Attachment Cover letter

This document pretains to SES-LIC-20070802-01024 for License on a Satellite Earth Station filing.

IBFS_SESLIC2007080201024_585211

August 13, 2007 Scott Kotler, Chief Systems Analyst Branch Satellite Division, International Bureau Federal Communications Commission 445 12th Street SW Washington, DC 20554 Re: Amendment to Application for New Fixed Earth Station License SES-LIC-20070802-01024 Dear Mr. Kotler, Pursuant to §25.116 1 of the Rules and Regulations (“Regulations”) of the Federal Communications Commission (“Commission”), Shell Communications, Inc. (“Shell”), by way of the underlying application submitted by the undersigned, seeks Commission authority to amend pending application SES-LIC-20070802-01024. The reason for the amendment is to change response to question E15 from “YES” to “NO.” In addition, a demonstration that the proposed antenna is two-degree compliant by showing that its off-axis EIRP density calculation is less than the parameters specified in §25.212 2 of the Regulations is attached as Exhibit A. Finally, additional cuts of antenna radiation patterns are included in the amendment. The proposed antenna, a C-band Andrew 2.4m Type 243, does not strictly comply with §25.209 of the Regulations 3 . However, pursuant to §25.220 (b-c) 4 , of the Regulations, an applicant may request the Commission to consider a non-compliant antenna if it can be shown that the operational power density will be below the requirement of §25.212(c)(2) 5 . Specifically, the earth station operator must provide the power and power density levels that result by reducing the values stated in §25.212(c)(2) by the number of decibels that the non-compliant antenna fails to meet the standards of §25.209. 1 47 C.F.R. 25.116. 2 47 C.F.R. 25.212. 3 47 C.F.R. 25.209. 4 47 C.F.R. 25.220 (b-c). 5 47 C.F.R. 25.212(c)(2). P.O. BOX 1213, HOUSTON, TEXAS 77549 ● (281) 317-1397 TEL ● (281) 217-8085 FAX www.rmtelecomlaw.com ● info@rmtelecomlaw.com

In this case, the proposed antenna exceeds the patterns of §25.209 by approximately 13dB in the ±70° to 110º region measured at 6.65GHz along the elevation axis. 6 The antenna is designed to operate with a Maximum EIRP Density into the antenna flange of –25.28 dBW/4KHz. This is 22.58 dB below the –2.7dBW/4KHz limit. Applying the methodology in §25.220 (b-c), the Maximum EIRP Density at antenna flange is increased by 13dB to yield, -25.28 dBW/4KHz + 13 dB = -12.28 dBW/4KHz. As calculated, this figure is still below the allowed Maximum EIRP Density at the antenna flange of –2.7.0 dBW/4KHz by 9.58 dB Sincerely, /s/ Raul Magallanes Raúl Magallanes Attorney 6 The starting angle in the GSO orbital plane for antenna radiation pattern compliance subject to 47 C.F.R. 25.209(a)(1), for Ku-band, now starts at 1.5° rather than 1.25°. See 2000 Biennial Regulatory Review Streaming and Order Revisions of Part 25 of the Commission’s Rules Governing the Licensing of, and Spectrum Usage by, Satellite Network Earth and Space Stations. SIXTH REPORT AND ORDER, IB Docket 00-248, FCC 05-62, Paragraph 22, (Released March 15, 2005.)

Exhibit A Spectral Density Calculation PROJECT PARAMETERS: Antenna Manufacturer: Andrew Type 243 Antenna Diameter: 2.40 m Transmit: 6.25 GHz Horizontal Antenna Gain (Main Beam): 42.00 dBi Max EIRP Density at Flange: -25.28 dBw/4KHz FCC EIRP Density Limit: -2.70 dBw/4KHz §25.209(a) CONFORMING ANTENNA Angle §25.209 Gain EIRP Density Actual Gain EIRP Density EIRP Margin (Degrees) (dBi) (dBw/4KHz) (dBi) (dBw/4KHz) (dBw/4KHz) 1.50 24.60 21.90 24.00 -1.28 -23.17 1.75 22.92 20.22 17.62 -7.66 -27.88 2.00 21.47 18.77 18.50 -6.78 -25.55 2.25 20.20 17.50 17.62 -7.66 -25.15 2.50 19.05 16.35 13.00 -12.28 -28.63 3.00 17.07 14.37 7.00 -18.28 -32.65 3.50 15.40 12.70 6.00 -19.28 -31.97 4.00 13.95 11.25 2.00 -23.28 -34.52 4.50 12.67 9.97 4.80 -20.48 -30.45 5.00 11.53 8.83 3.50 -21.78 -30.60 5.50 10.49 7.79 7.00 -18.28 -26.07 6.00 9.55 6.85 -5.50 -30.78 -37.62

Exhibit A (cont.) Spectral Density Calculation PROJECT PARAMETERS: Antenna Manufacturer: Andrew Type 243 Antenna Model: 2.40 m Transmit: 6.25 GHz Vertical Antenna Gain (Main Beam): 42.00 dBi Max EIRP Density at Flange: -25.28 dBw/4KHz FCC EIRP Density Limit: -2.70 dBw/4KHz §25.209(a) CONFORMING ANTENNA Angle §25.209 Gain EIRP Density Actual Gain EIRP Density EIRP Margin (Degrees) (dBi) (dBw/4Khz) (dBi) (dBw/4Khz) (dBw/4Khz) 1.50 24.60 21.90 21.00 -4.28 -26.17 1.75 22.92 20.22 15.75 -9.53 -29.75 2.00 21.47 18.77 18.00 -7.28 -26.05 2.25 20.20 17.50 16.37 -8.91 -26.40 2.50 19.05 16.35 10.00 -15.28 -31.63 3.00 17.07 14.37 10.50 -14.78 -29.15 3.50 15.40 12.70 8.00 -17.28 -29.97 4.00 13.95 11.25 -6.00 -31.28 -42.52 4.50 12.67 9.97 5.50 -19.78 -29.75 5.00 11.53 8.83 -2.80 -28.08 -36.90 5.50 10.49 7.79 4.80 -20.48 -28.27 6.00 9.55 6.85 1.00 -24.28 -31.12


Document Created: 2007-08-13 14:13:24
Document Modified: 2007-08-13 14:13:24
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