Attachment Exh. 2 - Tech Info

This document pretains to SES-STA-20110225-00211 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2011022500211_871472

Special Temporary Authority Request Exhibit 2: Summary of IOT Earth Station Technical Information Date submitted: February 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 February 16, 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 – February 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.

GUSA Licensee LLC — 60—day Request for STA — February 24, 2011 (Clifon, TX — TOT) Page 3 03 "Table f Link Budget forthe IOT Antemna 116 Gitz up?? Gitz down _ Tplink Analysis Un Frequency is one EIRP per user 190 cow Altude n km Usereleration angle s deo Stant Range soss m Pathloss 1sa5 «o Polarztion & Tracking loss a «o C Rx Sigral Stenghh 1505 «o Satelite antonna gain t2so asi Linelss 200 «o Usersignal attransponder «se cow System noise temperature sns o k Termal noise densty, No 20e cowhie 10T measurement bandvicth se coite Uplnk C(\) 2re «o Norminal ransponder gain s2ra «o Downlink Analysi Frequency ss0 one TX pover per use a4 cow Trensmit nc lss 22 «o Satelite antonna gain «0o c EIRP peruser s5 cow GW elertion angle s deo Range soss km Free space loss (6 deg GW eloy) «s13 «o Polarzstion & tracking loss a1 «o Ponting loss 10 «o RX signaliuser‘satelite «1800 cow GW antenna gai(inct. nc losses) «95 c RX signalat antenna outputhier‘satelite 1394 cow System noise temperature i7 k Tremmal naise densty, No 2075 dowhte Downink C/N) aa «o Overll(uptdoun) G(N) 25 «o Requred Measurement Dynamic Range 200 «o Worstcase Measurement C 32


Document Created: 2011-02-24 12:32:54
Document Modified: 2011-02-24 12:32:54
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