Goto Section: 25.211 | 25.213 | Table of Contents
FCC 25.212
Revised as of October 2, 2015
Goto Year:2014 |
2016
§ 25.212 Narrowband analog transmissions and digital transmissions in the GSO
Fixed Satellite Service.
(a) Except as otherwise provided by this part, criteria for unacceptable
levels of interference caused by other satellite networks shall be
established on the basis of nominal operating conditions and with the
objective of minimizing orbital separations between satellites.
(b) Emissions with an occupied bandwidth of less than 2 MHz are not
protected from interference from wider bandwidth transmissions if the r.f.
carrier frequency of the narrowband signal is within ±1 MHz of one of the
frequencies specified in § 25.211(a).
(c)(1) An earth station that is not subject to licensing under § 25.134,
§ 25.222, § 25.226, or § 25.227 may be routinely licensed for analog
transmissions in the 14.0-14.5 GHz band with bandwidths up to 200 kHz (or up
to 1 MHz for command carriers at the band edge) if the equivalent diameter
of the transmitting antenna is 1.2 meters or greater, input power spectral
density into the antenna will not exceed −8 dBW/4 kHz, transmitted satellite
carrier EIRP density will not exceed 17 dBW/4 kHz, and the application
includes certification pursuant to § 25.132(a)(1) of conformance with the
antenna performance standards in § 25.209(a) and (b).
(2) An earth station that is not subject to licensing under § 25.134,
§ 25.222, § 25.226, or § 25.227 may be routinely licensed for digital
transmission, including digital video transmission, in the 14.0-14.5 GHz
band if the equivalent diameter of the transmitting antenna is 1.2 meters or
greater, input power spectral density into the antenna will not exceed −14
dBW/4 kHz, transmitted satellite carrier EIRP density will not exceed + 10.0
dBW/4 kHz, and the application includes certification pursuant to
§ 25.132(a)(1) of conformance with the antenna performance standards in
§ 25.209(a) and (b).
(d) An earth station that is not subject to licensing under § 25.134 or
§ 25.221 may be routinely licensed for digital transmission in the 5925-6425
MHz band or analog transmission in that band with carrier bandwidths up to
200 kHz (or up to 1 MHz for command carriers at the band edge) if the
equivalent diameter of the transmit antenna is 4.5 meters or greater, the
application includes certification pursuant to § 25.132(a)(1) of conformance
with the antenna performance standards in § 25.209(a) and (b), and maximum
power density into the antenna will not exceed + 0.5 dBW/4 kHz for analog
carriers or −2.7 − 10log(N) dBW/4 kHz for digital carriers. For digital
transmission with frequency division multiple access (FDMA) or time division
multiple access (TDMA), N is equal to one. For digital transmission with
code division multiple access (CDMA), N is the maximum number of
co-frequency simultaneously transmitting earth stations in the same
satellite receiving beam.
(e) An applicant for authority for an earth station in the Fixed-Satellite
Service proposing to transmit digital signals or analog signals in
bandwidths up to 200 kHz (or up to 1 MHz for command carriers at the band
edge) and to operate with transmitted satellite carrier EIRP densities,
and/or maximum antenna input power densities in excess of those specified in
applicable provisions of paragraph (c) or (d) of this section or operate
with a smaller antenna than specified in a relevant provision of those
paragraphs must comply with the requirements in § 25.218 or § 25.220, unless
the application is subject to licensing pursuant to § 25.221, § 25.222,
§ 25.226, or § 25.227.
(f) In the 24.75-25.25 GHz band, an earth station that meets the antenna
gain pattern requirements set forth in § 25.209(a) and (b) of this part may
be routinely licensed if the maximum power density into the antenna does not
exceed 3.5 dBW/MHz.
[ 58 FR 13421 , Mar. 11, 1993, as amended at 62 FR 5931 , Feb. 10, 1997; 62 FR 51378 , Oct. 1, 1997; 70 FR 32256 , June 2, 2005; 70 FR 33376 , June 8, 2005;
72 FR 50030 , Aug. 29, 2007; 73 FR 70902 , Nov. 24, 2008; 78 FR 8428 , Feb. 6,
2013; 79 FR 8323 , Feb. 12, 2014]
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Goto Section: 25.211 | 25.213
Goto Year: 2014 |
2016
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