Allocations

 
U.S. Non-Federal-Government Allocations
322 - 328.6 MHz


U.S. Federal Government Allocations
322 - 328.6 MHz
FIXED
MOBILE


ITU Region 1 Allocations
322 - 328.6 MHz
FIXED
MOBILE
RADIO ASTRONOMY


ITU Region 2 Allocations
322 - 328.6 MHz
FIXED
MOBILE
RADIO ASTRONOMY


ITU Region 3 Allocations
322 - 328.6 MHz
FIXED
MOBILE
RADIO ASTRONOMY


SpectrumWiki



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)

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).

G27   In the bands 225-328.6 MHz, 335.4-399.9 MHz, and 1350-1390 MHz, the fixed and mobile services are limited to the military services.


SpectrumWiki

 
Military Mobile-Satellite Communications (NTIA)
Area Common User System (ACUS) (NTIA)
Federal Maritime Mobile Communications (NTIA)
Military Aeronautical/ATC Communications and Telemetry (NTIA)
IEEE 802.15.4 HRP UWB
Military Battle Simulation Systems (NTIA)
NASA Differential GPS (NTIA)




Related Documents, Links, and Multimedia:
Occupancy Measurements (10)




Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 322 MHz 325.3 MHz 328.6 MHz
Wavelength 93.1 cm 92.2 cm 91.2 cm
Band designator(s) UHF UHF UHF
Isotropic collecting area 689.8 cm2 675.9 cm2 662.4 cm2
Free space loss (1 m) 22.6 dB 22.7 dB 22.8 dB
Free space loss (1 km) 82.6 dB 82.7 dB 82.8 dB
Free space loss (10 km) 102.6 dB 102.7 dB 102.8 dB
Free space loss (100 km) 122.6 dB 122.7 dB 122.8 dB
Free space loss (1000 km) 142.6 dB 142.7 dB 142.8 dB
Free space loss
(35,786 km = GEO orbit)
173.7 dB 173.8 dB 173.9 dB
Free space loss (378,370 km = Moon) 194.2 dB 194.3 dB 194.3 dB
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