Supplemental Letter

SUPPLEMENT submitted by EchoStar Satellite Operating Corporation

Supplement

2016-05-12

This document pretains to SAT-LOA-20150512-00034 for Application to Launch and Operate on a Satellite Space Stations filing.

IBFS_SATLOA2015051200034_1135830

May 12, 2016 By eFile Marlene H. Dortch Secretary Federal Communications Commission 445 12th Street, SW Washington, D.C. 20554 Re: Application for Authority to Operate EchoStar-1 as an In-orbit Spare IBFS File Nos. SAT-LOA-20150512-00034 Call Sign S2943 (formerly, S2739) Dear Ms. Dortch: EchoStar Satellite Operating Corporation (“EchoStar”) submits this supplemental letter to clarify the technical information set forth in Table 9-1 of the Technical Annex of the above-referenced application for authority to operate the EchoStar-1 (Call Sign S2943) satellite as in-orbit spare at 77.25° W.L. Specifically, EchoStar revises Table 9-1 by (i) specifying the maximum downlink EIRP without reference to specific frequencies; and (ii) correcting a typographical error regarding the uplink polarization, as follows: Table 9-1: Summary of the TT&C Subsystem Performance Parameter Performance 5926.5 MHz (horn antenna) On-Station Command Frequency 6423.5 MHz (omni antenna) Uplink Flux Density Between -80 and -96 dBW/m2 Uplink Tx Earth Station Horizontal Linear Polarization 4198.5 MHz On-Station Telemetry Frequencies 4199.5 MHz 10.6 dBW (horn antenna) Maximum Downlink EIRP 8.9 dBW (omni antenna) Downlink Polarization Horizontal Linear EchoStar Satellite Operating Corporation 100 Inverness Terrace East • Englewood, CO 80112 • Tel: 303.706.4000

May 12, 2016 Page 2 Please direct any questions regarding this matter to the undersigned. Sincerely, /s/ Jennifer A. Manner Jennifer A. Manner Senior Vice President, Regulatory Affairs cc: Diane Garfield (FCC)


Document Created: 2010-01-01 00:00:00
Document Modified: 2010-01-01 00:00:00
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