FCC Web Documents citing 25.253

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

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  • environmental impact, and protection of radio-astronomy observation. No question has been raised pertaining to MSV's showing in these respects, which we find to be sufficient. C. Technical Requirements for ATC Operation The Commission adopted band-specific technical rules to ensure that ATC operation will not cause harmful interference. The technical requirements pertaining to L-Band ATC operation are set forth in Section 25.253 of the Commission's rules. The Commission derived the requirements in Section 25.253 from analysis of the potential for interference with operation of an ATC licensee's own MSS system and operation of other L-Band MSS systems, particularly Inmarsat's, and the potential for interference with radio-astronomy observation and satellite radionavigation in adjacent frequency bands. Link Margin for Structural Attenuation Section 25.253(a)(8) requires
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  • the Commission's Space Station Licensing Rules and Policies, 18 FCC Rcd 10760, 10799 ¶ 96, 10870 ¶¶ 295-96 (2003); Outerlink, Inc., 17 FCC Rcd 12757 (Int'l Bur. 2002); DIRECTV Enterprises, LLC, 21 FCC Rcd 8028, 8032 ¶ 7, 8040 ¶ 32 (Int'l Bur. 2006); and Telesat Canada, 17 FCC Rcd 25287 (Int'l Bur. 2002). 47 C.F.R. §§ 25.149(a)(2)(ii), 25.149(b)(5)(iii), and 25.253(a)(4). Narrative Attachment at 12, citing ATC Report and Order at ¶ 93. Final Corrected Comments of Inmarsat PLC, filed Oct. 19, 2009. October 15 SCT Letter at 1 (English translation at 2). Id. Attachment to October 30 SCT Letter, ``ATC Interference Tests on Solidaridad-2.'' October 15 SCT Letter at 1 (English translation at 2). October 15 SCT Letter at 2
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  • of the Commission's Space Station Licensing Rules and Policies, 18 FCC Rcd 10760, 10799 ¶ 96, 10870 ¶¶ 295-96 (2003); Outerlink, Inc., 17 FCC Rcd 12757 (Int'l Bur. 2002); DIRECTV Enterprises, LLC, 21 FCC Rcd 8028, 8032 ¶ 7, 8040 ¶ 32 (Int'l Bur. 2006); and Telesat Canada, 17 FCC Rcd 25287 (Int'l Bur. 2002). 1847 C.F.R.§§ 25.149(a)(2)(ii), 25.149(b)(5)(iii), and 25.253(a)(4). 19Narrative Attachment at 12, citing ATC Report and Orderat ¶ 93. 20Final Corrected Comments of Inmarsat PLC, filed Oct. 19, 2009. 21October 15 SCT Letter at 1 (English translation at 2). 22Id. 23Attachment to October 30 SCT Letter, "ATC Interference Tests on Solidaridad-2." 24October 15 SCT Letter at 1 (English translation at 2). 2025 Federal Communications Commission DA 10-356 from
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  • setting technical constraints on L-Band ATC operation. SkyTerra points out that when the Commission adopted technical rules for ATC operation it expressly encouraged operators of L-Band MSS satellites to negotiate less-restrictive operational limits with each other and request waivers based on such agreements. Further, SkyTerra notes that a policy of deference to such coordination agreements is explicitly included in Section 25.253(a)(2) and (a)(3) of the Commission's rules, which provide that any future coordination agreement involving an L-Band ATC applicant and ``another MSS operator'' will supersede the default limits on uplink interference prescribed in those rule provisions. SkyTerra observes that a similar policy of deference to coordination agreements between satellite operators applies where other types of service are concerned. For instance, SkyTerra
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-10-534A1_Rcd.pdf
  • We will first relate the substance of these opposed waiver requests22then summarize and address the parties' arguments. 1. Waiver Requests 10. Base Station PSD Limits. The ATC rules specify limits on the power used for ATC base- station transmissions.23 SkyTerra's license also includes similar conditions.24 SkyTerra seeks 17ATC Report and Order at ¶¶ 132-169 and ¶¶ 185-188; 47 C.F.R. § 25.253. 18ATC Reconsideration Order at ¶ 47. Cf. ATC Report and Order at ¶ 143 ("While we adopt rules to prevent harmful interference, we do not intend to prohibit L-band MSS operators from agreeing to less restrictive limitations on MSS ATC. We support and encourage private negotiations among interested parties in the [L-Band] and will consider waiver requests of these rules
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  • Rcd at 2036, ¶ 143 (``While we adopt rules to prevent harmful interference, we do not intend to prohibit L-band MSS operators from agreeing to less restrictive limitations on MSS ATC. We support and encourage private negotiations among interested parties in the [L-Band] and will consider waiver requests of these rules based on negotiated agreements.''); see also 47 C.F.R. § 25.253(a)(2) and (3), 47 C.F.R. § 25.253(c)(3). LightSquared ATC Modification Request, Narrative at 4. LightSquared ATC Modification Request, Narrative at 5. See id. See Open Range Comments at 4; Rural Cellular Association Comments at 4-5. LightSquared ATC Modification Request, Narrative at 5-6. SkyTerra/Harbinger Order, 25 FCC Rcd at 3085, 3088-89, 3098, ¶¶ 56, 72, App. B (Harbinger Business Plan Letter of
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  • FCC Rcd at 2036, ¶ 143 ("While we adopt rules to prevent harmful interference, we do not intend to prohibit L-band MSS operators from agreeing to less restrictive limitations on MSS ATC. We support and encourage private negotiations among interested parties in the [L-Band] and will consider waiver requests of these rules based on negotiated agreements."); see also47 C.F.R. § 25.253(a)(2) and (3), 47 C.F.R. § 25.253(c)(3). 581 Federal Communications Commission DA 11-133 waiver, the substantial public benefit of rationalizing MSS L-band spectrum might not be realized any time soon. 32.Grant of the waiver enhances LightSquared's ability to rationalize the MSS L-band spectrum through private arrangements, thus supporting deployment of broadband satellite and satellite/terrestrial services in the band. As such, a
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  • 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 25.253(d)(4), (d)(6), (d)(7), and (e) are revised as follows: In Section 25.253(d)(4), the word ``of'' is added after the word ``edge''. In Section 25.253(d)(6), the word ``antenna'' is added after the word ``peak''. In Section 25.253(d)(7), 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
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  • replacements for those existing satellites. The proposed ATC base stations and mobile terminals would transmit in portions of the 1525-1559 MHz and 1626.5-1660.5 MHz bands that have been internationally coordinated for the MSV and MSV Canada MSS systems. MSV requests waivers of the following provisions of the Commission's rules pertaining to ATC operation: 47 CFR § 25.149(b)(2)(ii) 47 CFR § 25.253(a)(2) 47 CFR § 25.253(c) 47 CFR § 25.253(d)(1)-(5) 47 CFR § 25.253(e). MSV also requests a ruling that its proposed ATC system will not be subject to the peak traffic limit specified in Paragraph 188 of the ATC Report and Order. Other matters of record MSV presented a supplemental written showing in a meeting with staff from the FCC's International
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  • modification of its authority for operation of Ancillary Terrestrial Component (ATC) stations in the United States using L-band spectrum coordinated for MSS operation via the MSV-1 satellite (Call Sign S2358). SkyTerra proposes technical changes to reflect a multilateral coordination agreement with SkyTerra (Canada) Inc. and Inmarsat Global Limited and requests waiver of the following provisions of the Commission's rules: Section 25.253(b) (base station out-of-channel emission limit), Section 25.253(d)(1)-(4) (base station EIRP limits), Section 25.253(d)(5) (limits on base station PFD near airport runways and stand areas), Section 25.253(d)(6)-(7) (limits on base station PFD at the edges of navigable waterways), Section 25.253(d)(8) (limit on base station antenna gain), Section 25.253(e) (base station polarization and overhead gain suppression), Section 25.253(f)(1) (requirement pertaining to coordination
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  • of Ancillary Terrestrial Component (ATC) stations in the United States using L-band spectrum coordinated for MSS operation via the AMSC-1 satellite, the MSV-1 replacement satellite, and the Canadian-licensed MSAT-1 satellite. SkyTerra proposes technical changes to reflect a multilateral coordination agreement with SkyTerra (Canada) Inc. and Inmarsat Global Limited and requests waiver of the following provisions of the Commission's rules: Section 25.253(b) (base station out-of-channel emission limit), Section 25.253(d)(1)-(4) (base station EIRP limits), Section 25.253(d)(5) (limits on base station PFD near airport runways and stand areas), Section 25.253(d)(6)-(7) (limits on base station PFD at the edges of navigable waterways), Section 25.253(d)(8) (limit on base station antenna gain), Section 25.253(e) (base station polarization and overhead gain suppression), Section 25.253(f)(1) (requirement pertaining to coordination
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  • problematic. We do not anticipate that many ATC base stations will be deployed outside of urban areas and the probability of unacceptable interference to METs outside of urban areas will be low. Although there may be a few instances where an Inmarsat MET receiver will be overloaded by a nearby ATC base station, we provide further protection by adopting section 25.253(c)(2), which limits ATC base stations to a maximum EIRP level of 14.1 dBW toward the horizon to protect other MSS system METs from overload interference. Though in these cases, occasional, limited periods of saturation of Inmarsat's terminals operating in these areas could occur, we expect this to occur rarely. This possibility must be considered in light of the already limited
• http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-03-15A1_Erratum.doc
  • problematic. We do not anticipate that many ATC base stations will be deployed outside of urban areas and the probability of unacceptable interference to METs outside of urban areas will be low. Although there may be a few instances where an Inmarsat MET receiver will be overloaded by a nearby ATC base station, we provide further protection by adopting section 25.253(c)(2), which limits ATC base stations to a maximum EIRP level of 14.1 dBW toward the horizon to protect other MSS system METs from overload interference. Though in these cases, occasional, limited periods of saturation of Inmarsat's terminals operating in these areas could occur, we expect this to occur rarely. This possibility must be considered in light of the already limited
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  • devices operating 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. * * * * *
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  • devices operating 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. * * * * *
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  • 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 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
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  • located within 27 km of a SARSAT and within radio horizon of the SARSAT station [sic].'' No other party addresses this issue. We find this request to be without substance because MSV's proposed language has the same effect as the language currently in the rules. Non-Forward Band Operation We grant a request from MSV to clarify a note to section 25.253 that modifies the rule in section 25.149(a)(1) requiring operation in the forward-band mode. The note to section 25. 253 states that our L-band technical rules are based on GSM/TDMA 800 or GSM 1800 system architecture, and that an L-band MSS/ATC operator may implement an alternate system architecture upon demonstrating that the alternate system architecture would produce no greater potential interference
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  • the MSS spectrum are governed by the ATC rules and authorizations. As noted above, the secondary market policies and rules do not alter the underlying service rules and policies that apply to the licensee and, in turn, the spectrum lessee. We note that the existing MSS ATC service rules for the 2 GHz Band (47 C.F.R. 25.252), L-Band (47 C.F.R. 25.253), and Big LEO Band (47 C.F.R. §25.524) require coordination with radio astronomy stations (see also 47 C.F.R. § 25.213); accommodate Global Maritime Distress and Safety System and Aeronautical Mobile-Satellite (Route) Service emergency communications; protect the Search and Rescue Satellite-Aided Tracking Earth stations, and restrict on out-of-band emissions in the radionavigation satellite service band used by Global Positioning System. The Commission
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  • "Protection criteria for telemetry systems in the aeronautical mobile service and mitigation techniques to facilitate sharing with geostationary broadcasting-satellite and mobile-satellite services in the frequency bands 1 452 1 525 and 2 310 2 360 MHz." This Recommendation provides the framework for conducting sharing studies between the mobile aeronautical test service and the mobile satellite service. See 47 C.F.R § 25.253(f)(2), Mobile Satellite Service Ancillary Terrestrial Component base stations. See AFTRCC Ex Parte filing (filed May 13, 2010). See ``Federal Communications Commission Requests Comment on Revision of Performance Requirements for 2.3 GHz Wireless Communications Service,'' WT Docket No. 07-293, Public Notice, FCC 10-46 (rel. March 29, 2010) (WCS Performance Public Notice). A summary of the Public Notice was published in the
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  • M.1459, "Protection criteria for telemetry systems in the aeronautical mobile service and mitigation techniques to facilitate sharing with geostationary broadcasting-satellite and mobile-satellite services in the frequency bands 1 452 1 525 and 2 310 2 360 MHz." This Recommendation provides the framework for conducting sharing studies between the mobile aeronautical test service and the mobile satellite service. 459See47 C.F.R § 25.253(f)(2), Mobile Satellite Service Ancillary Terrestrial Component base stations. 11786 Federal Communications Commission FCC 10-82 establish specific deadlines for remedying the interference. We also expect the coordinating parties to share accurate and relevant information ina timely and efficient manner. This applies equally to the AFTRCC on behalf of the AMT community, NASA, and the WCS licensees. This coordination also must address
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  • the ATC 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
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  • performance standards. 25.210 Technical requirements for space stations in the Fixed-Satellite 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.