Allocations

 
U.S. Non-Federal-Government Allocations
8.65 - 9 GHz
RADIOLOCATION


U.S. Federal Government Allocations
8.65 - 9 GHz
RADIOLOCATION G59


ITU Region 1 Allocations
8.85 - 9 GHz
RADIOLOCATION
MARITIME RADIONAVIGATION 5.472


ITU Region 2 Allocations
8.85 - 9 GHz
RADIOLOCATION
MARITIME RADIONAVIGATION 5.472


ITU Region 3 Allocations
8.85 - 9 GHz
RADIOLOCATION
MARITIME RADIONAVIGATION 5.472


SpectrumWiki


Footnotes


5.472 In the bands 8850-9000 MHz and 9200-9225 MHz, the maritime radionavigation service is limited to shore-based radars.

5.473 Additional allocation: in Armenia, Austria, Azerbaijan, Belarus, Cuba, the Russian Federation, Georgia, Hungary, Mongolia, Uzbekistan, Poland, Kyrgyzstan, Romania, Tajikistan, Turkmenistan and Ukraine, the bands 8850-9000 MHz and 9200-9300 MHz are also allocated to the radionavigation service on a primary basis. (WRC-07)

US53 In view of the fact that the band 13.25-13.4 GHz is allocated to doppler navigation aids, Federal and non-Federal airborne doppler radars in the aeronautical radionavigation service are permitted in the band 8750-8850 MHz only on the condition that they must accept any interference that may be experienced from stations in the radiolocation service in the band 8500-10000 MHz.

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

 
Airport Surface Detection Radars (ASDE-X)
IEEE 802.15.4 HRP UWB
Airborne Doppler navigation aids
Possible extension of EESS (active) allocation (WRC-15 Agenda Item 1.12)


Related Documents, Links, and Multimedia:

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 8.65 GHz 8.825 GHz 9 GHz
Wavelength 3.5 cm 3.4 cm 3.3 cm
Band designator(s) SHF; X-band (IEEE) SHF; X-band (IEEE) SHF; X-band (IEEE)
Isotropic collecting area 1.0 cm2 0.9 cm2 0.9 cm2
Free space loss (1 m) 51.4 dB 51.4 dB 51.5 dB
Free space loss (1 km) 111.4 dB 111.4 dB 111.5 dB
Free space loss (10 km) 131.4 dB 131.4 dB 131.5 dB
Free space loss (100 km) 151.4 dB 151.4 dB 151.5 dB
Free space loss (1000 km) 171.4 dB 171.4 dB 171.5 dB
Free space loss
(35,786 km = GEO orbit)
202.5 dB 202.4 dB 202.6 dB
Free space loss (378,370 km = Moon) 222.9 dB 222.9 dB 223.1 dB