Allocations

 
U.S. Non-Federal-Government Allocations
1670 - 1675 MHz
FIXED
MOBILE except aeronautical mobile

Relevant FCC Auctions:
Auction 46 (1670-1675 MHz Band Nationwide License), $12,628,000
 Total net auction bids: $12,628,000

U.S. Federal Government Allocations
1670 - 1675 MHz


ITU Region 1 Allocations
1670 - 1675 MHz
METEOROLOGICAL AIDS
FIXED
METEOROLOGICAL-SATELLITE (space-to-Earth)
MOBILE
MOBILE-SATELLITE (Earth-to-space) 5.351A 5.379B


ITU Region 2 Allocations
1670 - 1675 MHz
METEOROLOGICAL AIDS
FIXED
METEOROLOGICAL-SATELLITE (space-to-Earth)
MOBILE
MOBILE-SATELLITE (Earth-to-space) 5.351A 5.379B


ITU Region 3 Allocations
1670 - 1675 MHz
METEOROLOGICAL AIDS
FIXED
METEOROLOGICAL-SATELLITE (space-to-Earth)
MOBILE
MOBILE-SATELLITE (Earth-to-space) 5.351A 5.379B


SpectrumWiki

Band Uses (1670 - 1675 MHz)


Footnotes

5.341   In the bands 1 400-1 727 MHz, 101-120 GHz and 197-220 GHz, passive research is being conducted by some countries in a programme for the search for intentional emissions of extraterrestrial origin.

5.351A   For the use of the bands 1 518-1 544 MHz, 1 545-1 559 MHz, 1 610-1 645.5 MHz, 1 646.5-1 660.5 MHz, 1 668-1 675 MHz, 1 980-2 010 MHz, 2 170-2 200 MHz, 2 483.5-2 520 MHz and 2 670-2 690 MHz by the mobile-satellite service, see Resolutions 212 (Rev.WRC 07)* and 225 (Rev.WRC 07)**. (WRC 07)

5.379B   The use of the band 1 668-1 675 MHz by the mobile-satellite service is subject to coordination under No. 9.11A. In the band 1 668-1 668.4 MHz, Resolution 904 (WRC 07) shall apply. (WRC-07)

5.379D   For sharing of the band 1 668.4-1 675 MHz between the mobile-satellite service and the fixed and mobile services, Resolution 744 (Rev.WRC 07) shall apply. (WRC-07)

5.379E   In the band 1 668.4-1 675 MHz, stations in the mobile-satellite service shall not cause harmful interference to stations in the meteorological aids service in China, Iran (Islamic Republic of), Japan and Uzbekistan. In the band 1 668.4-1 675 MHz, administrations are urged not to implement new systems in the meteorological aids service and are encouraged to migrate existing meteorological aids service operations to other bands as soon as practicable. (WRC-03)

5.380A   In the band 1 670-1 675 MHz, stations in the mobile-satellite service shall not cause harmful interference to, nor constrain the development of, existing earth stations in the meteorological-satellite service notified before 1 January 2004. Any new assignment to these earth stations in this band shall also be protected from harmful interference from stations in the mobile-satellite service. (WRC-07)

US211   In the bands 1670-1690, 5000-5250 MHz and 10.7-11.7, 15.1365-15.35, 15.4-15.7, 22.5-22.55, 24-24.05, 31.0-31.3, 31.8-32.0, 40.5-42.5, 116-122.25, 123-130, 158.5-164, 167-168, 191.8-200, and 252-265 GHz, applicants for airborne or space station assignments are urged to take all practicable steps to protect radio astronomy observations in the adjacent bands from harmful interference; however, US74 applies.

US362   The band 1670-1675 MHz is allocated to the meteorological-satellite service (space-to-Earth) on a primary basis for Federal use. Earth station use of this allocation is limited to Wallops Island, VA (37° 56' 44'' N, 75° 27' 37'' W), Fairbanks, AK (64° 58' 22'' N, 147° 30' 04'' W), and Greenbelt, MD (39° 00' 02'' N, 76° 50' 29'' W). Applicants for non-Federal stations within 100 kilometers of the Wallops Island or Fairbanks coordinates and within 65 kilometers of the Greenbelt coordinates shall notify NOAA in accordance with the procedures specified in 47 CFR 1.924.


SpectrumWiki

 
GOES, POES, & MetOp Weather Satellites
Radiosondes
WRC-27 consideration of MSS space-to-space links




Related Documents, Links, and Multimedia:
FCC Proceeding (1)
Occupancy Measurements (10)
Legislation (1)
Other (1)




Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 1670 MHz 1672.5 MHz 1675 MHz
Wavelength 18.0 cm 17.9 cm 17.9 cm
Band designator(s) UHF; L-band (IEEE) UHF; L-band (IEEE) UHF; L-band (IEEE)
Isotropic collecting area 25.6 cm2 25.6 cm2 25.5 cm2
Free space loss (1 m) 36.9 dB 36.9 dB 36.9 dB
Free space loss (1 km) 96.9 dB 96.9 dB 96.9 dB
Free space loss (10 km) 116.9 dB 116.9 dB 116.9 dB
Free space loss (100 km) 136.9 dB 136.9 dB 136.9 dB
Free space loss (1000 km) 156.9 dB 156.9 dB 156.9 dB
Free space loss
(35,786 km = GEO orbit)
188.0 dB 188.0 dB 188.0 dB
Free space loss (378,370 km = Moon) 208.5 dB 208.5 dB 208.5 dB
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