Allocations

 
U.S. Non-Federal-Government Allocations
5255 - 5350 MHz
AERONAUTICAL RADIONAVIGATION 5.449
Earth exploration-satellite (active) 5.448B
Radiolocation
Space research (active)


U.S. Federal Government Allocations
5255 - 5350 MHz
EARTH EXPLORATION-SATELLITE (active) 5.448B
RADIOLOCATION 5.448B
AERONAUTICAL RADIONAVIGATION 5.449
SPACE RESEARCH (active)


ITU Region 1 Allocations
5255 - 5350 MHz
EARTH EXPLORATION-SATELLITE (active) 5.448B
RADIOLOCATION 5.448D
AERONAUTICAL RADIONAVIGATION 5.449
SPACE RESEARCH (active) 5.448C


ITU Region 2 Allocations
5255 - 5350 MHz
EARTH EXPLORATION-SATELLITE (active) 5.448B
RADIOLOCATION 5.448D
AERONAUTICAL RADIONAVIGATION 5.449
SPACE RESEARCH (active) 5.448C


ITU Region 3 Allocations
5255 - 5350 MHz
EARTH EXPLORATION-SATELLITE (active) 5.448B
RADIOLOCATION 5.448D
AERONAUTICAL RADIONAVIGATION 5.449
SPACE RESEARCH (active) 5.448C


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Footnotes


5.447E   Additional allocation: The frequency band 5 250-5 350 MHz is also allocated to the fixed service on a primary basis in the following countries in Region 3: Australia, Korea (Rep. of), India, Indonesia, Iran (Islamic Republic of), Japan, Malaysia, Papua New Guinea, the Philippines, Dem. People’s Rep. of Korea, Sri Lanka, Thailand and Viet Nam. The use of this frequency band by the fixed service is intended for the implementation of fixed wireless access systems and shall comply with Recommendation ITU R F.1613 0. In addition, the fixed service shall not claim protection from the radiodetermination, Earth exploration-satellite (active) and space research (active) services, but the provisions of No. 5.43A do not apply to the fixed service with respect to the Earth exploration-satellite (active) and space research (active) services. After implementation of fixed wireless access systems in the fixed service with protection for the existing radiodetermination systems, no more stringent constraints should be imposed on the fixed wireless access systems by future radiodetermination implementations. (WRC 15)



5.448A   The Earth exploration-satellite (active) and space research (active) services in the frequency band 5 250 5 350 MHz shall not claim protection from the radiolocation service. No. 5.43A does not apply. (WRC-03)



5.448A The Earth exploration-satellite (active) and space research (active) services in the frequency band 5250-5350 MHz shall not claim protection from the radiolocation service. No. 5.43A does not apply.

5.448B   The Earth exploration-satellite service (active) operating in the band 5 350-5 570 MHz and space research service (active) operating in the band 5 460-5 570 MHz shall not cause harmful interference to the aeronautical radionavigation service in the band 5 350-5 460 MHz, the radionavigation service in the band 5 460-5 470 MHz and the maritime radionavigation service in the band 5 470-5 570 MHz. (WRC-03)



5.448C   The space research service (active) operating in the band 5 350-5 460 MHz shall not cause harmful interference to nor claim protection from other services to which this band is allocated. (WRC-03)



5.448D   In the frequency band 5 350-5 470 MHz, stations in the radiolocation service shall not cause harmful interference to, nor claim protection from, radar systems in the aeronautical radionavigation service operating in accordance with No. 5.449. (WRC-03)



5.449   The use of the band 5 350-5 470 MHz by the aeronautical radionavigation service is limited to airborne radars and associated airborne beacons.



G56   Federal radiolocation in the bands 1215-1300, 2900-3100, 5350-5650 and 9300-9500 MHz is primarily for the military services; however, limited secondary use is permitted by other Federal agencies in support of experimentation and research programs. In addition, limited secondary use is permitted for survey operations in the band 2900-3100 MHz.

SpectrumWiki

 
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Related Documents, Links, and Multimedia:
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White Paper (1)
Legislation (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 5.255 GHz 5.3025 GHz 5.35 GHz
Wavelength 5.7 cm 5.7 cm 5.6 cm
Band designator(s) SHF; C-band (IEEE) SHF; C-band (IEEE) SHF; C-band (IEEE)
Isotropic collecting area 2.6 cm2 2.5 cm2 2.5 cm2
Free space loss (1 m) 46.9 dB 46.9 dB 47.0 dB
Free space loss (1 km) 106.9 dB 106.9 dB 107.0 dB
Free space loss (10 km) 126.9 dB 126.9 dB 127.0 dB
Free space loss (100 km) 146.9 dB 146.9 dB 147.0 dB
Free space loss (1000 km) 166.9 dB 166.9 dB 167.0 dB
Free space loss
(35,786 km = GEO orbit)
197.9 dB 198.0 dB 198.1 dB
Free space loss (378,370 km = Moon) 218.4 dB 218.5 dB 218.6 dB
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