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                                                                   EXHIBIT 10.10

September 14, 1998

Mr. David M. Brown
131 South Eudora Street
Denver, Colorado 80110

Dear Mr. Brown:

This letter is intended to set forth various arrangements in connection with
your employment with KaStar Satellite Communications Corp. (the "Company").

INITIAL EMPLOYMENT

You are being hired, effective October 19, 1998, to serve as General Counsel of
the Company. Your initial salary will be at the rate of $125,000 per year, with
a year-end cash bonus at the discretion of the board of directors of the
Company. In addition, upon execution of this letter agreement you will be paid
$20,000 as a one-time signing bonus in lieu of relocation and placement
expenses. You will receive all standard Company executive benefits, including
without limitation, if offered, 401K match, health benefits and life insurance.
With respect to salary, benefits and equity incentives, you will be treated no
less favorably than other senior management at a comparable level.

SEVERANCE ARRANGEMENTS

In the event that your employment with the Company is terminated by the Company
without "Cause" (as defined below), you will be entitled to receive twelve
months of your base salary at the time of termination (without giving effect to
any reduction in salary occurring at any time prior to such termination) as
severance pay, payable in equal monthly installments commencing the day of such
termination, provided that you execute and deliver to the Company, and not
revoke, a full release of all potential claims against the Company reasonably
satisfactory in form and substance to the Company. For purposes of this letter,
the Company will be deemed to have terminated your employment without Cause if
you voluntarily terminate employment with the Company because (a) you are
required by the Company to relocate away from the Denver, Colorado metropolitan
area or to accept a reduction in base salary or benefits or (b) of a breach of
the Company's representations and warranties.

If at any time during the severance pay period associated with a termination or
deemed termination of your employment by the Company without Cause, the Company
fails to make any such payment on the date due or within 10 days after written
notice to the Company in accordance with the Stock Option Agreement (described
below) that such payment is delinquent, you will automatically be released in
full from all further obligations under the Noncompetition Agreement you are
executing contemporaneously with the signing of this letter, as described below
(the "Noncompetition Agreement"), and notwithstanding any such Noncompetition
Agreement release in the case of such

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termination or deemed termination without Cause, the Company will remain liable
for payment in full of all of the twelve months' of severance payments remaining
unpaid.

If you voluntarily terminate employment with the Company (except as described in
the last sentence of the first paragraph under this heading "Severance
Arrangements"), you will be entitled to twelve months of your base salary at the
time of such termination (without giving effect to any reduction in salary
occurring at any time prior to such termination) as severance pay, provided that
the Company will not be obligated to pay any such severance otherwise payable
after the date it delivers written notice to you releasing you in full from all
further obligations under the Noncompetition Agreement.

"Cause" for termination will exist if you have engaged in (a) fraud,
embezzlement or any other crime involving moral turpitude, (b) gross or willful
neglect of duty, (c) material breach of any material Company written employee
policy or procedure, including but not limited to the Company's code of business
conduct, (d) unauthorized disclosure or use of any material confidential
information or trade secrets of the Company, (e) material breach of any material
document or instrument you sign or furnish to the Company, including without
limitation any stock option or employment agreement, (f) breach of fiduciary
obligation to the Company, and (g) insubordination, in each case that continues
after written notice from the Company.

In the event you and the Company are not able to agree as to whether your
termination was for Cause and cannot resolve the issue through a negotiated
settlement within ten days following the date of termination of employment (the
"Settlement Period"), then following the expiration of the Settlement Period,
you or the Company may initiate mandatory, binding arbitration proceedings with
the American Arbitration Association in Denver, Colorado. The arbitrator will be
a lawyer then actively engaged in the practice of law. The arbitrator's
decision, including preliminary rulings, shall be binding upon both you and the
Company and enforceable in a court of law. Both you and the Company hereby agree
to waive any right to seek judicial determination of whether your termination
was for Cause. Absent a negotiated settlement within the Settlement Period or
initiation of arbitration as described above, the Company's determination shall
be final. Each party shall bear its or his own costs and expenses (including
without limitation, attorneys' fees) of arbitration unless the arbitrator
determines otherwise in his award. All arbitration proceedings, including
settlements and awards, arising out of this letter agreement will be treated as
confidential by you, and the Company.

In addition to the termination benefits described above, you will also be
entitled to any other severance benefits that are provided generally to
employees of the Company, as well as any rights you may have pursuant to COBRA
with respect to the continuation of medical insurance coverage.

OPTIONS

Contemporaneously with signing of this letter agreement, the Company and you
will enter into a Stock Option Agreement in the form attached as Exhibit A to
this letter (the "Stock Option Agreement").

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In addition, the Company will cause issuance to you, by each other entity in
which the Company holds a direct or indirect interest that is pursuing
development of any Ka-band satellite opportunity or arising out of the Rights
(as defined below), of options to acquire the equivalent of .75% of the total
equity (on a fully diluted basis) in each such entity, calculated through the
earlier of November 1, 2004 or the initial public offering of the applicable
entity. Such options will be granted as of the date the Company acquires its
direct or indirect interest in the entity. Vesting will be at the rate of
33-1/3% annually, commencing October 19, 1999, and the option will expire at the
end of the 10-year term applicable under the Stock Option Agreement. Other
provisions of any such option, including without limitation the option price per
share/percentage interest, will be as specified in the Stock Option Agreement,
with only those changes as necessary to reflect the different identity of the
issuer (and if applicable, its organizational status if it is not a
corporation). For purposes of this Agreement, the "Rights" refer to Federal
Communications Commission authorizations issued to the Company dated May 9, 1997
to construct, launch and operate geostationary Ka-band communications satellites
at 109.2 degrees W.L. and 73 degrees W.L. and the 2 applications filed December
22, 1997 by KaStarcom.World Satellite, LLC with the Federal Communications
Commission for authorizations to construct, launch and operate geostationary
Ka-band communications satellites at 175 degrees E.L. and 52 degrees E.L. and
any authorization granted pursuant to such application, including any
extensions, renewals, amendments or proceeds of any of the foregoing.

COMPANY REPRESENTATIONS AND WARRANTIES

The Company makes the following representations and warranties, as of the date
of this letter, on which Moore is relying in entering into the employment and
other arrangements described or referred to in this letter:

1.       The authorized capital stock of the Company consists solely of
         1,000,000 shares of voting common stock, no par value, of which a total
         of 1,000 shares are issued and outstanding.

2.       Except as provided in the Convertible Loan Agreement dated as of August
         20, 1998, between the Company and DirectCom Networks, Inc. (the
         "Convertible Loan Agreement"), and options issued to Thomas Moore,
         there are no outstanding or authorized (i) securities of the Company
         convertible into or exchangeable or exercisable for any shares of its
         capital stock, (ii) subscriptions, options, warrants, calls, rights,
         commitments, or other agreements or obligations of any kind obligating
         the Company to issue any additional shares of its capital stock or any
         other securities convertible into or evidencing the right to acquire or
         subscribe for any shares of its capital stock.

3.       The Company confirms that the representations and warranties in Section
         3.12 of the Convertible Loan Agreement are complete and correct. The
         Company's affiliate, KaStarcom.World Satellite, LLC ("LLC"), a Delaware
         limited liability company filed applications, which are currently
         pending with the Federal Communications Commission,

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         for authorizations to construct, launch and operate geostationary
         Ka-band communications satellites at 175 degrees E.L. and 52 degrees
         E.L. (the "FCC Applications"). The FCC Applications are correct and
         complete and are in proper form, and LLC is legally qualified to hold
         the licenses that are the subject of the FCC Applications, if and when
         granted. The Company will cause LLC to diligently pursue the granting
         of licenses pursuant to the FCC Applications. To the Company's best
         knowledge, no party has objected to the FCC Applications and no
         investigations are pending or threatened with respect to the FCC
         Applications.

NONCOMPETITION AGREEMENT

Contemporaneously with signing of this letter agreement, you will enter into the
Noncompetition Agreement in the form attached as Exhibit B to this letter,
provided that you receive an option agreement in the form attached as Exhibit C,
granting you the right to acquire the equivalent of .75% of the ownership
interests in LLC and in any entity in which LLC holds a direct or indirect
interest that is pursuing development of any Ka-band satellite opportunity or
arising out of the Rights, substantially equivalent to those described in this
letter and the Stock Option Agreement.

If the above letter and attached Exhibits accurately reflect our agreement with
respect to these matters, please execute both copies of this letter as indicated
below and return one signed copy to me.

Very truly yours,

KaStar Satellite Communications Corp.

By /s/ David M. Drucker
   ----------------------------------
David M. Drucker,  President

The foregoing letter agreement is
hereby agreed to this 14th day of September, 1998.

/s/ David M. Brown
-------------------------------------
David M. Brown

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                        AMENDMENT TO EMPLOYMENT AGREEMENT

         THIS AMENDMENT TO EMPLOYMENT AGREEMENT (this "Amendment"), is entered
into between David M. Brown ("Employee") and KaStar Satellite Communications
Corp., a Delaware corporation (the "Company"), and is dated as of May 23, 1999.

         WHEREAS, Employee and the Company's predecessor in interest, KaStar
Satellite Communications Corp., a Colorado corporation, entered into a letter
agreement dated September 14, 1998 (the "Employment Agreement");

         WHEREAS, the Employee and the Company desire to amend the terms of the
Employment Agreement.

         NOW THEREFORE, for and in consideration of the mutual promises and
covenants herein contained, it is mutually covenanted and agreed by the parties
hereto as follows:

         1.       Ratification of Employment Agreement. The Company hereby
                  ratifies and assumes all obligations under the Employment
                  Agreement. Except as expressly set forth in this Amendment,
                  all terms of the Employment Agreement will remain unchanged
                  and in full force and effect.

         2.       Employment At Will. The Company and the Employee agree and
                  acknowledge that the Employee's employment with the Company
                  may be terminated by the Employee or the Company at any time,
                  with or without cause and with or without notice. Any contrary
                  oral representations or agreements which may have been made to
                  Employee are superseded by this Amendment. The at-will nature
                  of the Employee's employment described in this Amendment,
                  together with the express terms of the Employment Agreement,
                  shall constitute the entire agreement between the Employee and
                  the Company concerning the circumstances under which either
                  the Employee or the Company may terminate the employment
                  relationship. No person affiliated with the Company has the
                  authority to enter into any oral agreement that changes the
                  terms of the Employment Agreement or the at-will nature of the
                  Employee's employment. The at-will term of Employee's
                  employment can only be changed in a writing signed by Employee
                  and the President of the Company, which expressly states the
                  intention to modify the at-will term of Employee's employment.

         3.       Salary. Effective as of May 13, 1999, the Employees salary is
                  increased to $145,000 per year.

         4.       No Change to Rights Under Employment Agreement. Nothing in
                  this Amendment shall alter in any way the rights or
                  obligations of the Company or the Employee as set forth in the
                  Employment Agreement, including, but not limited to, the
                  Employee's right to severance (as stated in the Employment
                  Agreement).

                                        KaStar Satellite Communications Corp.

                                        /s/ Thomas E. Moore
                                        ----------------------------------------
                                        Thomas E. Moore, President

                                        /s/ David M. Brown
                                        ----------------------------------------
                                        David M. Brown

                                       5<PAGE>   1
                                                                   EXHIBIT 10.11

                                September 9, 1998

Mr. Thomas E. Moore
10 Lynn Road
Englewood, Colorado 80110

         Re:      Directors of KaStar Satellite Communications Corp.

Dear Tom:

         This letter is being delivered by the undersigned in connection with
the letter agreement of even date between KaStar Satellite Communications Corp.
(the "Company") and Thomas E. Moore ("Moore").

         For so long as Moore is an employee of the Company, the undersigned
will cause all of the shares it beneficially owns, holds of record or otherwise
controls to be voted to elect and continue in office a board of directors of the
Company which includes at all such times one director designated by Moore, which
designation will be indicated by written notice signed by Moore and delivered
personally, by mail or fax to the undersigned as follows:

         c/o David M. Drucker
         KaStar Satellite Communications Corp.
         2701 Alcott, Suite 486
         Denver, Colorado 80211
         Facsimile: (303) 670-5103

The undersigned acknowledges that monetary damages for breach of this letter
agreement will be difficult to ascertain and that Moore will be irreparably
damaged by any breach of this letter, so Moore will be entitled to injunctive
relief against the undersigned with respect to any breach, in addition to any
damages that may be awarded.

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Mr. Thomas E. Moore
September 9, 1998
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         The undersigned confirms that it is the legal and beneficial owner of
930 outstanding shares of the Company's common stock. In connection with any
direct or indirect transfer of its common stock in the Company, the undersigned
will require the transferee to continue to be bound by this letter.

                                        Sincerely,

                                        TELEVERDE COMMUNICATIONS, L.P.

                                        By: Televerde Communications Corp.,
                                              general partner

                                            By: /s/ David M. Drucker
                                               ---------------------------------
                                                  David M. Drucker, President

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