Exhibit 10.35a
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AMENDMENT NO. 1
TO AGREEMENT ENTERED INTO AS OF DECEMBER 14, 1992
BY GTE SPACENET CORPORATION AND AMSC SUBSIDIARY CORPORATION
Reference is made to the Agreement entered into as of December 14,
1992, by GTE Spacenet Corporation (as assumed by GE American Communications,
Inc.) ("Americom") and AMSC Subsidiary Corporation ("AMSC") with respect to
conduct of certain satellite operations on a non-interference basis (the
"Agreement"). Capitalized terms used herein without definition shall have the
respective meanings set forth in this Agreement.
WHEREAS, AMSC is considering a transaction whereby the satellite it
operates at 101 degrees ▇.▇. may have modified telemetry carrier parameters from
those anticipated in the Agreement;
WHEREAS, AMSC has discussed these potential technical changes with
Americom, and Americom has indicated that such changes could be accommodated in
the Agreement.
NOW THEREFORE, the parties agree to amend the Agreement as follows:
1. Exhibits 1 and 2 to the Agreement shall be amended to provide an
alternative Frequency (MHz) for the Telemetry Carrier Parameters, at either
11700.5, 11702.75, or 11701.0 in accordance with the attached revised Exhibits 1
and 2.
2. Americom recognizes that AMSC's discussions include the potential
sharing of ownership and use of AMSC-1, and may include a substitute satellite
to be located at 101 degrees ▇.▇., consistent with revised Exhibits 1 and 2.
Americom agrees that such shared ownership and use and substitution is
consistent with the terms of the Agreement, as amended herein.
3. The information provided herein shall be subject to the provisions
of Section 7.9 of the Agreement.
4. Except as expressly modified herein, the Agreement shall remain in
full force and effect.
IN WITNESS THEREOF, the parties have entered into this amendment as of
the 7th day of November, 1997.
AMSC SUBSIDIARY CORPORATION GE AMERICAN
COMMUNICATIONS, INC.
/s/ ▇▇▇▇▇ ▇▇▇▇▇ /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇
By: ▇▇▇▇▇ ▇▇▇▇▇ By: ▇▇▇▇▇▇ ▇. ▇▇▇▇▇
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Title: Vice President and Title: Sr. Vice President
General Counsel
Exhibit 1
AMSC TELEMETRY, TRACKING AND COMMAND PARAMETERS
COMMAND PARAMETERS Frequency 1 Frequency 2 Units
Frequency 14449.5 14000.5 MHz
Maximum Flux Density -85.0 -100.0 dBW/m2
Antenna Coverage Omni North America
Polarization Vertical Horizontal
Modulation FM FM
Peak Deviation 300 300 kHz
Occupied Bandwidth 1 1 MHz
Emission Designator 700KF9D 700KF9D
TELEMETRY CARRIER PARAMETERS
Frequency 11701.0 11700.5 or MHz
11702.75*
Antenna: Switchable between omni and directive
▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇, ▇ ▇▇▇▇▇▇ ▇▇▇▇▇, ▇ radian
Occupied Bandwidth 100 100 kHz
Emission Designator 138KGXD
Frequency Stability ▇/-▇▇ ▇/-▇▇ ▇▇▇
SATELLITE TELEMETRY ANTENNA PARAMETERS:
If uses TMI Satellite currently at 106.5 degrees
Antenna Omni Directive
Polarization Horizontal Vertical
Peak EIRP 7.4 dBW 17.5 dBW
SATELLITE TELEMETRY ANTENNA PARAMETERS:
If continue to use AMSC-1
Antenna Omni Directive
Polarization Horizontal Vertical
Antenna 9 dBW 11 dBW
TT&C EARTH STATION CHARACTERISTICS
A. FOR 8 METER ANTENNA DIAMETER TT&C EARTH STATION:
Antenna Diameter 8 meters
On Axis Receive Gain 58.5 dBi
On Axis Transmit Gain 59.5 dBi
Off Axis Gain 29-25*LOG (theta) dBi
for theta greater than
or equal to 1 degree
G/T 34 dB/K
Polarization Linear
B. FOR 11 METER ANTENNA DIAMETER TT&C EARTH STATION:
Antenna Diameter 11 meters
On Axis Receive Gain 60 dBi
On Axis Transmit Gain 61 dBi
Off Axis Gain 29-25*LOG (theta) dBi
for theta greater than
or equal to 1 degree
G/T 37 dB/K
Polarization Linear
* The telemetry transmitter tuned to 11702.75 MHz will operate only through the
omni antenna after GE American Communications Inc. begins operating a
replacement for its current satellite at 101 degrees West. The maximum EIRP
radiated on this frequency at horizontal polarization will be +7.5 dBW in a 100
kHx bandwith.
Exhibit 2
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GE TRANMISSION PARAMETERS
EARTH-TO-SPACE DIRECTION
Maximum, co-polarized power flux density in 1 MHz toward the
satellite at 101 degrees West:
-130dBW/m2 at 14000.5 MHz
-115dBW/m2 at 14499.5 MHz
SPACE-TO-EARTH DIRECTION
Maximum, satellite co-polarized EIRP in ▇▇▇ ▇▇▇
-▇▇▇▇▇ at 11700.5 MHz and 11701.0 MHz
Maximum, satellite co-polarized EIRP in ▇▇▇ ▇▇▇ ▇▇▇▇▇▇:
▇▇▇▇▇ ▇▇▇▇, ▇▇▇▇▇▇▇, ▇▇▇▇▇▇; and Edmunton, Alberta, Canada
-15.6dBW at 11702.75 MHz
