Allocations

 
U.S. Non-Federal-Government Allocations
3100 - 3300 MHz
Earth exploration-satellite (active)
Space research (active)
Radiolocation


U.S. Federal Government Allocations
3100 - 3300 MHz
RADIOLOCATION G59
Earth exploration-satellite (active)
Space research (active)


ITU Region 1 Allocations
3100 - 3300 MHz
RADIOLOCATION
Earth exploration-satellite (active)
Space research (active)


ITU Region 2 Allocations
3100 - 3300 MHz
RADIOLOCATION
Earth exploration-satellite (active)
Space research (active)


ITU Region 3 Allocations
3100 - 3300 MHz
RADIOLOCATION
Earth exploration-satellite (active)
Space research (active)


SpectrumWiki

Band Uses (3.1 - 3.3 GHz)

Footnotes

5.149   In making assignments to stations of other services to which the bands:
13 360-13 410 kHz,
25 550-25 670 kHz,
37.5-38.25 MHz,
73-74.6 MHz in Regions 1 and 3,
150.05-153 MHz in Region 1,
322-328.6 MHz,
406.1-410 MHz,
608-614 MHz in Regions 1 and 3,
1 330-1 400 MHz,
1 610.6-1 613.8 MHz,
1 660-1 670 MHz,
1 718.8-1 722.2 MHz,
2 655-2 690 MHz,
3 260-3 267 MHz,
3 332-3 339 MHz,
3 345.8-3 352.5 MHz,
4 825-4 835 MHz, 4 950-4 990 MHz,
4 990-5 000 MHz,
6 650-6 675.2 MHz,
10.6-10.68 GHz,
14.47-14.5 GHz,
22.01-22.21 GHz,
22.21-22.5 GHz,
22.81-22.86 GHz,
23.07-23.12 GHz,
31.2-31.3 GHz,
31.5-31.8 GHz in Regions 1 and 3,
36.43-36.5 GHz,
42.5-43.5 GHz,
48.94-49.04 GHz,
76-86 GHz,
92-94 GHz,
94.1-100 GHz, 102-109.5 GHz,
111.8-114.25 GHz,
128.33-128.59 GHz,
129.23-129.49 GHz,
130-134 GHz,
136-148.5 GHz,
151.5-158.5 GHz,
168.59-168.93 GHz,
171.11-171.45 GHz,
172.31-172.65 GHz,
173.52-173.85 GHz,
195.75-196.15 GHz,
209-226 GHz,
241-250 GHz,
252-275 GHz
are allocated, administrations are urged to take all practicable steps to protect the radio astronomy service from harmful interference. Emissions from spaceborne or airborne stations can be particularly serious sources of interference to the radio astronomy service (see Nos. 4.5 and 4.6 and Article 29). (WRC 07)

5.428   Additional allocation: in Kyrgyzstan and Turkmenistan, the frequency band 3 100-3 300 MHz is also allocated to the radionavigation service on a primary basis. (WRC 19)

US342   In making assignments to stations of other services to which the bands:

13 360-13 410 kHz42.77-42.87 GHz*
25 550-25 670 kHz43.07-43.17 GHz*
37.5-38.25 MHz43.37-43.47 GHz*
322-328.6 MHz*48.94-49.04 GHz*
1330-1400 MHz*76-86 GHz
1610.6-1613.8 MHz*92-94 GHz
1660-1660.5 MHz*94.1-100 GHz
1668.4-1670 MHz*102-109.5 GHz
3260-3267 MHz*111.8-114.25 GHz
3332-3339 MHz*128.33-128.59 GHz*
3345.8-3352.5 MHz*129.23-129.49 GHz*
4825-4835 MHz*130-134 GHz
4950-4990 MHz136-148.5 GHz
6650-6675.2 MHz*151.5-158.5 GHz
14.47-14.5 GHz*168.59-168.93 GHz*
22.01-22.21 GHz*171.11-171.45 GHz*
22.21-22.5 GHz172.31-172.65 GHz*
22.81-22.86 GHz*173.52-173.85 GHz*
23.07-23.12 GHz*195.75-196.15 GHz*
31.2-31.3 GHz209-226 GHz
36.43-36.5 GHz*241-250 GHz
42.5-43.5 GHz252-275 GHz

are allocated (*indicates radio astronomy use for spectral line observations), all practicable steps shall be taken to protect the radio astronomy service from harmful interference. Emissions from spaceborne or airborne stations can be particularly serious sources of interference to the radio astronomy service (see ITU Radio Regulations at Nos. 4.5 and 4.6 and Article 29).

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

 
SPY-1 Shipborne Air Surveillance Radar
WRC 23 Agenda Item 1.2 IMT identification
Through-wall Radar waiver


Related Documents, Links, and Multimedia:
Band Plan (1)
Other (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 3.1 GHz 3.2 GHz 3.3 GHz
Wavelength 9.7 cm 9.4 cm 9.1 cm
Band designator(s) SHF; S-band (IEEE) SHF; S-band (IEEE) SHF; S-band (IEEE)
Isotropic collecting area 7.4 cm2 7.0 cm2 6.6 cm2
Free space loss (1 m) 42.3 dB 42.6 dB 42.8 dB
Free space loss (1 km) 102.3 dB 102.6 dB 102.8 dB
Free space loss (10 km) 122.3 dB 122.6 dB 122.8 dB
Free space loss (100 km) 142.3 dB 142.6 dB 142.8 dB
Free space loss (1000 km) 162.3 dB 162.6 dB 162.8 dB
Free space loss
(35,786 km = GEO orbit)
193.4 dB 193.6 dB 193.9 dB
Free space loss (378,370 km = Moon) 213.8 dB 214.1 dB 214.4 dB
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