Allocations

 
U.S. Non-Federal-Government Allocations
2025 - 2110 MHz
FIXED NG118
MOBILE 5.391


U.S. Federal Government Allocations
2025 - 2110 MHz
SPACE OPERATION (Earth-to-space)(space-to-space)
EARTH EXPLORATION-SATELLITE (Earth-to-space)(space-to-space)
SPACE RESEARCH (Earth-to-space)(space-to-space)
FIXED
MOBILE 5.391


ITU Region 1 Allocations
2025 - 2110 MHz
SPACE OPERATION (Earth-to-space)(space-to-space)
EARTH EXPLORATION-SATELLITE (Earth-to-space)(space-to-space)
FIXED
MOBILE 5.391
SPACE RESEARCH (Earth-to-space)(space-to-space)


ITU Region 2 Allocations
2025 - 2110 MHz
SPACE OPERATION (Earth-to-space)(space-to-space)
EARTH EXPLORATION-SATELLITE (Earth-to-space)(space-to-space)
FIXED
MOBILE 5.391
SPACE RESEARCH (Earth-to-space)(space-to-space)


ITU Region 3 Allocations
2025 - 2110 MHz
SPACE OPERATION (Earth-to-space)(space-to-space)
EARTH EXPLORATION-SATELLITE (Earth-to-space)(space-to-space)
FIXED
MOBILE 5.391
SPACE RESEARCH (Earth-to-space)(space-to-space)


SpectrumWiki


Footnotes


5.391 In making assignments to the mobile service in the bands 2025-2110 MHz and 2200-2290 MHz, administrations shall not introduce high-density mobile systems, as described in Recommendation ITU-R SA.1154, and shall take that Recommendation into account for the introduction of any other type of mobile system.

5.392 Administrations are urged to take all practicable measures to ensure that space-to-space transmissions between two or more non-geostationary satellites, in the space research, space operations and Earth exploration-satellite services in the bands 2025-2110 MHz and 2200-2290 MHz, shall not impose any constraints on Earth-to-space, space-to-Earth and other space-to-space transmissions of those services and in those bands between geostationary and non-geostationary satellites.

US222 In the band 2025-2035 MHz, geostationary operational environmental satellite (GOES) earth stations in the space research and Earth exploration-satellite services may be authorized on a coequal basis for Earth-to-space transmissions for tracking, telemetry, and telecommand at Honolulu, HI (21° 21' 12" N, 157° 52' 36" W); Seattle, WA (47° 34' 15" N, 122° 33' 10" W); and Wallops Island, VA (37° 56' 44" N, 75° 27' 42" W).

US346 Except as provided for below and by US222, Federal use of the band 2025-2110 MHz by the space operation service (Earth-to-space), Earth exploration-satellite service (Earth-to-space), and space research service (Earth-to-space) shall not constrain the deployment of the Television Broadcast Auxiliary Service, the Cable Television Relay Service, or the Local Television Transmission Service. To facilitate compatible operations between non-Federal terrestrial receiving stations at fixed sites and Federal earth station transmitters, coordination is required. To facilitate compatible operations between non-Federal

terrestrial transmitting stations and Federal spacecraft receivers, the terrestrial transmitters in the band 2025-2110 MHz shall not be high-density systems (see Recommendations ITU-R SA.1154 and ITU-R F.1247). Military satellite control stations at the following sites shall operate on a co-equal, primary basis with non-Federal operations:

Facility

Coordinates

Naval Satellite Control Network, Prospect Harbor, ME

44° 24' 16" N

068° 00' 46" W

New Hampshire Tracking Station, New Boston AFS, NH

42° 56' 52" N

071° 37' 36" W

Eastern Vehicle Check-out Facility & GPS Ground Antenna & Monitoring Station, Cape Canaveral, FL

28° 29' 09" N

080° 34' 33" W

Buckley AFB, CO

39° 42' 55" N

104° 46' 36" W

Colorado Tracking Station, Schriever AFB, CO

38° 48' 21" N

104° 31' 43" W

Kirtland AFB, NM

34° 59' 46" N

106° 30' 28" W

Camp Parks Communications Annex, Pleasanton, CA

37° 43' 51" N

121° 52' 50" W

Naval Satellite Control Network, Laguna Peak, CA

34° 06' 31" N

119° 03' 53" W

Vandenberg Tracking Station, Vandenberg AFB, CA

34° 49' 21" N

120° 30' 07" W

Hawaii Tracking Station, Kaena Pt, Oahu, HI

21° 33' 44" N

158° 14' 31" W

Guam Tracking Stations, Anderson AFB, and Naval CTS, Guam

13° 36' 54" N

144° 51' 18" E



US347 In the band 2025-2110 MHz, non-Federal Earth-to-space and space-to-space transmissions may be authorized in the space research and Earth exploration-satellite services subject to such conditions as may be applied on a case-by-case basis. Such transmissions shall not cause harmful interference to Federal and non-Federal stations operating in accordance with the Table of Frequency Allocations.

US90 In the band 2025-2110 MHz, the power flux-density at the Earth's surface produced by emissions from a space station in the space operation, Earth exploration-satellite, or space research service that is transmitting in the space-to-space direction, for all conditions and all methods of modulation, shall not exceed the following values in any 4 kHz sub-band:

(a) -154 dBW/m2 for angles of arrival above the horizontal plane (δ) of 0° to 5°,

(b) -154 + 0.5(δ-5) dBW/m2 for δ of 5° to 25°, and

(c) -144 dBW/m2 for δ of 25° to 90°.

US92 In the band 2025-2110 MHz, Federal use of the co-primary fixed and mobile services is restricted to the military services and the following provisions apply:

(a) Federal use shall not cause harmful interference to, nor constrain the deployment and use of the band by, the Television Broadcast Auxiliary Service, the Cable Television Relay Service, or the Local Television Transmission Service. To facilitate compatible operations, coordination is required in accordance with a Memorandum of Understanding between Federal and non-Federal fixed and mobile operations. Non-Federal licensees shall make all reasonable efforts to accommodate military mobile and fixed operations; however, the use of the band 2025-2110 MHz by the non-Federal fixed and mobile services has priority over military fixed and mobile operations.

(b) Military stations should, to the extent practicable, employ frequency agile technologies and techniques, including the capability to tune to other frequencies and the use of a modular retrofit capability, to facilitate sharing of this band with incumbent Federal and non-Federal operations.

NG118 In the bands 2025-2110 MHz, 6875-7125 MHz, and 12.7-13.25 GHz, television translator relay stations may be authorized to use frequencies on a secondary basis to other stations in the Television Broadcast Auxiliary Service that are operating in accordance with the Table of Frequency Allocations.


SpectrumWiki

 
Advanced Wireless Services (AWS-1) Band
European Union 3G & 4G (LTE) Band
NASA Deep Space Network (DSN)
NASA Tracking and Data Relay Satellite System (TDRSS)
Standard LTE Bands
GeoEye Imaging Satellites
Skybox-1 and Skybox-2 Earth Exploration-Satellite Service satellites
Pioneer 10 & 11 Spacecraft
Skybox high-resolution imaging satellites
High Altitude Platform Station (HAPS)


Related Documents, Links, and Multimedia:
Occupancy Measurements (10)
Band Plan (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 2025 MHz 2067.5 MHz 2110 MHz
Wavelength 14.8 cm 14.5 cm 14.2 cm
Band designator(s) UHF; S-band (IEEE) UHF; S-band (IEEE) UHF; S-band (IEEE)
Isotropic collecting area 17.4 cm2 16.7 cm2 16.1 cm2
Free space loss (1 m) 38.6 dB 38.8 dB 38.9 dB
Free space loss (1 km) 98.6 dB 98.8 dB 98.9 dB
Free space loss (10 km) 118.6 dB 118.8 dB 118.9 dB
Free space loss (100 km) 138.6 dB 138.8 dB 138.9 dB
Free space loss (1000 km) 158.6 dB 158.8 dB 158.9 dB
Free space loss
(35,786 km = GEO orbit)
189.7 dB 189.8 dB 190.0 dB
Free space loss (378,370 km = Moon) 210.1 dB 210.3 dB 210.5 dB