Attachment Dismissal_Ltr

This document pretains to SES-MOD-20000420-00658 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2000042000658_427830

— FEDERAL COMMUNICATIONS CommISssIiON WASHINGTON OFFICE OF THE CHAIRMAN June 28, 2002 In Reply Refer To: File No.: SES—MOD—20000420—00658 | Call Sign: E990402 Mr. Jason S. Robert Attorney for Globecomm Systems, Inc. IRWIN, Campbell & Tanneneald, P.C. 1730 Rhode Island Ave., N.W. Suite 200 Washington, D.C. 20036—3101 Re: Application for Modification of Earth Station License (E990402) to add HISPASAT 1C Satellite as a point of communication and operate in the 13.75 to 14.00 GHz band shared between government and non—government entities Dear Mr. Robert: Your above referenced earth station application proposes operation in the 13.75 to 14.00 GHz band. This band is shared on a co—primary basis with the federal government. As the attached letter from the National Telecommunications and Information Administration (NTIA) indicates, operation of the earth station as proposed would not protect U.S. Navy radiolocation receivers. Consequently we are dismissing this application, without prejudice. . Sincerely, | \Tz‘;’mfia s , / ta/ar/ Thomas S$.Tycz Chief Satellite Division Attachment — 1

®)s - we n n n we n s U w=iGE. «92 a '\ uniTED stares DePARTMENT OF commeErce National Telecommunications and Intormation Administration Wwashington, D.C. 20230 JN 20 Mr. Fred Thomas Liaison Representative Federal Communications Commussion Office of Engineering and Technology 7—A 164 Portals II 445 12 St. SW Washington. D.C. 20554 Dear Mr. Thomas: The purpose of this letter is to confirm the requirements for the provosed HISPASAT applications in the fixed—satellite service (FSS) in the band 13.75—14 GHz. The United States Government conducts radiolocation operations aboard ships worldwide. In response to initiati concerning homeland security, the U.S. Navy has increased responsibilities to protect litoral of the United States and an increased presence in our coastal regions. To protect radiolocatio receivers, a power flux density (PFD) value of —167 dBW/m*/4 kHz at the shoreline is required. Geographical separations ofthe FSS earth station from the shorelin= and/or combinations of distance and attenuation (e.g., terrain blockage, shielding, building sttenuations) must be to yield this PFD value at the closest shoreline. However, any atteruation used must be veri . for an analysis for review by NTIA and Navy. Based on the analys:s performed by the Navy, it was determined that the PFD levels at the shoreline exceeded the protection criteria stated above. — Attached is a draft checklist of requirements for earth stations in the FSS in the 13.75—14 GHz band for your review and use. Further questions regarding this sutject may be directed to Mr, Gordon Crandall at (202) 482—2191. Sincerely, Karl B. Nebbiz Deputy Associate Administrator Office of Spec—rum Management

T tE Us ISSUES TO BE CONSIDERED WHEN EVALUATING FSS EARTH STATIONS APPLICATIONS IN THE BAND 13.75—14 GHZ The FSS earth station shall be in conformance with the followag US foomotes: US356 in the band 13.75—14 GHz, an earth station in the fixed—satellite service shall have a minimum antenna diameter of4.5 m and the e.1.r.p. ofany emissicn should be at least 68 dBW and should not exceed 85 dBW. In addition the e.i.r.p., aversged over one second, radiated by a station in the radiolocatnon service towards the geostxtionary—satellite orbit shall not exceed 59 dBW. Receiving space stanons in the fixed—satellite service shall not claim protecton from radiolocation transmitting stations operarimg in accordance with the United States Table ofFrequency Allocations. ITU Radio Regulation No. S5.43A does not apply. US357 in the band 13.75—14 GHz, geostationary space stanons in he space research service for which information for advance publication has been received ty the IIU Radiocommunication Bureau (Bureau) prior to 31 January 1992 shall operate on an equal basis with stations in the fixed—satellite service; after that date, new geostanonary space stations in the space research service will operate on a secondary tasis. Until those geostationary space stations in the space research service for whic.1 informstion for advance publication has been received by the Bureau prior to 31 J«nuary 1992 cease to operate in this band: a) the e.irp. density of emissions from any earth station in the fixed—satellite service operating with a space station in geostatonary—satellite crbit shall not exceed 71 dBW in any 6 MHz band from 13.77 to 13.78 GHz, b) the e.ir.p. density of emissions from any earth station in the fixed—satellite service operating with a space station in non—geostationary—satellit> oarbit shall not exceed 51 dBW in any 6 MHz band from 13.77 to 13.78 GHz. Automanc power control may be used to increase the e.ir.p. densizy in any 6 MHz band in these frequency ranges to compensate for rain attenuation, to the extent that the power filux— density at the fixed—satellite service space station does not exceed ‘he value resulting from usebyanearthstahonofane.nrp of 71 dBW or 51 dBW, mzpp'opnne in any 6 MHz band in clear—sky conditions. Protection of the Government radiolocation service: In the original Report and Order that allocated FSS in the band 13.75—14 GHz (In the Matter of Amendment ofParts 2, 25 and 90 ofthe Commission‘s Rules to Allocate the 13.75—14.0 GHz Band to the Fixed—Satellite Service (FCC 96—177; ET Docket No. 96—20; RM—8638)) the following text appeared in paragraph 20: To faciiitate this coordination process, upon the request ofthe IRAC,[Footnote: See IRAC Comments at 1. See also note 11, supra.) we provide the following information for prospective licensees:

The United States Government conducts radiolocanon operations aboard ships worldwide. Although we are adopting ITU Footnote $5.502 as a basic sharing criteria between FSS uplinks and radiolocation, site selection for FSS earth stations must be coordinated and adjustments may te required to preclude harmful interference. A power flux density ("PFD") value of —167 dB(W/m*/4 kHz) is required to protect radiolocarion receivers, geographical separation ofthe FSS earth stations from the radar must be sufficient to yield this value. These matters will be addressed during the coordination phase with the Government." DoD will have to verify that they are satisfied that thislimit is met to protect their radiolocation operations (the majority ofthese operatidns are maritime) that operate throughout the band 13.75—14 GHz Protection of the NASA ns in the space rescarch NASA has TDRSS—to—Earth operations in the band 13.75—14 GHz. NASA will have to verify that their earth station receivers are protected from the FSS earth—stanon transmitters. The operator of the FSS earth station shall be aware that; 1. US337 (‘In the band 13.75—13.80 GHz, earth stations in the fixed—satellite service shall be coordinated on a case—by—case basis through the frequency assignrent subcommittee in order to minimize harmful interference to the Tracking and Data Relay Satellite System‘s forward space—to—space link (TDRSS forward link—to—LEO).") was written secause ofthe importance ofthis link, including the support ofmanned spaceflight and in exceptional circumstances FSS earth station operations may be requested to modify their cperations. 2. While the dates in ITU Radio Regulation footnote $5.503A }ave passed,‘ NTLA noted that NASA‘s Tropical Rainfal)l Measuring Miss:on (TRMM) sacellite system radar in the band 13.793—13.805 GHz is still operating." Since TRMM is a nighly valuable and visible U.S. asset, with a broad range of international users, NT LA has requested cooperation from the FCC and non—Federal Government entitie:: in providing assistance in reducing interference with the TRMM radar. ! Footnote $5.503A states: "Until 1 January 2000, stations in the fixed—satellite service shall not cause harroful interference to non—geostationary space stanions in the space research. and Earth exploration— satellitc services. Additionally, when planning earth stations in the fixed—satellite service to be brought inio service between 1 January 2000 and 1 January 2001, in order to accomn1odate the needs of spacebome precxpmontadmopermgmlhehndlz793—13.805 GHz, advantage should be taken of the consultation process and the information given in Recommendation TLU—R £A.1071." * See lewer from Frederick Wentland, Acting Associate Administrato:, Office of Spectrum — Management, NTIA, to Don Ablceson, Chief, International Bureau, FCC (Fet—rusary 28, 2002).


Document Created: 2005-04-13 09:15:24
Document Modified: 2005-04-13 09:15:24
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