Letter regarding NSS

LETTER submitted by Gogo LLC

1.65 Letter on Satellites Frequencies and Coverage

2013-01-15

This document pretains to SES-STA-20130107-00018 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2013010700018_981602

SatCom Law LLC 1317 F St. NW, Suite 400 Washington, D.C. 20004 T 202.599.0975 www.satcomlaw.com January 15, 2013 By Electronic Filing Ms. Marlene H. Dortch Secretary Federal Communications Commission 445 12th Street, S.W. Washington, D.C. 20554 Re: Gogo LLC STA Request for In-Flight Testing File No. SES-STA-20130107-00018, Call Sign E120106 Dear Ms. Dortch: Gogo LLC (“Gogo”), by its attorney and pursuant to Section 1.65 of the Commission’s rules, 47 C.F.R. § 1.65, hereby updates the record regarding Gogo’s above-referenced request for special temporary authority to perform in-flight testing (the “Gogo STA Request”). Specifically, Gogo is providing additional information regarding the satellites, frequencies, and coverage areas for the operations proposed in the Gogo STA Request. As described in the request, Gogo proposes to use two satellites for in-flight testing, SES-1 and NSS-703. The uplink spectrum will be in the conventional Ku-band in all cases, but the downlink spectrum varies depending on the specific satellite and beam being used, as shown in the table below. Satellite Satellite Location Beam Coverage Area Tx (GHz) Rx (GHz) Operator SES-1 101W U.S. & Canada 14-14.5 11.7 – 12.2 Spot beam 1 - North 14-14.5 10.95 – 11.2; Atlantic 11.45-11.7 Spot beam 2 – 14-14.5 11.7 – 11.95 SES 313E NSS-703 Northeastern U.S., (47W) Canada, North Atlantic Spot beam 3 - North 14-14.5 12.5-12.75 Atlantic & W. Europe

Ms. Marlene H. Dortch -2- January 15, 2013 Gogo is also attaching hereto for the Commission’s convenience the coverage maps depicting the three NSS-703 spot beams that were submitted in support of Gogo’s application for a blanket license for aeronautical operations. 1 As shown in these maps, the only NSS-703 beam with coverage of the U.S. is spot beam 2, which will use conventional Ku-band frequencies. NSS-703 spot beam 1, which uses extended Ku-band downlink frequencies, does not cover the U.S. and will not be used for Gogo in-flight testing in U.S. airspace. As previously discussed, the coverage of NSS-703 spot beam 3, which uses downlink frequencies in the 12.5-12.75 GHz band, is limited to ITU Region 1. 2 Please let me know if you have any questions regarding this matter. Respectfully submitted, /s/ Karis A. Hastings Karis A. Hastings Counsel for Gogo LLC karis@satcomlaw.com cc: Andrea Kelly Stephen Duall Paul Blais 1 See Gogo LLC, Call Sign E120106, File No. SES-AFS-20121008-00902, Annex 1. 2 See Gogo STA Request, Narrative at 2. Furthermore, Gogo will use this spectrum in foreign airspace only if it has received either enabling authority granted by the relevant foreign regulator or a confirmation that no such authority is required. See id.

NSS-703 Spot Beam Coverage Maps Fig. 1 KSpot 1 Downlink Beam, Ku-band Peak EIRP = 51.5 dBW Peak Beam Gain = 35.9 dBi Polarization Vertical Schedule S beam designator: KS1D -15.00 -6.00 0.00 -4.00 -2.00 -20.00 -8.00 -10.00

Fig. 2 KSpot 2 Downlink Beam, Ku-band Peak EIRP = 48.2 dBW Peak Beam Gain = 34.4 dBi Polarization Horizontal Schedule S beam designator: KS2D -10.00 -2.00 0.00 -4.00 -6.00 -15.00 -8.00 -20.00

Fig. 3 KSpot 3 Downlink Beam, Ku-band Peak EIRP = 51.1 dBW Peak Beam Gain = 36.6 dBi Polarization Horizontal Schedule S beam designator: KS3D 0.00 -4.00 -6.00 -8.00 -2.00 -10.00 -15.00 -20.00

Fig. 4 KSpot 1 Uplink Beam, Ku-band Peak G/T = 8.9 dB/K Peak Beam Gain = 36.9 dBi Min. Saturation Flux Density = -94 dBW/m2 Polarization Horizontal Schedule S beam designator: KS1U -6.00 -4.00 -2.00 0.00 -15.00 -20.00 -8.00 -10.00

Fig. 5 KSpot 2 Uplink Beam, Ku-band West Hemi Uplink Beam Peak G/T = 6.6 dB/K Peak Beam Gain = 34.9 dBi Min. Saturation Flux Density = -92 dBW/m2 Polarization Vertical Schedule S beam designator: KS2U -4.00 -6.00 -2.00 0.00 -10.00 -8.00 -20.00 -15.00

Fig. 6 KSpot 3 Uplink Beam, Ku-band Peak G/T = 9.4 dB/K Peak Beam Gain = 37.8 dBi Min. Saturation Flux Density = -90 dBW/m2 Polarization Vertical Schedule S beam designator: KS3U -6.00 -10.00 -2.00 0.00 -4.00 -20.0 -15.00 -8.00


Document Created: 2013-01-15 16:53:43
Document Modified: 2013-01-15 16:53:43
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