Allocations

 
U.S. Non-Federal-Government Allocations
5470 - 5570 MHz
RADIOLOCATION
MARITIME RADIONAVIGATION US65
Earth exploration-satellite (active)
Space research (active)


U.S. Federal Government Allocations
5470 - 5570 MHz
EARTH EXPLORATION-SATELLITE (active)
RADIOLOCATION G56
MARITIME RADIONAVIGATION US65
SPACE RESEARCH (active)


ITU Region 1 Allocations
5470 - 5570 MHz
EARTH EXPLORATION-SATELLITE (active)
MOBILE except aeronautical mobile 5.446A 5.450A
RADIOLOCATION 5.450B
MARITIME RADIONAVIGATION
SPACE RESEARCH (active)


ITU Region 2 Allocations
5470 - 5570 MHz
EARTH EXPLORATION-SATELLITE (active)
MOBILE except aeronautical mobile 5.446A 5.450A
RADIOLOCATION 5.450B
MARITIME RADIONAVIGATION
SPACE RESEARCH (active)


ITU Region 3 Allocations
5470 - 5570 MHz
EARTH EXPLORATION-SATELLITE (active)
MOBILE except aeronautical mobile 5.446A 5.450A
RADIOLOCATION 5.450B
MARITIME RADIONAVIGATION
SPACE RESEARCH (active)


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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)

5.448B The Earth exploration-satellite service (active) operating in the band 5350-5570 MHz and space research service (active) operating in the band 5460-5570 MHz shall not cause harmful interference to the aeronautical radionavigation service in the band 5350-5460 MHz, the radionavigation service in the band 5460-5470 MHz and the maritime radionavigation service in the band 5470-5570 MHz.

5.450 Additional allocation: in Austria, Azerbaijan, Iran (Islamic Republic of), Kyrgyzstan, Romania, Turkmenistan and Ukraine, the band 5470-5650 MHz is also allocated to the aeronautical radionavigation service on a primary basis. (WRC-12)

5.450A In the band 5470-5725 MHz, stations in the mobile service shall not claim protection from radiodetermination services. Radiodetermination services shall not impose on the mobile service more stringent protection criteria, based on system characteristics and interference criteria, than those stated in Recommendation ITU-R M.1638.

5.450B In the frequency band 5470-5650 MHz, stations in the radiolocation service, except ground-based radars used for meteorological purposes in the band 5600-5650 MHz, shall not cause harmful interference to, nor claim protection from, radar systems in the maritime radionavigation service.

5.451 Additional allocation: in the United Kingdom, the band 5470-5850 MHz is also allocated to the land mobile service on a secondary basis. The power limits specified in Nos. 21.2, 21.3, 21.4 and 21.5 shall apply in the band 5725-5850 MHz.

US50 In the band 5470-5650 MHz, the radiolocation service may be authorized for non-Federal use on the condition that harmful interference is not caused to the maritime radionavigation service or to the Federal radiolocation service.

US65 The use of the band 5460-5650 MHz by the maritime radionavigation service is limited to shipborne radars.

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.

G131 Federal stations in the radiolocation service operating in the band 5470-5650 MHz, with the exception of ground-based radars used for meteorological purposes operating in the band 5600-5650 MHz, shall not cause harmful interference to, nor claim protection from, Federal stations in the maritime radionavigation service.

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Wi-Fi
2019 World Radiocommunication Conference (WRC-19) Agenda Item 1.16


Related Documents, Links, and Multimedia:
FCC Proceeding (2)
White Paper (1)
Legislation (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 5.47 GHz 5.52 GHz 5.57 GHz
Wavelength 5.5 cm 5.4 cm 5.4 cm
Band designator(s) SHF; C-band (IEEE) SHF; C-band (IEEE) SHF; C-band (IEEE)
Isotropic collecting area 2.4 cm2 2.3 cm2 2.3 cm2
Free space loss (1 m) 47.2 dB 47.3 dB 47.4 dB
Free space loss (1 km) 107.2 dB 107.3 dB 107.4 dB
Free space loss (10 km) 127.2 dB 127.3 dB 127.4 dB
Free space loss (100 km) 147.2 dB 147.3 dB 147.4 dB
Free space loss (1000 km) 167.2 dB 167.3 dB 167.4 dB
Free space loss
(35,786 km = GEO orbit)
198.3 dB 198.4 dB 198.4 dB
Free space loss (378,370 km = Moon) 218.8 dB 218.8 dB 218.9 dB