Attachment Exhibit 3 SES-STA-20100923-01193

Attachment Exhibit 3

This document pretains to SES-STA-20100923-01193 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2010092301193_841551

Special Temporary Authority Request

Exhibit 3: Summary of IOT Earth Station Technical Information

Date submitted: September 23, 2010

Applicant: GUSA Licensee LLC

File No.: SES-AFS-20091221-01601 (for E030266)

Call Sign: E030266

Purpose of STA:

GUSA Licensee LLC (“GUSA”) is seeking Special Temporary Authority to operate the IOT (“In-Orbit
Test”) antenna located at Clifton, TX to perform the transponder testing of the launched satellites to
affirm the post-launch health to verify the performance characteristics of the individual Globalstar
satellites.

In addition, GUSA is requesting authority to operate at a power higher than that specified in 47 C.F.R §
2.106, footnote 5.364 to support the transponder testing of the launched satellites. One of the primary
tests to be performed for the health of the satellites is the determination and verification of spacecraft
antenna patterns. Uplink, or spacecraft 1.6 GHz receive, antenna verification requires the use of an
unmodulated carrier (CW) at an EIRP greater than that transmitted from a Globalstar handset
transceiver. This increased EIRP is required in order to create sufficient dynamic range to provide the
ability to measure peak-to-null antenna pattern variations of 30 dB. The performance of these In-Orbit-
Tests will be crucial to the successful deployment of the replacement Globalstar spacecrafts that are
planned for the near future. The attached link budget in the Table 1 indicates the C/N expected with an
EIRP of 19 dBW. As shown in the link budget, even with the level of 19 dBW, worst case C/N falls
below the required dynamic range for the pattern measurements. This transmit level will be operated for
short periods only during testing of the satellites at a fixed ground location at Clifton, TX.

Downlink, or spacecraft 2.4 GHz transmit, antenna verification requires the use of a high gain antenna
which is accommodated by the receive function of the subject antenna.

The International Bureau has previously granted such requests. See, e.g., Application of
TerreStarLicense, Inc., File No. SES-STA-20091102-01408 (granted Jan. 7, 2010).

STA term: October 18, 2010, to November 17, 2010

Site Location: Clifton, Texas

Latitude: 31 ° 48 ' 2.1 " N

Longitude: 97 ° 36 ' 46.0 " W

STA Request – GUSA Licensee – Exhibit 3
Page 2 of 3

Transmit frequency: 1610 – 1618.725 MHz

Receive frequency: 2483.5-2500 MHz

Polarization: LHCP

Antenna Size: 1.2 m
Gain: Tx: 23.4 dBi at 1.620 GHz
Rx: 26.7 dBi at 2.490 GHz

Maximum antenna height: 5 meters above ground level

Necessary Bandwidth: Transmit bandwidth is 8.725 MHz
Receive bandwidth is 16.5 MHz
Maximum carrier bandwidth is 50 kHz

Carrier: See table below

Frequency Band T/R Mode & Emission Maximum Maximum Modulation
(MHz) Polarization Designator EIRP EIRP Density
(dBW) (dBW/4kHz)
1610-1618.725 Tx – LHCP N0N 19 19 Unmodulated CW for testing

2483.5-2500 Rx – RHCP N0N Unmodulated CW for testing

Satellite: HIBLEO-X GLOBALSTAR 2.0 (Pending France-licensed Globalstar Big-
LEO MSS system)
Orbital Location: NGSO (1414 km altitude, 52 degree inclination)
Elevation Angle (E/W): 5 degrees to 90 degrees
Azimuth (E/W): 0 degrees to 360 degrees

Satellite: S2115 (U.S.-licensed Globalstar Big LEO MSS system)
Orbital Location: NGSO (1414 km altitude, 52 degree inclination)
Elevation Angle (E/W): 5 degrees to 90 degrees
Azimuth (E/W): 0 degrees to 360 degrees

FAA notification is not required as the antenna structure does not exceed Part 17 notice criteria.

Document Created: 2010-09-23 16:50:48
Document Modified: 2010-09-23 16:50:48

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