Goto Section: 25.201 | 25.203 | Table of Contents
FCC 25.202
Revised as of October 1, 2008
Goto Year:2007 |
2009
Sec. 25.202 Frequencies, frequency tolerance and emission limitations.
(a)(1) Frequency band. The following frequencies are available for use by
the fixed-satellite service. Precise frequencies and bandwidths of emission
shall be assigned on a case-by-case basis. The Table follows:
Space-to-earth
(GHz) Earth-to-space
(GHz)
3.65–3.7^17 ^12^195.091–5.25
3.7–4.2^1 ^15.925–6.425
6.7–7.025^12 ^1^12^1412.75–13.25
10.7–10.95^1 12 ^4^1213.75–14
10.95–11.2^1 2 12 ^514–14.2
11.2–11.45^1 12 14.2–14.5
11.45–11.7^1 2 12 ^12^2015.43–15.63
11.7–12.2^3 ^917.3–17.8
12.2–12.7^13 ^1824.75–25.05
18.3–18.58^1 10 ^1^1825.05–25.25
18.58–18.8^6^10^11 ^127.5–29.5
18.8–19.3^7 10 29.5–30
19.3–19.7^8 10 ^147.2–50.2
19.7–20.2^10
37.5–40^15 16
40–42^16
^1This band is shared coequally with terrestrial radiocommunication
services.
^2Use of this band by geostationary satellite orbit satellite systems in the
fixed-satellite service is limited to international systems; i.e. , other
than domestic systems.
^3Fixed-satellite transponders may be used additionally for transmissions in
the broadcasting-satellite service.
^4This band is shared on an equal basis with the Government radiolocation
service and grandfathered space stations in the Tracking and Data Relay
Satellite System.
^5In this band, stations in the radionavigation service shall operate on a
secondary basis to the fixed-satellite service.
^6The band 18.58–18.8 GHz is shared coequally with existing terrestrial
radiocommunication systems until June 8, 2010.
^7The band 18.8–19.3 GHz is shared coequally with terrestrial
radiocommunication services, until June 8, 2010. After this date, the
sub-band 19.26–19.3 GHz is shared coequally with existing terrestrial
radiocommunication systems.
^8The use of the band 19.3–19.7 GHz by the fixed-satellite service
(space-to-Earth) is limited to feeder links for the mobile-satellite
service.
^9The use of the band 17.3–17.8 GHz by the fixed-satellite service
(Earth-to-space) is limited to feeder links for broadcasting-satellite
service, and the sub-band 17.7–17.8 GHz is shared coequally with terrestrial
fixed services.
^10This band is shared coequally with the Federal Government fixed-satellite
service.
^11The band 18.6–18.8 GHz is shared coequally with the non-Federal
Government and Federal Government Earth exploration-satellite (passive) and
space research (passive) services.
^12Use of this band by nongeostationary satellite orbit systems in the
fixed-satellite service is limited to gateway earth station operations.
^13Use of this band by the fixed-satellite service is limited to
nongeostationary satellite orbit systems.
^14Use of this band by NGSO FSS gateway earth station uplink operations is
subject to the provisions of Sec. 2.106 NG53.
^15Use of this band by the fixed-satellite service is limited to “gateway”
earth station operations, provided the licensee under this Part obtains a
license under Part 101 of this Chapter or an agreement from a Part 101
licensee for the area in which an earth station is to be located. Satellite
earth station facilities in this band may not be ubiquitously deployed and
may not be used to serve individual consumers.
^16The band 37.5–40.0 GHz is designated as being available for use by the
fixed and mobile services and the band 40.0–42.0 GHz is designated as being
available for use by the fixed-satellite service.
^17FSS earth stations in this band must operate on a secondary basis to
terrestrial radiocommunication services, except that the band is shared
coequally between certain grandfathered earth stations and the terrestrial
radiocommunication services.
^18Use of the band 24.75–25.25 GHz by the fixed-satellite service
(Earth-to-space) is limited to feeder links for space stations in the
broadcasting-satellite service, and the sub-band 25.05–25.25 GHz is shared
coequally with terrestrial fixed services.
^19See 47 CFR 2.106, footnotes 5.444A and US344, for conditions that apply
to this band.
^20See 47 CFR 2.106, footnotes 5.511C and US359, for conditions that apply
to this band.
(2) [Reserved]
(3) The following frequencies are available for use by the non-voice,
non-geostationary mobile-satellite service:
137–138 MHz: Space-to-Earth
148–150.05 MHz: Earth-to-space
399.9–400.05 MHz: Earth-to-space
400.15–401 MHz: Space-to-Earth
(4)(i) The following frequencies are available for use by the 1.6/2.4 GHz
Mobile-Satellite Service:
1610–1626.5 MHz: User-to-Satellite Link
1613.8–1626.5 MHz: Satellite-to-User Link (secondary)
2483.5–2500 MHz: Satellite-to-User Link
(ii) The following frequencies are available for use by the 2 GHz
Mobile-Satellite Service: 2000–2020 MHz: User-to-Satellite Link; 2180–2200
MHz: Satellite-to-User Link.
(iii)(A) The following frequencies are available for use by the L-band
Mobile-Satellite Service:
1525–1559 MHz: Space-to-Earth
1626.5–1660.5 MHz: Earth-to-space
(B) The use of the frequencies 1544–1545 MHz and 1645.5–1646.5 MHz is
limited to distress and safety communications.
(5) The following frequencies are available for use by the inter-satellite
service:
22.55–23.00 GHz
23.00–23.55 GHz
24.45–24.65 GHz
24.65–24.75 GHz
(6) The following spectrum is available for exclusive use by the satellite
digital audio radio service:
2320–2345 MHz: space-to-Earth (primary).
(7) The following frequencies are available for use by the Direct Broadcast
Satellite service:
12.2–12.7 GHz: Space-to-Earth.
(8) The following frequencies are available for use by ESVs:
3700–4200 MHz (space-to-Earth)
5925–6425 MHz (Earth-to-space)
10.95–11.2 GHz (space-to-Earth)
11.45–11.7 GHz (space-to-Earth)
11.7–12.2 GHz (space-to-Earth)
14.0–14.5 GHz (Earth-to-space)
ESVs shall be authorized and coordinated as set forth in Sec. Sec. 25.221 and
25.222. ESV operators, collectively, may coordinate up to 180 megahertz of
spectrum in the 5925–6425 MHz (Earth-to-space) band for all ESV operations
at any given location subject to coordination.
(9) The following frequencies are available for use by the
Broadcasting-Satellite Service after 1 April 2007:
17.3–17.7 GHz (space-to-Earth)
17.7–17.8 GHz (space-to-Earth)
Note 1 to Paragraph (a)(9): Use of the 17.3–17.7 GHz band by the
broadcasting-satellite service is limited to geostationary satellite orbit
systems.
Note 2 to Paragraph (a)(9): Use of the 17.7–17.8 GHz band (space-to-Earth)
by the broadcasting-satellite service is limited to transmissions from
geostationary satellite orbit systems to receiving earth stations located
outside of the United States and its Possessions. In the United States and
its Possessions, the 17.7–17.8 GHz band is allocated on a primary basis to
the Fixed Service.
(b) Other frequencies and associated bandwidths of emission may be assigned
on a case-by-case basis to space systems under this part in conformance with
Sec. 2.106 of this chapter and the Commission's rules and policies.
(c) Orbital locations assigned to space stations licensed under this part by
the commission are subject to change by summary order of the Commission on
30 days notice. An authorization to construct and/or to launch a space
station becomes null and void if the construction is not begun or is not
completed, or if the space station is not launched and positioned at its
assigned orbital location and operations commenced in accordance with the
station authorization, by the respective date(s) specified in the
authorization. Frequencies and orbital location assignments are subject to
the policies set forth in the Report and Order, FCC 83–184, adopted April
27, 1983 in CC Docket No. 81–704 and the Report and Order, adopted July 25,
1985 in CC Docket No. 84–1299 as modified by the Report and Order, adopted
January 19, 1996 in IB Docket No. 95–41.
(d) Frequency tolerance, Earth stations. The carrier frequency of each earth
station transmitter authorized in these services shall be maintained within
0.001 percent of the reference frequency.
(e) Frequency tolerance, space stations. The carrier frequency of each space
station transmitter authorized in these services shall be maintained within
0.002 percent of the reference frequency.
(f) Emission limitations. The mean power of emissions shall be attenuated
below the mean output power of the transmitter in accordance with the
following schedule:
(1) In any 4 kHz band, the center frequency of which is removed from the
assigned frequency by more than 50 percent up to and including 100 percent
of the authorized bandwidth: 25 dB;
(2) In any 4 kHz band, the center frequency of which is removed from the
assigned frequency by more than 100 percent up to and including 250 percent
of the authorized bandwidth: 35 dB;
(3) In any 4 kHz band, the center frequency of which is removed from the
assigned frequency by more than 250 percent of the authorized bandwidth: An
amount equal to 43 dB plus 10 times the logarithm (to the base 10) of the
transmitter power in watts;
(4) In any event, when an emission outside of the authorized bandwidth
causes harmful interference, the Commission may, at its discretion, require
greater attenuation than specified in paragraphs (f) (1), (2) and (3) of
this section.
(g) Telemetry, tracking and telecommand functions for U.S. domestic
satellites shall be conducted at either or both edges of the allocated
band(s). Frequencies, polarization and coding shall be selected to minimize
interference into other satellite networks and within their own satellite
system.
[ 30 FR 7176 , May 28, 1965, as amended at 36 FR 2562 , Feb. 6, 1971; 38 FR 8573 , Apr. 4, 1973; 39 FR 33527 , Sept. 18, 1974; 48 FR 40254 , Sept. 6, 1983;
50 FR 36079 , Sept. 5, 1985; 51 FR 18445 , May 20, 1986; 51 FR 20975 , June 10,
1986; 54 FR 49993 , Dec. 4, 1989; 56 FR 24024 , May 28, 1991; 58 FR 13419 ,
Mar. 11, 1993; 58 FR 68061 , Dec. 23, 1993; 59 FR 53329 , Oct. 21, 1994; 61 FR 9952 , Mar. 12, 1996; 61 FR 52307 , Oct. 7, 1996; 62 FR 11105 , Mar. 11, 1997;
64 FR 2591 , Jan. 15, 1999; 64 FR 6565 , Feb. 10. 1999; 65 FR 54171 , Sept. 7,
2000; 65 FR 59144 , Oct. 4, 2000; 66 FR 10622 , Feb. 16, 2001; 66 FR 63515 ,
Dec. 7, 2001; 67 FR 17299 , Apr. 10, 2002; 67 FR 39862 , June 11, 2002; 67 FR 51114 , Aug. 7, 2002; 68 FR 11993 , Mar. 13, 2003; 68 FR 16966 , Apr. 8, 2003;
68 FR 34338 , June 9, 2003; 68 FR 74387 , Dec. 23, 2003; 69 FR 52206 , Aug. 25,
2004; 70 FR 4783 , Jan. 31, 2005; 70 FR 24725 , May 11, 2005; 70 FR 32255 ,
June 2, 2005; 72 FR 50028 , Aug. 29, 2007; 73 FR 25495 , May 6, 2008]
Goto Section: 25.201 | 25.203
Goto Year: 2007 |
2009
CiteFind - See documents on FCC website that
cite this rule
Want to support this service?
Thanks!
Report errors in
this rule. Since these rules are converted to HTML by machine, it's possible errors have been made. Please
help us improve these rules by clicking the Report FCC Rule Errors link to report an error.
hallikainen.com
Helping make public information public