FCC Web Documents citing 25.224

as compiled by hallikainen.com/FccRules on 2012 07 01

• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1132A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1132A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1132A1.txt
  • technical requirements of this rule, than if its space station were located at the 95° W.L. Appendix F orbital location. Intelsat calculated its required PFD reduction based on the geocentric angular separation between its proposed orbital location and the nearest adjacent Appendix F location, 99° W.L., which is 3.85° away. Intelsat also utilized the consumer antenna characteristics specified in Section 25.224(a). The geocentric angular separation between two satellite orbital locations in geostationary orbit is the angle between the two orbital locations as measured with respect to the center of the Earth. We find, however, that because the consumer antennas will be located on the Earth's surface, topocentric angular separations should be used in making the PFD reduction calculations. The topocentric angular
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1132A1_Rcd.pdf
  • with the technical requirements of thisrule, than if its space station were located at the 95° W.L. Appendix F orbital location.24Intelsat calculated its required PFD reduction based on the geocentric angular separation between its proposed orbital location and the nearest adjacent Appendix F location, 99° W.L., which is 3.85° away. Intelsat also utilized the consumer antenna characteristics specified in Section 25.224(a).25The geocentric angular separation between two satellite orbital locations in geostationary orbit is the angle between the two orbital locations as measured with respect to the center of the Earth. We find, however, that because the consumer antennas will be located on the Earth's surface, topocentric angular separations should be used in making the PFD reduction calculations. The topocentric angular separation
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1624A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1624A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1624A1.txt
  • W.L. Appendix F orbital location. To ensure that the DIRECTV RB-2 space station will not cause more interference to other co-frequency adjacent space stations, DIRECTV calculates that its proposed offset results in 0.5 dB less discrimination, based on the reduction of topocentric angle and the assumption of a 45 cm receive antenna that meets the reference antenna pattern of Section 25.224. DIRECTV properly used topocentric angular separation, the angle between the two orbital locations as measured with respect to an earth station located on the surface of the Earth, in making the PFD reduction calculations. We calculated the Section 25.224 antenna gains based on the topocentric angles between DIRECTV's requested orbital location of 102.825° W.L. and the 99° W.L. Appendix F
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-1624A1_Rcd.pdf
  • 103° W.L. Appendix F orbital location.74 To ensure that the DIRECTV RB-2 space station will not cause more interference to other co-frequency adjacent space stations, DIRECTV calculates that its proposed offset results in 0.5 dB less discrimination, based on the reduction of topocentric angle and the assumption of a 45 cm receive antenna that meets the reference antennapattern of Section 25.224.75DIRECTV properly used topocentric angular separation, the angle between the two orbital locations as measured with respect to an earth station located on the surface of the Earth, in making the PFD reduction calculations. 31.We calculated the Section 25.224 antenna gains based on the topocentric angles between DIRECTV's requested orbital location of 102.825° W.L. and the 99° W.L. Appendix F orbital
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-07-76A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-07-76A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-07-76A1.txt
  • * * * (c) * * * (2) 17/24 GHz BSS telemetry earth stations are protected from harmful interference caused by other space stations to the extent set forth in paragraph (c)(1) of this Section. Receive-only earth stations in the 17/24 GHz BSS are protected from harmful interference caused by other space stations to the extent set forth in Section 25.224 of this Part. 15. Amend Section 25.210 by revising paragraphs (f) and (i) to read as follows: § 25.210 Technical requirements for space stations in the Fixed-Satellite Service. ***** (f) All space stations in the Fixed Satellite Service in the 3600-3700 MHz, 3700-4200 MHz, 5091-5250 MHz, 5825-5925 MHz, 5925-6425 MHz, 6425-6525 MHz, 6525-6700 MHz, 6700-7025 MHz, 10.7-10.95 GHz, 10.95-11.2 GHz,