BY-LAWS

                                          OF

                               LINKABIT WIRELESS, INC.

                                      ARTICLE I

                                       OFFICES

     SECTION 1.     The registered office shall be in the City of Dover, County
of Kent, State of Delaware.

     SECTION 2.     The corporation may also have offices at such other places
both within and without the State of Delaware as the Board of Directors may from
time to time determine or the business of the corporation may require.

                                      ARTICLE II

                               MEETINGS OF STOCKHOLDERS

     SECTION 1.     Meetings of stockholders shall be held at any place within
or outside the State of Delaware designated by the Board of Directors.  In the
absence of any such designation, stockholders' meetings shall be held at the
principal executive office of the corporation.

     SECTION 2.     The annual meeting of stockholders shall be held each year
on a date and a time designated by the Board of Directors.  At each annual
meeting directors shall be elected and any other proper business may be
transacted.

     SECTION 3.     The holders of a majority of the voting power of the
outstanding shares of the corporation entitled to vote generally in the election
of directors (the "Voting Stock"), represented by proxy, shall constitute a
quorum for the transaction of business, except as otherwise provided by law, by
the Certificate of Incorporation, or by these By-Laws.  A quorum, once
established, shall not be broken by the withdrawal of enough votes to leave less
than a quorum and the votes present may continue to transact business until
adjournment.  If, however, such quorum shall not be present or represented at
any meeting of the stockholders, a majority of the voting power of the shares of
Voting Stock represented in person or by proxy may adjourn the meeting from time
to time, without notice other than announcement at the meeting, until a quorum
shall be present or represented.  At such adjourned meeting at which a quorum
shall be present or represented, any business may be transacted which might have
been transacted at the meeting as originally notified.  If the adjournment is
for more than thirty days, or if after the adjournment a new record date is
fixed for the adjourned meeting, a notice of the adjourned meeting shall be
given to each stockholder of record entitled to vote thereat.

     SECTION 4.     When a quorum is present at any meeting, the vote of the
holders of a majority of the voting power of the shares of Voting Stock present
in person or represented by proxy shall decide any question brought before such
meeting, unless the question is one upon




which by express provision of the statutes, or the Certificate of Incorporation,
or these By-Laws, a different vote is required in which case such express
provision shall govern and control the decision of such question.

     SECTION 5.     At each meeting of the stockholders, each stockholder having
the right to vote may vote in person or may authorize another person or persons
to act for him by proxy appointed by an instrument in writing subscribed by such
stockholder and bearing a date not more than three years prior to said meeting,
unless said instrument provides for a longer period.  All proxies must be filed
with the Secretary of the corporation at the beginning of each meeting in order
to be counted in any vote at the meeting.  Except as otherwise provided by law
or by the Certificate of Incorporation, each stockholder shall have one vote for
each share of stock having voting power, registered in his name on the books of
the corporation on the record date set by the Board of Directors as provided in
Article V, Section 6 hereof.

     SECTION 6.     Except as otherwise required by applicable law, and subject
to the rights of the holders of any series of preferred stock or any other
series or class of stock, as set forth in the Certificate of Incorporation, to
elect additional directors under specified circumstances, special meetings of
the stockholders of the corporation may be called only by the Board of Directors
pursuant to a resolution adopted by a majority of the total number of directors
which the corporation would have if there were no vacancies or by the Chairman
of the Board or the President; provided, that prior to the Trigger Date (as such
term is defined in the Certificate of Incorporation), special meetings of the
stockholders of the corporation shall also be called at the request of the
holders of a majority of the voting power of the then outstanding Voting Stock.
Except as expressly provided in the immediately preceding sentence, any power of
stockholders of the corporation to call a special meeting is specifically
denied.

     SECTION 7.     Whenever stockholders are required or permitted to take any
action at a meeting, a written notice of the meeting shall be given which notice
shall state the place, date and hour of the meeting, and, in the case of a
special meeting, the purpose or purposes for which the meeting is called.  The
written notice of any meeting shall be given to each stockholder entitled to
vote at such meeting not less than ten nor more than sixty days before the date
of the meeting.  If mailed, notice is given when deposited in the United States
mail, postage prepaid, directed to the stockholder at his address as it appears
on the records of the corporation.

     SECTION 8.     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 entitled to vote at the
meeting, 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 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.

     SECTION 9.     Effective as of the Trigger Date, and subject to the rights
of the holders of any series of preferred stock or any other series or class of
stock as set forth in the Certificate of


                                          2.


Incorporation to elect additional directors under specified circumstances, any
action required or permitted to be taken by the stockholders of the corporation
must be effected at an annual or special meeting of stockholders of the
corporation and may not be effected by any consent in writing by such
stockholders.

                                     ARTICLE III

                                      DIRECTORS

     SECTION 1.     The Board shall consist of one or more members, the number
thereof to be determined from time to time by resolution of the Board.  The
directors need not be stockholders.  The directors shall be elected at the
annual meeting of the stockholders, except as provided in Section 2 of this
Article, and each director elected shall hold office until his successor is
elected and qualified; provided, however, that unless otherwise provided in the
Certificate of Incorporation or by law, any director or the entire Board of
Directors may be removed, either with or without cause, from the Board of
Directors at any meeting of stockholders by a majority of the stock represented
and entitled to vote thereat.

     SECTION 2.     Vacancies on the Board of Directors by reason of death,
resignation, retirement, disqualification, removal from office, or otherwise,
and newly created directorships resulting from any increase in the authorized
number of directors may be filed by a majority of the directors then in office,
although less than a quorum, or by a sole remaining director.  The directors so
chosen shall hold office until the next annual election of directors and until
their successors are duly elected and shall qualify, unless sooner displaced.
If there are no directors in office, then an election of directors may be held
in the manner provided by statute.  If, at the time of filing any vacancy or any
newly created directorship, the directors then in office shall constitute less
than a majority of the whole Board (as constituted immediately prior to any such
increase), the Court of Chancery may, upon application of any stockholder or
stockholders holding at least ten percent of the total number of the shares at
the time outstanding having the right to vote for such directors, summarily
order an election to be held to fill any such vacancies or newly created
directorships, or to replace the directors chosen by the directors then in
office.

     SECTION 3.     The property and business of the corporation shall be
managed by or under the direction of its Board of Directors.  In addition to the
powers and authorities by these By-Laws expressly conferred upon them, the Board
may exercise all such powers of the corporation and do all such lawful acts and
things as are not by statute or by the Certificate of Incorporation or by these
By-Laws directed or required to be exercised or done by the stockholders.

MEETINGS OF THE BOARD OF DIRECTORS

     SECTION 4.     The directors may hold their meetings and have one or more
offices, and keep the books of the corporation outside of the State of Delaware.

     SECTION 5.     Regular meetings of the Board of Directors may be held
without notice at such time and place as shall from time to time be determined
by the Board.

     SECTION 6.     Special meetings of the Board of Directors may be called by
the President on forty-eight hours' notice to each director, either personally
or by mail or by telegram; special


                                          3.


meetings shall be called by the President or the Secretary in like manner and on
like notice on the written request of two directors unless the Board consists of
only one director; in which case special meetings shall be called the President
or Secretary in like manner or on like notice on the written request of the sole
director.

     SECTION 7.     At all meetings of the Board of Directors a majority of the
authorized number of directors shall be necessary and sufficient to constitute a
quorum for the transaction of business, and the vote of a majority of the
directors present at any meeting at which there is a quorum, shall be the act of
the Board of Directors, except as may be otherwise specifically provided by
statute, by the Certificate of Incorporation or by these By-Laws.  If a quorum
shall not be present at any meeting of the Board of Directors the directors
present thereat may adjourn the meeting from time to time, without notice other
than announcement at the meeting, until a quorum shall be present.  If only one
director is authorized, such sole director shall constitute a quorum.

     SECTION 8.     Unless otherwise restricted by the Certificate of
Incorporation or these By-Laws, any action required or permitted to be taken at
any meeting of the Board of Directors or of 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 proceeding of the Board or committee.

     SECTION 9.     Unless otherwise restricted by the Certificate of
Incorporation or these By-Laws, members of the Board of Directors, or any
committee designated by the Board of Directors, may participate in a meeting of
the Board of Directors, or any committee, by means of conference telephone or
similar communications equipment by means of which all persons participating in
the meeting can hear each other, and such participation in a meeting shall
constitute presence in person at such meeting.

COMMITTEES OF DIRECTORS

     SECTION 10.    The Board of Directors may, by resolution passed by a
majority of the whole Board, designate one or more committees, each such
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 a member of a committee, 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 of Directors, shall have and may
exercise all the powers and authority of the Board of Directors in the
management of the business and affairs of the corporation, and may authorize the
seal of the corporation to be affixed to all papers which may require it; but no
such committee shall have the power or authority in reference to amending the
Certificate of Incorporation, adopting an agreement of merger of consolidation,
recommending to the stockholders the sale, lease or exchange of all or
substantially all of the corporation's property and assets, recommending to the
stockholders a dissolution of the corporation or a revocation of a dissolution,
or amending the By-Laws of the corporation; and,


                                          4.


unless the resolution or the Certificate of Incorporation expressly so provide,
no such committee shall have the power or authority to declare a dividend or to
authorize the issuance of stock.

     SECTION 11.    Each committee shall keep regular minutes of its meetings
and report the same to the Board of Directors when required.

COMPENSATION OF DIRECTORS

     SECTION 12.    Unless otherwise restricted by the Certificate of
Incorporation or these By-Laws, the Board of Directors shall have the authority
to fix the compensation of directors.  The directors may be paid their expenses,
if any, of attendance at each meeting of the Board of Directors and may be paid
a fixed sum for attendance at each meeting of the Board of Directors or a stated
salary as director.  No such payment shall preclude any director from serving
the corporation in any other capacity and receiving compensation therefor.
Members of special or standing committees may be allowed like compensation for
attending committee meetings.

INDEMNIFICATION

     SECTION 13.    (a)  The corporation shall indemnify any person who was or
is a party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action by or in the right of the corporation) by
reason of the fact that he is or was a director, officer, employee or agent of
the corporation, or is or was serving at the request of the corporation as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise, against expenses (including attorneys'
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by him in connection with such action, suit or proceeding if he acted
in good faith and in a manner he reasonably believed to be in or not opposed to
the best interests of the corporation, and, with respect to any criminal action
or proceeding, had no reasonable cause to believe his conduct was unlawful.  The
termination of any action, suit or proceeding by judgment, order, settlement,
conviction, or upon a plea of nolo contendre or its equivalent, shall not, of
itself, create a presumption that the person did not act in good faith and in a
manner which he reasonably believed to be in or not opposed to the best
interests of the corporation, and, with respect to any criminal action or
proceeding, had reasonable cause to believe that his conduct was unlawful.

          (b)  The corporation shall indemnify any person who was or is a party
or is threatened to be made a party to any threatened, pending or completed
action or suit by or in the right of the corporation to procure a judgment in
its favor by reason of the fact that he is or was a director, officer, employee
or agent of the corporation, or is or was serving at the request of the
corporation as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise against expenses
(including attorney's fees) actually and reasonably incurred by him in
connection with the defense or settlement of such action or suit if he acted in
good faith and in a manner he reasonably believed to be in or not opposed to the
best interests of the corporation and except that no such indemnification shall
be made in respect of any claim, issue or matter as to which such person shall
have been adjudged to be liable for negligence or misconduct in the performance
of his duty to the corporation unless and only to the extent that the Court of
Chancery of Delaware or the court in which such action or suit was


                                          5.


brought shall determine upon application that, despite the adjudication of
liability but in view of all the circumstances of the case, such person is
fairly and reasonably entitled to indemnity for such expenses which such Court
or Chancery or such other court shall deem proper.

          (c)  To the extent that a director, officer, employee or agent of the
corporation shall be successful on the merits or otherwise in defense of any
action, suit or proceeding referred to in paragraphs (a) and (b), or in defense
of any claim, issue or matter therein, he shall be indemnified against expenses
(including attorneys' fees) actually and reasonably incurred by him in
connection therewith.

          (d)  Any indemnification under paragraphs (a) and (b) (unless ordered
by a court) shall be made by the corporation only as authorized in the specific
case upon a determination that indemnification of the director, officer,
employee or agent is proper in the circumstances because he has met the
applicable standard of conduct set forth in paragraphs (a) and (b).  Such
determination shall be made (1) by the Board of Directors by a majority vote of
a quorum consisting of directors who were not parties to such action, suit or
proceeding, or (2) if such a quorum is not obtainable, or, even if obtainable a
quorum of disinterested directors so directs, by independent legal counsel in a
written opinion, or (3) by the stockholders.

          (e)  Expenses incurred in defending a civil or criminal action, suit
or proceeding may be paid by the corporation in advance of the final disposition
of such action, suit or proceeding as authorized by the Board of Directors in
the manner provided in paragraph (d) upon receipt of an undertaking by or on
behalf of the director, officer, employee or agent to repay such amount unless
it shall ultimately be determined that he is entitled to be indemnified by the
corporation as authorized in this Section 13.

          (f)  The indemnification provided by this Section 13 shall not be
deemed exclusive of any other rights to which those indemnified may be entitled
under any by-law, agreement, vote of stockholders or disinterested directors or
otherwise, both as to action in his official capacity and as to action in
another capacity while holding such office, and shall continue as to a person
who has ceased to be a director, officer, employee or agent and shall inure to
the benefit of the heirs, executors and administrators of such a person.

          (g)  The Board of Directors may authorize, by a vote of a majority of
a quorum of the Board of Directors, the corporation to purchase and maintain
insurance on behalf of any person who is or was a director, officer, employee or
agent of the corporation, or is or was serving at the request of the corporation
as a director, officer, employee or agent of another corporation, partnership,
joint venture, trust or other enterprise against any liability asserted against
him and incurred by him in any such capacity, or arising out of his status as
such, whether or not the corporation would have the power to indemnify him
against such liability under the provisions of this Section 13.

          (h)  For the purposes of this Section 13, references to "the
corporation" shall include, in addition to the resulting corporation, any
constituent corporation (including any constituent of a constituent) absorbed in
a consolidation or merger which, if its separate existence had continued, would
have had power and authority to indemnify its directors, officers, and employees
or agents, so that any person who is or was a director, officer, employee or
agent


                                          6.


of such constituent corporation, or is or was serving at the request of such
constituent corporation as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise, shall stand
in the same position under the provisions of this Section with respect to the
resulting or surviving corporation as he would have with respect to such
constituent corporation if its separate existence had continued.

          (i)  For purposes of this section, references to "other enterprises"
shall include employee benefit plans; references to "fines" shall include any
excise taxes assessed on a person with respect to an employee benefit plan; and
references to "serving at the request of the corporation" shall include service
as a director, officer, employee or agent of the corporation which imposes
duties on, or involves services by, such director, officer, employee or agent
with respect to an employee benefit plan, its participants or beneficiaries; and
a person who acted in good faith and in a manner he reasonably believed to be in
the interest of the participants and beneficiaries of an employee benefit plan
shall be deemed to have acted in a manner "not opposed to the best interests of
the corporation" as referred to in this section.

                                      ARTICLE IV

                                       OFFICERS

     SECTION 1.     The officers of this corporation shall be chosen by the
Board of Directors and shall include a President, a Secretary, and a Treasurer.
The corporation may also have at the discretion of the Board of Directors such
other officers as are desired, including a Chairman of the Board, one or more
Vice Presidents, one or more Assistant Secretaries and Assistant Treasurers, and
such other officers as may be appointed in accordance with the provisions of
Section 3 hereof.  In the event there are two or more Vice Presidents, then one
or more may be designated as Executive Vice President, Senior Vice President, or
other similar or dissimilar title.  At the time of the election of officers, the
directors may by resolution determine the order of their rank.  Any number of
offices may be held by the same person, unless the Certificate of Incorporation
or these By-Laws otherwise provide.

     SECTION 2.     The Board of Directors, at its first meeting after each
annual meeting of stockholders, shall choose the officers of the corporation.

     SECTION 3.     The Board of Directors may appoint such other officers and
agents as it shall deem necessary who shall hold their offices for such terms
and shall exercise such powers and perform such duties as shall be determined
from time to time by the Board.

     SECTION 4.     The salaries of all officers and agents of the corporation
shall be fixed by the Board of Directors.

     SECTION 5.     The officers of the corporation shall hold office until
their successors are chosen and qualify in their stead.  Any officer elected or
appointed by the Board of Directors may be removed at any time by the
affirmative vote of a majority of the Board of Directors.  If the office of any
officer or officers becomes vacant for any reason, the vacancy shall be filled
by the Board of Directors.


                                          7.


CHAIRMAN OF THE BOARD

     SECTION 6.     The Chairman of the Board, if such an officer be elected,
shall, if present, preside at all meetings of the Board of Directors and
exercise and perform such other powers and duties as may be from time to time
assigned to him by the Board of Directors or prescribed by these By-Laws.  If
there is no President, the Chairman of the Board shall in addition be the Chief
Executive Officer of the corporation and shall have the powers and duties
prescribed in Section 7 of this Article IV.

PRESIDENT AND CHIEF EXECUTIVE OFFICER

     SECTION 7.     Subject to such supervisory powers, if any, as may be given
by the Board of Directors to the Chairman of the Board, if there be such an
officer, the President shall be the Chief Executive Officer of the corporation
and shall, subject to the control of the Board of Directors, have general
supervision, direction and control of the business and officers of the
corporation.  He shall preside at all meetings of the stockholders and, in the
absence of the Chairman of the Board, or if there be none, at all meetings of
the Board of Directors.  He shall be an ex-officio member of all committees and
shall have the general powers and duties of management usually vested in the
office of President and Chief Executive Officer of corporations, and shall have
such other powers and duties as may be prescribed by the Board of Directors or
these By-Laws.

VICE PRESIDENTS

     SECTION 8.     In the absence or disability of the President, the Vice
Presidents in order of their rank as fixed by the Board of Directors, or if not
ranked, the Vice President designated by the Board of Directors, shall perform
all the duties of the President, and when so acting shall have all the powers of
and be subject to all the restrictions upon the President.  The Vice Presidents
shall have such other duties as from time to time may be prescribed for them,
respectively, by the Board of Directors.

SECRETARY AND ASSISTANT SECRETARY

     SECTION 9.     The Secretary shall attend all sessions of the Board of
Directors and all meetings of the stockholders and record all votes and the
minutes of all proceedings in a book to be kept for that purpose; and shall
perform like duties for the standing committees when required by the Board of
Directors.  He shall give, or cause to be given, notice of all meetings of the
stockholders and of the Board of Directors, and shall perform such other duties
as may be prescribed by the Board of Directors or these By-Laws.  He shall keep
in safe custody the seal of the corporation, and when authorized by the Board,
affix the same to any instrument requiring it, and when so affixed it shall be
attested by his signature or by the signature of an Assistant Secretary.  The
Board of Directors may give general authority to any other officer to affix the
seal of the corporation and to attest the affixing by his signature.

     SECTION 10.    The Assistant Secretary, or if there be more than one, the
Assistant Secretaries in the order determined by the Board of Directors, or if
there be no such determination, the Assistant Secretary designated by the Board
of Directors, shall, in the absence or disability of the Secretary, perform the
duties and exercise the powers of the Secretary and


                                          8.


shall perform such other duties and have such other powers as the Board of
Directors may from time to time prescribe.

VICE PRESIDENT-FINANCE

     SECTION 11.    The Vice President-Finance shall have the custody of the
corporate funds and securities and shall keep full and accurate accounts of
receipts and disbursements in books belonging to the corporation and shall
deposit all moneys, and other valuable effects in the name and to the credit of
the corporation, in such depositories as may be designated by the Board of
Directors.  He shall disburse the funds of the corporation as may be ordered by
the Board of Directors, taking proper vouchers for such disbursements, and shall
render to the Board of Directors, at its regular meetings, or when the Board of
Directors so requires, an account of all his transactions as Vice
President-Finance and of the financial condition of the corporation.  If
required by the Board of Directors, he shall give the corporation a bond, in
such sum and with such surety or sureties as shall be satisfactory to the Board
of Directors, for the faithful performance of the duties of his office and for
the restoration to the corporation, in case of his death, resignation,
retirement or removal from office, of all books, papers, vouchers, money and
other property of whatever kind in his possession or under his control belonging
to the corporation.

     SECTION 12.    The Assistant Treasurer, or if there shall be more than one,
the Assistant Treasurers in the order determined by the Board of Directors, or
if there be no such determination, the Assistant Treasurer designated by the
Board of Directors, shall, in the absence or disability of the Treasurer,
perform the duties and exercise the powers of the Treasurer and shall perform
such other duties and have such other powers as the Board of Directors may from
time to time prescribe.

                                      ARTICLE V

                                CERTIFICATES OF STOCK

     SECTION 1.     Every holder of stock of the corporation shall be entitled
to have a certificate signed by, or in the name of the corporation by, the
Chairman or Vice Chairman of the Board of Directors, or the President or a Vice
President, and by the Secretary or an Assistant Secretary, or the Vice
President-Finance or an Assistant Treasurer of the corporation, certifying the
number of shares represented by the certificate owned by such stockholder in the
corporation.

     SECTION 2.     Any or all of the signatures on the 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.

     SECTION 3.     If the corporation shall be authorized to issue more than
one class of stock or more than one series of any class, the powers,
designations, preferences and relative, participating, optional or other special
rights of each class of stock or series thereof and the qualification,
limitations or restrictions of such preferences and/or rights shall be set forth
in full


                                          9.


or summarized on the face or back of the certificate which the corporation shall
issue to represent such class or series of stock, provided that, except as
otherwise provided in section 202 of the General Corporation Law of Delaware, in
lieu of the foregoing requirements, there may be set forth on the face or back
of the certificate which the corporation shall issue to represent such class or
series of stock, a statement that the corporation will furnish without charge to
each stockholder who so requests the powers, designations, preferences and
relative, participating, optional or other special rights of each class of stock
or series thereof and the qualifications, limitations or restrictions of such
preferences and/or rights.

LOST, STOLEN OR DESTROYED CERTIFICATES

     SECTION 4.     The Board of Directors may direct a new certificate or
certificates to be issued in place of any certificate or certificates
theretofore issued by the corporation alleged to have been lost, stolen or
destroyed, upon the making of an affidavit of that fact by the person claiming
the certificate of stock to be lost, stolen or destroyed.  When authorizing such
issue of a new certificate or certificates, the Board of Directors may, in its
discretion and as a condition precedent to the issuance thereof, require the
owner of such lost, stolen or destroyed certificate or certificates, or his
legal representative, to advertise the same in such manner as it shall require
and/or to give the corporation a bond in such sum as it may direct as indemnity
against any claim that may be made against the corporation with respect to the
certificate alleged to have been lost, stolen or destroyed.

TRANSFERS OF STOCK

     SECTION 5.     Upon surrender to the corporation, or the transfer agent of
the corporation, of a certificate for shares duly endorsed or accompanied by
proper evidence of succession, assignation or authority to transfer, it shall be
the duty of the corporation to issue a new certificate to the person entitled
thereto, cancel the old certificate and record the transaction upon its books.

FIXING RECORD DATE

     SECTION 6.     In order that the corporation may determine the stockholders
entitled to notice of or to vote at any meeting of the stockholders, or any
adjournment thereof, or to express consent to corporate action in writing
without a meeting, or entitled to receive payment of any dividend or other
distribution or allotment of any rights, or 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 shall
not be more than sixty nor less than ten days before the date of such meeting,
nor more than sixty days prior to any other action.  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.

REGISTERED STOCKHOLDERS

     SECTION 7.     The corporation shall be entitled to treat the holder of
record of any share or shares of stock as the holder in fact thereof and
accordingly shall not be bound to recognize any equitable or other claim or
interest in such share on the part of any other person, whether or


                                         10.


not it shall have express or other notice thereof, save as expressly provided by
the laws of the State of Delaware.

                                      ARTICLE VI

                                 GENERAL PROVISIONS

DIVIDENDS

     SECTION 1.     Dividends upon the capital stock of the corporation, subject
to the provisions of the Certificate of Incorporation, if any, may be declared
by the Board of Directors at any regular or special meeting, pursuant to law.
Dividends may be paid in cash, in property, or in shares of the capital stock,
subject to the provisions of the Certificate of Incorporation.

     SECTION 2.     Before payment of any dividend there may be set aside out of
any funds or the corporation available for dividends such sum or sums as the
directors from time to time, in their absolute discretion, think proper as a
reserve fund to meet contingencies, or for equalizing dividends, or for
repairing or maintaining any property of the corporation, or for such other
purpose as the directors shall think conducive to the interests of the
corporation, and the directors may abolish any such reserve.

CHECKS

     SECTION 3.     All checks or demands for money and notes of the corporation
shall be signed by such officer or officers as the Board of Directors may from
time to time designate.

FISCAL YEAR

     SECTION 4.     The fiscal year of the corporation shall be fixed by
resolution of the Board of Directors.

SEAL

     SECTION 5.     The corporate seal shall have inscribed thereon the name of
the corporation, the year of its organization and the words "Corporate Seal,
Delaware".  Said seal may be used by causing it or a facsimile thereof to be
impressed or affixed or reproduced or otherwise.

NOTICES

     SECTION 6.     Whenever, under the provisions of the statutes or of the
Certificate of Incorporation or of these By-Laws, notice is required to be given
to any director or stockholder, it shall not be construed to mean personal
notice, but such notice may be given in writing, by mail, addressed to such
director or stockholder, at his address as it appears on the records of the
corporation, with postage thereon prepaid, and such notice shall be deemed to be
given at the time when the same shall be deposited in the United States mail.
Notice to directors may also be given by telegram.


                                         11.


     SECTION 7.     Whenever any notice is required to be given under the
provisions of the statutes or of the Certificate of Incorporation or of these
By-Laws, a waiver thereof in writing, signed by the person or persons entitled
to said notice, whether before or after the time stated therein, shall be deemed
to be equivalent.

ANNUAL STATEMENT

     SECTION 8.     The Board of Directors shall present at each annual meeting,
and at any special meeting of the stockholders when called for by vote of the
stockholders, a full and clear statement of the business and condition of the
corporation.

                                     ARTICLE VII

                                      AMENDMENTS

     SECTION 1.     These By-laws may be altered, amended or repealed or new
By-Laws may be adopted by the stockholders or by the Board of Directors, when
such power is conferred upon the Board of Directors by the Certificate of
Incorporation, at any regular meeting of the stockholders or of the Board of
Directors or at any special meeting of the stockholders or of the Board of if
notice of such alternation, amendment, repeal or adoption of new By-Laws be
contained in the notice of such special meeting.  If the power to adopt, amend
or repeal By-Laws is conferred upon the Board of Directors by the Certificate of
Incorporation it shall not divest or limit the power of the stockholders to
adopt, amend or repeal By-laws.


                                          12.



                                       BY-LAWS

                                          OF

                               LINKABIT WIRELESS, INC.




                                  TABLE OF CONTENTS


ARTICLE I OFFICES..............................................................1

     Section 1.     Registered Office..........................................1
     Section 2.     Other Offices..............................................1

ARTICLE II       MEETINGS OF STOCKHOLDERS......................................1

     Section 1.     Place of Meetings..........................................1
     Section 2.     Annual Meeting of Stockholders.............................1
     Section 3.     Quorum; Adjourned Meetings and Notice Thereof..............1
     Section 4.     Voting.....................................................1
     Section 5.     Proxies....................................................2
     Section 6.     Special Meetings...........................................2
     Section 7.     Notice of Stockholder's Meetings...........................2
     Section 8.     Maintenance and Inspection of Stockholder List.............2
     Section 9.     No Stockholder Action by Written Consent...................2

ARTICLE III DIRECTORS..........................................................3

     Section 1.     The Number of Directors....................................3
     Section 2.     Vacancies..................................................3
     Section 3.     Powers.....................................................3
     Section 4.     Place of Directors' Meetings...............................3
     Section 5.     Regular Meetings...........................................3
     Section 6.     Special Meetings...........................................3
     Section 7.     Quorum.....................................................3
     Section 8.     Action Without Meeting.....................................4
     Section 9.     Telephonic Meetings........................................4
     Section 10.    Committees of Directors....................................4
     Section 11.    Minutes of Committee Meetings..............................5
     Section 12.    Compensation of Directors..................................5
     Section 13.    Indemnification............................................5

ARTICLE IV OFFICERS............................................................7

     Section 1.     Officers...................................................7
     Section 2.     Election of Officers.......................................7
     Section 3.     Subordinate Officers.......................................7
     Section 4.     Compensation of Officers...................................7
     Section 5.     Term of Office; Removal and Vacancies......................7
     Section 6.     Chairman of the Board......................................8
     Section 7.     President and Chief Executive Officer......................8
     Section 8.     Vice President.............................................8
     Section 9.     Secretary..................................................8
     Section 10.    Assistant Secretaries......................................8
     Section 11.    Vice President - Finance...................................9


                                          1.



     Section 12.    Assistant Treasurer........................................9

ARTICLE V        CERTIFICATES OF STOCK.........................................9

     Section 1.     Certificates...............................................9
     Section 2.     Signatures on Certificates.................................9
     Section 3.     Statement of Stock Rights, Preferences, Privileges.........9
     Section 4.     Lost Certificates.........................................10
     Section 5.     Transfers of Stock........................................10
     Section 6.     Fixing Record Date........................................10
     Section 7.     Registered Stockholders...................................10

ARTICLE VI       GENERAL PROVISIONS ..........................................11

     Section 1.     Dividends.................................................11
     Section 2.     Payment of Dividends; Directors' Duties...................11
     Section 3.     Checks....................................................11
     Section 4.     Fiscal Year...............................................11
     Section 5.     Corporate Seal............................................11
     Section 6.     Manager of Giving Notice..................................11
     Section 7.     Waiver of Notice..........................................12
     Section 8.     Annual Statements.........................................12

ARTICLE VII AMENDMENTS........................................................12

     Section 1.     Amendment by Directors or Stockholders....................12


                                          2.