Attachment Exh. 2 - Tech Info

This document pretains to SES-STA-20110828-01005 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2011082801005_913732

Special Temporary Authority Request Exhibit 2: Summary of IOT Earth Station Technical Information Date submitted: August 24, 2011 Applicant: GUSA Licensee LLC File Nos.: SES-MFS-20091221-01601 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 spacecraft 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. STA term: 60 days (beginning on August 30, 2011) Site Location: Clifton, Texas Latitude: 31 ° 48 ' 2.1 " N Longitude: 97 ° 36 ' 46.0 " W Transmit frequency: 1610 – 1618.725 MHz

GUSA Licensee LLC – 60-day Request for STA – August 24, 2011 (Clifton, TX - IOT) Page 2 of 3 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 (French-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.

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Document Created: 2011-08-24 14:36:49
Document Modified: 2011-08-24 14:36:49
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