Allocations

 
U.S. Non-Federal-Government Allocations
1300 - 1350 MHz
AERONAUTICAL RADIONAVIGATION 5.337

FCC Rule Parts:
Aviation (87)

U.S. Federal Government Allocations
1300 - 1350 MHz
AERONAUTICAL RADIONAVIGATION 5.337
Radiolocation G2


ITU Region 1 Allocations
1300 - 1350 MHz
RADIOLOCATION
AERONAUTICAL RADIONAVIGATION 5.337
RADIONAVIGATION-SATELLITE (Earth-to-space)


ITU Region 2 Allocations
1300 - 1350 MHz
RADIOLOCATION
AERONAUTICAL RADIONAVIGATION 5.337
RADIONAVIGATION-SATELLITE (Earth-to-space)


ITU Region 3 Allocations
1300 - 1350 MHz
RADIOLOCATION
AERONAUTICAL RADIONAVIGATION 5.337
RADIONAVIGATION-SATELLITE (Earth-to-space)


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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)

5.337   The use of the bands 1 300-1 350 MHz, 2 700-2 900 MHz and 9 000-9 200 MHz by the aeronautical radionavigation service is restricted to ground-based radars and to associated airborne transponders which transmit only on frequencies in these bands and only when actuated by radars operating in the same band.

5.337A   The use of the band 1 300-1 350 MHz by earth stations in the radionavigation-satellite service and by stations in the radiolocation service shall not cause harmful interference to, nor constrain the operation and development of, the aeronautical-radionavigation service. (WRC 2000)

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).

G2   In the bands 216.965-216.995 MHz, 420-450 MHz (except as provided for in G129), 890-902 MHz, 928-942 MHz, 1300-1390 MHz, 2310-2390 MHz, 2417-2450 MHz, 2700-2900 MHz, 3300-3500 MHz, 5650-5925 MHz, and 9000-9200 MHz, use of the Federal radiolocation service is restricted to the military services.


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Amateur Radio (23 cm)
Soil Moisture Active Passive (SMAP) Satellite




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Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 1300 MHz 1325 MHz 1350 MHz
Wavelength 23.1 cm 22.6 cm 22.2 cm
Band designator(s) UHF; L-band (IEEE) UHF; L-band (IEEE) UHF; L-band (IEEE)
Isotropic collecting area 42.3 cm2 40.7 cm2 39.2 cm2
Free space loss (1 m) 34.7 dB 34.9 dB 35.1 dB
Free space loss (1 km) 94.7 dB 94.9 dB 95.1 dB
Free space loss (10 km) 114.7 dB 114.9 dB 115.1 dB
Free space loss (100 km) 134.7 dB 134.9 dB 135.1 dB
Free space loss (1000 km) 154.7 dB 154.9 dB 155.1 dB
Free space loss
(35,786 km = GEO orbit)
185.8 dB 186.0 dB 186.1 dB
Free space loss (378,370 km = Moon) 206.3 dB 206.5 dB 206.6 dB
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