Attachment 5850 MHz no need of

5850 MHz no need of

LETTER submitted by Commission

Request that COMSAT provided Information

0000-00-00

This document pretains to SES-MOD-20010523-00979 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2001052300979_1074222

FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 February 5, 2002 In Reply Refer To: o Call Sign: E000296 File No.: SES—MOD—20010523—00979 J Mr. Robert A. Mansbach Senior Counsel — COMSAT Corporation 6560 Rock Spring Drive Bethesda, Maryland, 20817 Re: Application of COMSAT Corporatiofi to modify its existing earth station operating in the frequency bands of 5850—5925 MHz and 3625—3700 MHz. Mr. Mansbach: An examination of the above—referenced application discloses that additional information is necessary before processing may continue. We request that COMSAT Corporation provide the #ollowing information: | ) Please submit a letter signed by COMSAT Corporation stating the following: 1) For the frequency band of 3625—3700 MHz band: It has completed an EMC analysis according to US245, based on the NTIA TR— 99—361 Report, Technical Characteristics ofRadiolocation Systems operating in the 3.1—3.7 GHz Band and Proceduresfor assessing EMC with Fixed Earth Station Receivers (available at http://www.ntia.doc.gov/osmhome/reports html). It has determined the potential for unacceptable interference that may be caused to its receiving earth station and that it agrees to accept such.interference. Furthermore, it is aware that use of a RF filter ahead of thelow noise amplifier %, in sbbye (LNA) would limit potential out—of—band interference to the recelvmg earth . station. . HSbalPle ,, LIICZT 2) For the frequency band of 5850—5925 MHz band: It is aware of the co—primary Federal Government radiolocation allocation in the 5850—5925 MHz band in the U.S. and Possessions; that it is aware of the potenti#1®"‘:. electromagnetic compatibility issues in the frequencyband, (See, e.g., NTIA _ Ossr Report Federal Radar Spectrum Requirements, an t C La (http://www.ntia.doc.gov/osmhome/reports/ntia00—40/nt1a0040.pdf), NTIA Report 83—115, Spectrum Resource Assessment in the§650—5925 MHz Band §6

(http://www.fee.gov/ib/srd/fedreg_ntiareport.html), and FCC Fifth Notice of Inquiry in Preparation for a General World Administrative Conference in 1979 (Docket No. 20271; FCC 77—349)); and that it agrees to accept this potential for unacceptable interference that may be caused to its communication links by radiolocation systems, including high—powered land—based transportable and shipborne radar transmitters operating in the frequency band in accordance with footnote G2. Please feel free to contact Ms. Sylvia Lam on any questions you may have at (202) 418—0742. The requested information should be supplied as a supplemental letter to the above referenced application, signed by COMSAT Corporation. If the Commission within 21 days of this letter does not receive the supplemental letter, the application will be dismissed without prejudice as defective and your filing fee will be forfeited. Sincerély, Ronald T. Repasi Chief, Satellite Engineering Branch Satellite and Radiocommunication Division International Bureau


Document Created: 2015-01-26 15:42:30
Document Modified: 2015-01-26 15:42:30
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