FCC Web Documents citing 74.636

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

• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-01-92A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-01-92A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-01-92A1.txt
  • offers. Therefore, we propose to modify Section 74.535 to permit the use of any digital modulation in all aural BAS bands. 2. Maximum Effective Isotropic Radiated Power (EIRP) for Short Paths There are several rule sections used for TV BAS that work in tandem to regulate the amount of power that can be used at a specific station. Specifically, Section 74.636 of the Commission's rules limits, for some frequency bands, the maximum EIRP for which a TV BAS station can be licensed, and Section 74.644 specifies the minimum path length for which the maximum EIRP will be authorized for fixed links. Applicants proposing path lengths shorter than those specified in Section 74.644 are required to reduce power in accordance with the
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-02-23A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-02-23A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-02-23A1.txt
  • 101.101, 101.113, 101.147(l). See 47 C.F.R. Part 74, Subpart F. Television translator relay stations may also be authorized to use frequencies in the band 6875-7075 MHz on a secondary basis to other BAS stations operating in accordance with the Table of Frequency Allocations. See 47 C.F.R. § 2.106, footnote NG118. See 47 C.F.R. § 78.18(a)(7). See 47 C.F.R. §§ 74.602, 74.636, 78.101. See Establishment of Rules and Policies for the Digital Audio Radio Satellite Service in the 2310-2360 MHz Frequency Band, IB Docket No. 95-91, Report and Order, Memorandum Opinion and Order, and Further Notice of Proposed Rulemaking, 12 FCC Rcd 5754 (1997) ("SDARS R&O"), ¶¶ 127-137. We have authorized American Mobile Radio Corporation (now ``XM Radio'') and Satellite CD Radio,
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-02-298A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-02-298A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-02-298A1.txt
  • of pending digital applications, and its benefit would be minimal. We therefore find the issuance of a blanket waiver unnecessary, and decline to do so. 2. Maximum Effective Isotropic Radiated Power for Short Paths There are several TV BAS rules that work in tandem to regulate the amount of power that can be used at a specific station. Specifically, Section 74.636 limits, for some frequency bands, the maximum EIRP for which a TV BAS station can be licensed, and Section 74.644 specifies the minimum path length for which the maximum EIRP will be authorized for fixed links. Applicants proposing path lengths shorter than the minimum path lengths specified in Section 74.644, are required to reduce power in accordance with the equation
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-289A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-289A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-289A1.txt
  • systems in this band are limited to gateway stations. See 47 C.F.R. § 25.202. A gateway earth station is an earth station complex consisting of multiple interconnecting earth station antennas supporting the communication routing and switching functions of a non-geostationary satellite orbit fixed-satellite service (NGSO FSS) system as a whole. See 47 C.F.R. § 25.201. See, e.g., 47 C.F.R. § 74.636. Typically, BAS and CARS stations operate with EIRPs 10 to 15 dB below the maximum permissible limits. 7 C.F.R. § 15.209. The limit specified for frequencies above 960 MHz is 500 uV/m and is measured at 3 meters using a 1 MHz resolution bandwidth. This is equivalent to an EIRP of -41.25 dBm/MHz. It also is possible to operate intermittent
• http://www.fcc.gov/mb/engineering/part78.pdf
  • 51 Electronic Code of Federal Regulations: 5/6/2011 http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&sid=89769c06679a5b34a150ce4987153f04&rg... (b) For paths shorter than those specified in the Table, the EIRP shall not exceed the value derived from the following equation. EIRP = MAXEIRP 40 log(A/B) dBW Where: EIRP = The new maximum EIRP (equivalent isotropically radiated power) in dBW. MAXEIRP = Maximum EIRP as set forth in the Table in §74.636 of this part. A = Minimum path length from the Table above for the frequency band in kilometers. B = The actual path length in kilometers. Note to paragraph (b): For transmitters using Automatic Transmitter Power Control, EIRP corresponds to the maximum transmitter power available, not the coordinated transmit power or the nominal transmit power. (c) Upon an appropriate technical