be held at the registered office of the corporation in the State of
Delaware.

         - CALL.  Annual  meetings and special  meetings may be called by the 
directors or by any officer instructed by the directors to call the meeting.

         - NOTICE OR WAIVER OF NOTICE. Written notice of all meetings shall be
given, stating the place, date, and hour of the meeting and stating the place
within the city or other municipality or community at which the list of
stockholders of the corporation may be examined. The notice of an annual meeting
shall state that the meeting is called for the election of directors and for the
transaction of other business which may properly come before the meeting, and
shall (if any other action which could be taken at a special meeting is to be
taken at such annual meeting) state the purpose or purposes. The notice of a
special meeting shall in all instances state the purpose or purposes of which
the meeting is called. The notice of any meeting shall also include, or be
accompanied by, any additional statements, information, or documents prescribed
by the General Corporation Law. Except as otherwise provided by the General
Corporation Law, a copy of the notice of any meeting shall be given, personally
or by mail, not less than ten days nor more than sixty days before the date of
the meeting, unless the lapse of the prescribed period of time shall have been
waived, and directed to each stockholder at his record address or at such other
address which he may have furnished by request in writing to the Secretary of
the corporation. Notice by mail shall be deemed to be given when deposited, with
postage thereon prepaid, in the United States Mail. If a meeting is adjourned to
another time, not more than thirty days hence, and/or to another place, and if
an announcement of the adjourned time and/or place is made at the meeting, it
shall not be necessary to give notice of the adjourned meeting unless the
directors, after adjournment, fix a new record date for the adjourned meeting.
Notice need not be given to any stockholder who submits a written waiver of
notice signed by him before or after the time stated therein. Attendance of a
stockholder at a meeting of stockholders shall constitute a waiver of notice of
such meeting, except when the stockholder attends the meeting for the express
purpose of objecting, at the beginning of the meeting, to the transaction of any
business because the meeting is not lawfully called or convened. Neither the
business to be transacted at, nor the purpose of, any regular or special meeting
of the stockholders need be specified in any written waiver of notice.

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         - STOCKHOLDER LIST. The officer who has charge of the stock ledger of
the corporation shall prepare and make, at least ten days before every meeting
of stockholders, a complete list of the stockholders, arranged in alphabetical
order, and showing the address of each stockholder and the number of shares
registered in the name of each stockholder. Such list shall be open to the
examination of any stockholder, for any purpose germane to the meeting, during
ordinary business hours, for a period of at least ten days prior to the meeting,
either at a place within the city or other municipality or community where the
meeting is to be held, which place shall be specified in the notice of the
meeting, or if not so specified, at the place where the meeting is to be held.
The list shall also be produced and kept at the time and place of the meeting
during the whole time thereof, and may be inspected by any stockholder who is
present. The stock ledger shall be the only evidence as to who are the
stockholders entitled to examine the stock ledger, the list required by this
section or the books of the corporation, or to vote at any meeting of
stockholders.

         - CONDUCT OF MEETING. Meetings of the stockholders shall be presided
over by one of the following officers in the order of seniority and if present
and acting - the Chairman of the Board, if any, the Vice-Chairman of the Board,
if any, the President, a Vice President, or, if none of the foregoing is in
office and present and acting, by a chairman to be chosen by the stockholders.
The Secretary of the corporation, or in his absence, an Assistant Secretary,
shall act as secretary of every meeting, but if neither the Secretary nor an
Assistant Secretary is present the Chairman of the meeting shall appoint a
secretary of the meeting.

         - PROXY REPRESENTATION. Every stockholder may authorize another person
or persons to act for him by proxy in all matters in which a stockholder is
entitled to participate, whether by waiving notice of any meeting, voting or
participating at a meeting, or expressing consent or dissent without a meeting.
Every proxy must be signed by the stockholder or by his attorney-in-fact. No
proxy shall be voted or acted upon after three years from its date unless such
proxy provides for a longer period. A duly executed proxy shall be irrevocable
if it states that it is irrevocable and, if, and only as long as, it is coupled
with an interest sufficient in law to support an irrevocable power. A proxy may
be made irrevocable regardless of whether the interest with which it is coupled
is an interest in the stock itself or an interest in the corporation generally.

         - INSPECTORS. The directors, in advance of any meeting, may, but need
not, appoint one or more inspectors of election to act at the meeting or any
adjournment thereof. If an inspector or inspectors are not appointed, the person
presiding at the meeting may, but need not, appoint one or more inspectors. In
case any person who may be appointed as an inspector fails to appear or act, the
vacancy may be filled by appointment made by the directors in advance of the
meeting or at the meeting by the person presiding thereat. Each inspector, if
any, before entering upon the discharge of his duties, shall take and sign an
oath faithfully to execute the duties of inspectors at such meeting with strict
impartiality and according to the best of his ability. The inspectors, if any,
shall determine the number of shares of stock outstanding and the voting power
of each, the shares of stock represented at the meeting, the existence of a
quorum, the validity and 

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effect of proxies, and shall receive votes, ballots, or consents, hear and
determine all challenges and questions arising in connection with the right to
vote, count and tabulate all votes, ballots, or consents, determine the result,
and do such acts as are proper to conduct the election or vote with fairness to
all stockholders. On request of the person presiding at the meeting, the
inspector or inspectors, if any, shall make a report in writing of any
challenge, question, or matter determined by him or them and execute a
certificate of any fact found by him or them. Except as otherwise required by
subsection (e) of Section 231 of the General Corporation Law, the provisions of
that Section shall not apply to the corporation.

         - QUORUM. The holders of a majority of the outstanding shares of stock
shall constitute a quorum at a meeting of stockholders for the transaction of
any business. The stockholders present may adjourn the meeting despite the
absence of a quorum.

         - VOTING. Each share of stock shall entitle the holders thereof to one
vote. Directors shall be elected by a plurality of the votes of the shares
present in person or represented by proxy at the meeting and entitled to vote on
the election of directors. Any other action shall be authorized by a majority of
the votes cast except where the General Corporation Law prescribes a different
percentage of votes and/or a different exercise of voting power, and except as
may be otherwise prescribed by the provisions of the certificate of
incorporation and these Bylaws. In the election of directors, and for any other
action, voting need not be by ballot.

         8. STOCKHOLDER ACTION WITHOUT MEETINGS. Any action required by the
General Corporation Law to be taken at any annual or special meeting of
stockholders, or any action which may be taken at any annual or special meeting
of stockholders, may be taken without a meeting, without prior notice and
without a vote, if a consent in writing, setting forth the action so taken,
shall be signed by the holders of outstanding stock having not less than the
minimum number of votes that would be necessary to authorize or take such action
at a meeting at which all shares entitled to vote thereon were present and
voted. Prompt notice of the taking of the corporate action without a meeting by
less than unanimous written consent shall be given to those stockholders who
have not consented in writing. Action taken pursuant to this paragraph shall be
subject to the provisions of Section 228 of the General Corporation Law.

                                  ARTICLE II

                                  DIRECTORS

         1. FUNCTIONS AND DEFINITION. The business and affairs of the
corporation shall be managed by or under the direction of the Board of Directors
of the corporation. The Board of Directors shall have the authority to fix the
compensation of the members thereof. The use of the

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phrase "whole board" herein refers to the total number of directors which the
corporation would have if there were no vacancies.

         2. QUALIFICATIONS AND NUMBER. A director need not be a stockholder, a
citizen of the United States, or a resident of the State of Delaware. The
initial Board of Directors shall consist of 2 persons. Thereafter the number of
directors constituting the whole board shall be at least one. Subject to the
foregoing limitation and except for the first Board of Directors, such number
may be fixed from time to time by action of the stockholders or of the
directors, or, if the number is not fixed, the number shall be one. The number
of directors may be increased or decreased by action of the stockholders or of
the directors.

         3. ELECTION AND TERM. The first Board of Directors, unless the members
thereof shall have been named in the certificate of incorporation, shall be
elected by the incorporator or incorporators and shall hold office until the
first annual meeting of stockholders and until their successors are elected and
qualified or until their earlier resignation or removal. Any director may resign
at any time upon written notice to the corporation. Thereafter, directors who
are elected at an annual meeting of stockholders, and directors who are elected
in the interim to fill vacancies and newly created directorships, shall hold
office until the next annual meeting of stockholders and until their successors
are elected and qualified or until their earlier resignation or removal. Except
as the General Corporation Law may otherwise require, in the interim between
annual meetings of stockholders or of special meetings of stockholders called
for the election of directors and/or for the removal of one or more directors
and for the filing of any vacancy in that connection, newly created
directorships and any vacancies in the board of Directors, including unfilled
vacancies resulting from the removal of directors for cause or without cause,
may be filled by the vote of a majority of the remaining directors then in
office, although less than a quorum, or by the sole remaining director.

         4. MEETINGS.

         - TIME. Meetings shall be held at such time as the Board shall fix,
except that the first meeting of a newly elected Board shall be held as soon
after its election as the directors may conveniently assemble.

         - PLACE. Meetings shall be held at such place within or without the
State of Delaware as shall be fixed by the Board.

         - CALL. No call shall be required for regular meetings for which the
time and place have been fixed. Special meetings may be called by or at the
direction of the Chairman of the Board, if any, the Vice-Chairman of the Board,
if any, of the President, or of a majority of the directors in office.

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         - NOTICE OF ACTUAL OR CONSTRUCTIVE WAIVER. No notice shall be required
for regular meetings for which the time and place have been fixed. Written,
oral, or any other mode of notice of the time and place shall be given for
special meetings in sufficient time for the convenient assembly of the directors
thereat. Notice need not be given to any director or to any member of a
committee of directors who submits a written waiver of notice signed by him
before or after the time stated therein. Attendance of any such person at a
meeting shall constitute a waiver of notice of such meeting, except when he
attends a meeting for the express purpose of objecting, at the beginning of the
meeting, to the transaction of any business because the meeting is not lawfully
called or convened. Neither the business to be transacted at, nor, the purpose
of, any regular or special meeting of the directors need be specified in any
written waiver of notice.

         - QUORUM AND ACTIONS. A majority of the whole Board shall constitute a
quorum except when a vacancy or vacancies prevents such majority, whereupon a
majority of the directors in office shall constitute a quorum, provided, that
such majority shall constitute at least one-third of the whole Board. A majority
of the directors present, whether or not a quorum is present, may adjourn a
meeting to another time and place. Except as herein otherwise provided, and
except as otherwise provided by the General Corporation Law, the vote of the
majority of the directors present at a meeting at which a quorum is present
shall be the act of the Board. The quorum and voting provisions herein stated
shall not be construed as conflicting with any provisions of the General
Corporation Law and these Bylaws which govern a meeting of directors held to
fill vacancies and newly created directorships in the Board or action of
disinterested directors.

         Any member or members of the Board of Directors or of any committee
designated by the Board, may participate in a meeting of the Board, or any such
committee, as the case may be, by means of conference telephone or similar
communications equipment by means of which all persons participating in the
meeting can hear each other.

         - CHAIRMAN OF THE MEETING. The Chairman of the Board, if any and if
present and acting, shall preside at all meetings. Otherwise, the Vice-Chairman
of the Board, if any and if present and acting, or the President, if present and
acting, or any other director chosen by the Board, shall preside.

         5. REMOVAL OF DIRECTORS. Except as may otherwise be provided by the
General Corporation Law, any director or the entire Board of Directors may be
removed, with or without cause, by the holders of a majority of the shares then
entitled to vote at an election of directors.

         6. COMMITTEES. The Board of Directors may, by resolution passed by a
majority of the whole Board, designate one or more committees, each committee to
consist of one or more of the directors of the corporation. The Board may
designate one or more directors as alternate members of any committee, who may
replace any absent or disqualified member at any meeting of the committee. In
the absence or disqualification of any member of any such committee or

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committees, the member or members thereof present at any meeting and not
disqualified from voting, whether or not he or they constitute a quorum, may
unanimously appoint another member of the Board of Directors to act at the
meeting in the place of any such absent or disqualified member. Any such
committee, to the extent provided in the resolution of the Board, shall have and
may exercise the powers and authority of the Board of Directors in the
management of the business and affairs of the corporation with the exception of
any authority the delegation of which is prohibited by Section 141 of the
General Corporation Law, and may authorize the seal of the corporation to be
affixed to all papers which may require it.

         7. WRITTEN ACTION. Any action required or permitted to be taken at any
meeting of the Board of Directors or any committee thereof may be taken without
a meeting if all members of the Board or committee, as the case may be, consent
thereto in writing, and the writing or writings are filed with the minutes of
proceedings of the Board or committee.

                                 ARTICLE III

                                   OFFICERS

         
         The officers of the corporation shall consist of a President, a
Secretary, a Treasurer, and, if deemed necessary, expedient, or desirable by the
Board of Directors, a Chairman of the Board, a Vice-Chairman of the Board, an
Executive Vice-President, one or more other Vice-Presidents, one or more
Assistant Secretaries, one or more Assistant Treasurers, and such other officers
with such titles as the resolution of the Board of Directors choosing them shall
designate. Except as may otherwise be provided in the resolution of the Board of
Directors choosing him, no officer other than the Chairman or Vice-Chairman of
the Board, if any, need be a director. Any number of offices may be held by the
same person, as the directors may determine.

         Unless otherwise provided in the resolution choosing him, each officer
shall be chosen for a term which shall continue until the meeting of the Board
of Directors following the next annual meeting of stockholders and until his
successor shall have been chosen and qualified.

         All officers of the corporation shall have such authority and perform
such duties in the management and operation of the corporation as shall be
prescribed in the resolutions of the Board of Directors designating and choosing
such officers and prescribing their authority and duties, and shall have such
additional authority and duties as are incident to their office except to the
extent that such resolutions may be inconsistent therewith. The Secretary or an
Assistant Secretary of the corporation shall record all of the proceedings of
all meetings and actions in writing of stockholders, directors, and committees
of directors, and shall exercise such additional authority and perform such

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additional duties as the Board shall assign to him. Any officer may be removed,
with or without cause, by the Board of Directors. Any vacancy in any office may
be filled by the Board of Directors.

                                  ARTICLE IV

                                CORPORATE SEAL

         The corporate seal shall be in such form as the Board of Directors
shall prescribe.

                                  ARTICLE V

                                 FISCAL YEAR

         The fiscal year of the corporation shall be fixed, and shall be subject
to change, by the Board of Directors.


                                  ARTICLE VI

                             CONTROL OVER BYLAWS

         Subject to the provisions of the certificate of incorporation and the
provisions of the General Corporation Law, the power to amend, alter, or repeal
these Bylaws and to adopt new Bylaws may be exercised by the Board of Directors
or by the stockholders.

         I HEREBY CERTIFY that the foregoing is a full, true, and correct copy
of the Bylaws of Phoenix Microwave, Ltd., a Delaware corporation, as in effect
on the date hereof.

Dated: April 30, 1996

                                               /s/ Joseph J. Diesso, 
                                               -------------------------------  
                                                   Joseph J. Diesso, Secretary 

       (SEAL)

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