Allocations

 
U.S. Non-Federal-Government Allocations
5250 - 5255 MHz
Earth exploration-satellite (active)
Radiolocation
Space research


U.S. Federal Government Allocations
5250 - 5255 MHz
EARTH EXPLORATION-SATELLITE (active)
RADIOLOCATION G59
SPACE RESEARCH (active) 5.447D


ITU Region 1 Allocations
5250 - 5255 MHz
EARTH EXPLORATION-SATELLITE (active)
MOBILE except aeronautical mobile 5.446A 5.447F
RADIOLOCATION
SPACE RESEARCH 5.447D


ITU Region 2 Allocations
5250 - 5255 MHz
EARTH EXPLORATION-SATELLITE (active)
MOBILE except aeronautical mobile 5.446A 5.447F
RADIOLOCATION
SPACE RESEARCH 5.447D


ITU Region 3 Allocations
5250 - 5255 MHz
EARTH EXPLORATION-SATELLITE (active)
MOBILE except aeronautical mobile 5.446A 5.447F
RADIOLOCATION
SPACE RESEARCH 5.447D


SpectrumWiki


Footnotes


5.446A The use of the bands 5150-5350 MHz and 5470-5725 MHz by the stations in the mobile, except aeronautical mobile, service shall be in accordance with Resolution 229 (Rev.WRC-12). (WRC-12)

5.447D The allocation of the band 5250-5255 MHz to the space research service on a primary basis is limited to active spaceborne sensors. Other uses of the band by the space research service are on a secondary basis.

5.447E Additional allocation: The band 5250-5350 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 band by the fixed service is intended for the implementation of fixed wireless access systems and shall comply with Recommendation ITU-R F.1613. 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-07)

5.447F In the band 5250-5350 MHz, stations in the mobile service shall not claim protection from the radiolocation service, the Earth exploration-satellite service (active) and the space research service (active). These services shall not impose on the mobile service more stringent protection criteria, based on system characteristics and interference criteria, than those stated in Recommendations ITU-R M.1638 and ITU-R RS.1632.

5.448 Additional allocation: in Azerbaijan, Kyrgyzstan, Romania and Turkmenistan, the band 5250-5350 MHz is also allocated to the radionavigation service on a primary basis. (WRC-12)

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.

G59 In the bands 902-928 MHz, 3100-3300 MHz, 3500-3650 MHz, 5250-5350 MHz, 8500-9000 MHz, 9200-9300 MHz, 13.4-14.0 GHz, 15.7-17.7 GHz and 24.05-24.25 GHz, all Federal non-military radiolocation shall be secondary to military radiolocation, except in the sub-band 15.7-16.2 GHz airport surface detection equipment (ASDE) is permitted on a co-equal basis subject to coordination with the military departments.

SpectrumWiki

 
Globalstar (MSS, ATC, & TLPS)
Wi-Fi
2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.16


Related Documents, Links, and Multimedia:
FCC Proceeding (2)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 5.25 GHz 5.2525 GHz 5.255 GHz
Wavelength 5.7 cm 5.7 cm 5.7 cm
Band designator(s) SHF; C-band (IEEE) SHF; C-band (IEEE) SHF; C-band (IEEE)
Isotropic collecting area 2.6 cm2 2.6 cm2 2.6 cm2
Free space loss (1 m) 46.9 dB 46.9 dB 46.9 dB
Free space loss (1 km) 106.9 dB 106.9 dB 106.9 dB
Free space loss (10 km) 126.9 dB 126.9 dB 126.9 dB
Free space loss (100 km) 146.9 dB 146.9 dB 146.9 dB
Free space loss (1000 km) 166.9 dB 166.9 dB 166.9 dB
Free space loss
(35,786 km = GEO orbit)
197.9 dB 197.9 dB 197.9 dB
Free space loss (378,370 km = Moon) 218.4 dB 218.4 dB 218.4 dB