FCC Web Documents citing 25.254

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

• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-06-121A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-06-121A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-06-121A1.txt
  • ATC base stations in underserved geographic regions and where reception of the Globalstar satellite signal is largely impaired by path obstruction, particularly in urban areas. GLLC also proposes to deploy transportable ATC base stations in rural or underserved areas to meet the needs of customers requiring service on a short-term or emergency basis. GLLC promises that, as required by Section 25.254(a)(3), it will perform whatever frequency coordination may be necessary to avoid causing interference to other systems operating on assigned frequencies in the 2450-2500 MHz band before placing any ATC base station in service, and that its base stations will operate in compliance with all other pertinent requirements in the Commission's rules. Air Interface Protocol The Globalstar ATC system will use
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-08-892A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-08-892A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-08-892A1.txt
  • of an application to identify RO sites in this authorization merely records receive-site data that the licensee filed voluntarily, to facilitate coordination, without determining the accuracy of this data or the licensee's right to coordination or interference protection for these facilities. See e.g., 47 C.F.R. § 2.106, Federal Table for 2025-2110 MHz and US Note 346, and 47 C.F.R. §§ 25.254, 25.255, and 27.1133. Additionally, this grant does not modify the licensee's authorization to operate a TV Pickup Transmitter(s) under call sign____ and such grant date is irrelevant in determining whether the BAS operation is ``previously licensed'' for purposes of 47 C.F.R. § 27.1133 and similar interference-protection rules. RPU receive-only sites. In addition to TVPU operations, SBE also requested a similar
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-231851A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-231851A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-231851A1.txt
  • a resolution bandwidth of 1 MHz or equivalent and the video bandwidth is not less than the resolution bandwidth. The narrowband EIRP level is to be measured using an RMS detector function with a resolution bandwidth of 1 kHz or equivalent. The measurements are to be made over a 20 millisecond averaging period when the mobile terminal is transmitting. Sections 25.254(a)(2) and (4) are revised as follows: In Section 25.254(a)(2), the word "in" is inserted after the word "identified" and the word "emission" is corrected to read "emissions". In Section 25.254(a)(4), in the first sentence the text ``(discrete emissions of less than 700 Hz bandwidth)'' is added at the end of the first sentence. In the second sentence, the phrase ``After
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-281685A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-281685A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-281685A1.txt
  • to a pre-existing BRS Channel 1 base station, when the interference complaint cannot be mutually resolved, the new or modified station must take these measures within 24 hours of receipt of the documented interference complaint, and the pre-existing base station must take these measures within 60 days of making the complaint. In Appendix A, revise the text for rule section 25.254(a) by adding paragraph (5) to read as follows: § 25.254 Special requirements for ancillary terrestrial components operating in the 1610-1626.5 MHz/2483.5-2500 MHz bands. (a) * * * (5) For base stations, the power for any emissions above 2495 MHz shall be attenuated below the transmitter power (P) measured in watts in accordance with the standards below. (i) For base stations,
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-281905A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-281905A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-281905A1.txt
  • paragraph 36 to read as follows: ''When the interference is caused by a new or modified ATC station to a pre-existing BRS Channel 1 base station, when the interference complaint cannot be mutually resolved, the new or modified station must take these measures within 24 hours of receipt of the documented interference complaint.'' 2. This Second Erratum also corrects § 25.254 in Appendix A by deleting subparagraph (a)(5) and inserting paragraph (d) to read as follows: § 25.254 Special requirements for ancillary terrestrial components operating in the 1610-1626.5 MHz/2483.5-2500 MHz bands. * * * * * (d) To avoid interference to an adjacent channel licensee in the Broadband Radio Service (BRS), the power of any ATC base station emission above 2495
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A1.txt
  • MHz MSS band, because the use of the remainder of the band will not be decided by this Order and in order not to prejudice possible future action by the Commission, it is necessary that any ATC base stations installed in the 2492.5-2498.0 MHz band be tunable across the entire 2483.5-2500 MHz MSS allocation. To this end, we adopt section 25.254(a)(4) which requires that the applicant demonstrate that the base stations are, in fact, tunable across the entire 2483.5-2500 MHz MSS allocation. Protection of In-band Systems in the 1610-1626.5 MHz Band Globalstar demonstrates that at least two CDMA systems operating in the1.6/2.4 GHz bands would be able to coordinate use of the assigned frequencies so that both could provide ATC and
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A1_Erratum.doc
  • MHz MSS band, because the use of the remainder of the band will not be decided by this Order and in order not to prejudice possible future action by the Commission, it is necessary that any ATC base stations installed in the 2492.5-2498.0 MHz band be tunable across the entire 2483.5-2500 MHz MSS allocation. To this end, we adopt section 25.254(a)(4) which requires that the applicant demonstrate that the base stations are, in fact, tunable across the entire 2483.5-2500 MHz MSS allocation. Protection of In-band Systems in the 1610-1626.5 MHz Band Globalstar demonstrates that at least two CDMA systems operating in the1.6/2.4 GHz bands would be able to coordinate use of the assigned frequencies so that both could provide ATC and
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A3.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A3.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A3.txt
  • under this section must contain a statement confirming compliance with these requirements for both fundamental emissions and unwanted emissions. Technical information showing the basis for this statement must be submitted to the Commission upon request. (d) Applicants for an ancillary terrestrial component authority shall demonstrate compliance with the provisions of §§ 1.924 and 25.203(e)-(g) and with §§ 25.252, 25.253, or 25.254, as appropriate, through certification or explanatory technical exhibit. (e) Upon receipt of ATC authority, all ATC licensees must ensure continued compliance with this section and §§ 25.252, 25.253, or 25.254, as appropriate. Section 25.201 is amended by amending and adding the following definitions in alphabetical order to read as follows: § 25.201 Definitions. * * * * * Ancillary terrestrial
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A3_Erratum.doc
  • under this section must contain a statement confirming compliance with these requirements for both fundamental emissions and unwanted emissions. Technical information showing the basis for this statement must be submitted to the Commission upon request. (d) Applicants for an ancillary terrestrial component authority shall demonstrate compliance with the provisions of §§ 1.924 and 25.203(e)-(g) and with §§ 25.252, 25.253, or 25.254, as appropriate, through certification or explanatory technical exhibit. (e) Upon receipt of ATC authority, all ATC licensees must ensure continued compliance with this section and §§ 25.252, 25.253, or 25.254, as appropriate. Section 25.201 is amended by amending and adding the following definitions in alphabetical order to read as follows: § 25.201 Definitions. * * * * * Ancillary terrestrial
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-162A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-162A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-162A1.txt
  • statement confirming compliance with these requirements for both fundamental emissions and unwanted emissions. Technical information showing the basis for this statement must be submitted to the Commission upon request. (d) Applicants for an ancillary terrestrial component authority shall demonstrate that the applicant does or will comply with the provisions of §§ 1.924 and 25.203(e)-(g) and with §§ 25.252, 25.253, or 25.254, as appropriate, through certification or explanatory technical exhibit. (e) Except as provided for in paragraph (f) of this section, no application for an ancillary terrestrial component shall be granted until the applicant has demonstrated actual compliance with the provisions of subsection (b) of this section. Upon receipt of ATC authority, all ATC licensees must ensure continued compliance with this section
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-04-134A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-04-134A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-04-134A1.txt
  • 2492.5-2498 MHz bands. Id. See ATC Order, 18 FCC Rcd at 2209, App. C3, § 4.2.2. In that Order, the Commission stated that interference with unlicensed devices is a non-issue because ATC base stations are greater than 25 megahertz from these users. Id. at 2062-2063, ¶ 205. See id. at 2206-2207, App. C3, § 4.2.1; see also 47 C.F.R. § 25.254(a)(3). 47 C.F.R. § 25.255. ATC Order, 18 FCC Rcd at 2057, ¶ 192. See id. at 2058-2063, ¶¶ 196-206. NTIA Comments at 3, 4. Id. at 6. Lockheed Comments at 4. Iridium Reply Comments at 13. Globalstar Reply Comments at 32. Id. at 32. 47 U.S.C. § 316. Joint Comments at 31. Id. Id. Id. Id. at 31-33 (citing the
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-05-30A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-05-30A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-05-30A1.txt
  • calculated signal levels received by an MSS receiver exceeds -70 dBm. The MSS receiver used in these calculations can be assumed to have an antenna with 0 dBi gain. Free-space propagation between the base station antennas and the MSS terminals can be assumed and actual signal polarizations for the ATC signals and the MSS system may be used. 7. Section 25.254 is amended by revising paragraph (a)(4) and (b)(4) as follows: § 25.254 Special requirements for ancillary terrestrial components operating in the 1610-1626.5 MHz/2483.5-2500 MHz bands. (a) * * * o bandwidth shall be used to measure wideband EIRP density for purposes of this rule, and narrowband EIRP shall be measured with a root-mean-square detector function with a resolution bandwidth of
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-07-194A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-07-194A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-07-194A1.txt
  • the 2492.5-2498 MHz band. Because of this allocation change, we will move ATC operations down five megahertz to the 2487.5-2493 MHz band, which continues to allow at least two megahertz of MSS-only use between ATC operations and non-MSS services.'' 47 C.F.R. § 27.53(l)(2). 47 C.F.R. § 27.53(l)(2). 47 C.F.R. § 27.53(l). See 47 C.F.R. § 27.53(l)(2). See 47 C.F.R. § 25.254(a)(3). See SBE Petition for Reconsideration of the Big LEO Order on Reconsideration and AWS 5th MO&O, filed May 22, 2006. See 47 U.S.C. § 316. We made a similar Section 316 modification to Iridium's license when we decided that TDMA MSS operators could access the 1618.25-1621.35 MHz band. See Big LEO Order, 19 FCC Rcd at 13395, ¶ 88; Iridium
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-254A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-254A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-254A1.txt
  • WiMAX protocol would not produce any greater potential interference than that resulting from operations of air interfaces currently permitted by the rules. Specifically, the out-of-channel emission is approximately -55.23 dBW/30kHz for the base station and -65.23 dBW/30kHz for the mobile terminals for the 10 MHz carrier proposed by Globalstar. These levels are well below the limits set forth in Section 25.254 of the Commission's rules for the Big LEO bands. In addition, Globalstar has provided a compatibility analysis to demonstrate that it would be able to share with adjacent band services. Therefore, we grant Globalstar's request to operate TDD WiMAX in the band 2483.5 - 2495 MHz. We also waive Section 25.149(a)(1) of the Commission's rules to allow Globalstar to operate
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-98A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-98A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-98A1.txt
  • Big LEO bands, MSS ATC is limited to no more than 7.775 MHz of spectrum in the L-band and 11.5 MHz of spectrum in the S-band. Licensees in these bands may implement ATC only on those channels on which MSS is authorized, consistent with the Big LEO band-sharing arrangement. * * * * * 4. Add paragraph (d) to § 25.254 to read as follows: § 25.254 Special requirements for ancillary terrestrial components operating in the 1610-1626.5 MHz/2483.5-2500 MHz bands. * * * * * (d) To avoid interference to an adjacent channel licensee in the Broadband Radio Service (BRS), the power of any ATC base station emission above 2495 MHz shall be attenuated below the transmitter power (P) measured in
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-10-82A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-10-82A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-10-82A1.txt
  • 3. See WCS Coalition April 30, 2010 Ex Parte letter at 2, 5. Id. at 4. See WCS Coalition April 30, 2010 Ex Parte letter at 2, 5. However, in some limited instances, we have required inter-service coordination or other interference avoidance requirements to address possible interference scenarios between different services in adjacent spectrum. See, e.g., 47 C.F.R. §§ 25.213, 25.254, 27.1131, and 95.861. We note that the 45-km coordination distance proposed by NTIA would be the line of sight distance for an AMT receiver at a 30-meter height pointed at a WCS base station at a 30-meter height assuming a smooth earth with no terrain obstructions. See Recommendation ITU-R M.1459, "Protection criteria for telemetry systems in the aeronautical mobile service
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-10-82A1_Rcd.pdf
  • Therefore, although we are adopting the 45-km coordination distance and/or line of sight (whichever is greater) approach supported 455SeeWCS Coalition April 30, 2010 Ex Parteletter at 2, 5. 456However, in some limited instances, we have required inter-service coordination or other interference avoidance requirements to address possible interference scenarios between different services in adjacent spectrum. See, e.g., 47 C.F.R. §§ 25.213, 25.254, 27.1131, and 95.861. 11785 Federal Communications Commission FCC 10-82 by AMT interests,457we want to be clear that we are adopting this conservative coordination trigger only to allow thorough consideration of possible interference scenarios and it is in no way to be considered an exclusion zone around AMT facilities. 184. Although this coordination distance is conservative in that it does not
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-12-32A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-12-32A1.pdf http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-12-32A1.txt
  • base stations transmit in the MSS downlink bands in portions of the 1626.5-1660.5 MHz/1525-1559 MHz bands (L-band) and the 1610-1626.5 MHz/2483.5-2500 MHz bands (Big LEO band). ***** (d) Applicants for an ancillary terrestrial component authority shall demonstrate that the applicant does or will comply with the provisions of §1.924 of this chapter and 25.203(e) through 25.203(g) and with §25.253 or §25.254, as appropriate, through certification or explanatory technical exhibit. (e) Except as provided for in paragraph (f) of this section, no application for an ancillary terrestrial component shall be granted until the applicant has demonstrated actual compliance with the provisions of paragraph (b) of this section. Upon receipt of ATC authority, all ATC licensees must ensure continued compliance with this section
• http://wireless.fcc.gov/auctions/15/releases/fc970070.pdf http://wireless.fcc.gov/auctions/15/releases/fc970070.txt http://wireless.fcc.gov/auctions/15/releases/fc970070.wp
  • Service. 25.211 Video transmissions in the Domestic Fixed-Satellite Service. 25.212 Narrowband transmission in the Fixed-Satellite Service. 25.213 Inter-service coordination requirements for the 1.6/2.4 GHz Mobile-Satellite Service. 25.214 Technical requirements for space stations in the satellite digital audio radio service. 25.251 Special requirements for coordination. 25.252 Maximum permissible interference power. 25.253 Determination of coordination distance for near great circle propagation mechanisms. 25.254 Computation of coordination distance contours for propagation modes associated with precipitation scatter. 25.255 Guidelines for performing interference analyses for near great circle propagation mechanisms. 25.256 Guidelines for performing interference analyses for precipitation scatter modes. Subpart D - Technical Operations 25.271 Control of transmitting stations. 25.272 General inter-system coordination procedures. 25.273 Duties regarding space communications transmissions. 25.274 Procedures to be followed
• http://wireless.fcc.gov/uls/ebf/special_cond_code21.pdf http://wireless.fcc.gov/uls/ebf/special_cond_code21.txt
  • of an application to identify receive-only sites in this authorization merely records receive-site data that the licensee filed voluntarily, to facilitate coordination, without determining the accuracy of this data or the licensee's right to coordin|ation or interference protection for these facilities. See e.g., 47 C.F.R. § 2.106, Federal Table for 2025-2110 MHz and US Note 346, and 47 C.F.R. §§ 25.254, 25.255, and 27.1133.||||P Page 18
• http://www.fcc.gov/fcc-bin/audio/DA-08-892A1.doc http://www.fcc.gov/fcc-bin/audio/DA-08-892A1.pdf
  • of an application to identify RO sites in this authorization merely records receive-site data that the licensee filed voluntarily, to facilitate coordination, without determining the accuracy of this data or the licensee's right to coordination or interference protection for these facilities. See e.g., 47 C.F.R. § 2.106, Federal Table for 2025-2110 MHz and US Note 346, and 47 C.F.R. §§ 25.254, 25.255, and 27.1133. Additionally, this grant does not modify the licensee's authorization to operate a TV Pickup Transmitter(s) under call sign____ and such grant date is irrelevant in determining whether the BAS operation is ``previously licensed'' for purposes of 47 C.F.R. § 27.1133 and similar interference-protection rules. RPU receive-only sites. In addition to TVPU operations, SBE also requested a similar