Goto Section: 25.211 | 25.213 | Table of Contents
FCC 25.212
Revised as of October 1, 2014
Goto Year:2013 |
2015
§ 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: 2013 |
2015
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