Allocations

 
U.S. Non-Federal-Government Allocations
1427 - 1429.5 MHz
LAND MOBILE (telemetry and telecommand)
FIXED (telemetry)


U.S. Federal Government Allocations
1427 - 1429.5 MHz
LAND MOBILE (medical telemetry and medical telecommand) US350


ITU Region 1 Allocations
1427 - 1429 MHz
SPACE OPERATION (Earth-to-space)
FIXED
MOBILE except aeronautical mobile


ITU Region 2 Allocations
1427 - 1429 MHz
SPACE OPERATION (Earth-to-space)
FIXED
MOBILE except aeronautical mobile


ITU Region 3 Allocations
1427 - 1429 MHz
SPACE OPERATION (Earth-to-space)
FIXED
MOBILE except aeronautical mobile


SpectrumWiki


Footnotes


5.338A In the bands 1350-1400 MHz, 1427-1452 MHz, 22.55-23.55 GHz, 30-31.3 GHz, 49.7-50.2 GHz, 50.4-50.9 GHz, 51.4-52.6 GHz, 81-86 GHz and 92-94 GHz, Resolution 750 (Rev.WRC-12) applies. (WRC-12)

5.341 In the bands 1400-1727 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.

US350 In the band 1427-1432 MHz, Federal use of the land mobile service and non-Federal use of the fixed and land mobile services is limited to telemetry and telecommand operations as described further:

(a) Medical operations. The use of the band 1427-1432 MHz for medical telemetry and telecommand operations (medical operations) shall be authorized for both Federal and non-Federal stations.

(1) Medical operations shall be authorized in the band 1427-1429.5 MHz in the United States and its insular areas, except in the following locations: Austin/Georgetown, Texas; Detroit and Battle Creek, Michigan; Pittsburgh, Pennsylvania; Richmond/Norfolk, Virginia; Spokane, Washington; and Washington DC metropolitan area (collectively, the “carved-out” locations). See Section 47 C.F.R. 90.259(b)(4) for a detailed description of these areas.

(2) In the carved-out locations, medical operations shall be authorized in the band 1429-1431.5 MHz.

(3) Medical operations may operate on frequencies in the band 1427-1432 MHz other than those described in paragraphs (a)(1) and (2) only if the operations were registered with a designated frequency coordinator prior to April 14, 2010.

(b) Non-medical operations. The use of the band 1427-1432 MHz for non-medical telemetry and telecommand operations (non-medical operations) shall be limited to non-Federal stations.

(1) Non-medical operations shall be authorized on a secondary basis to the Wireless Medical Telemetry Service (WMTS) in the band 1427-1429.5 MHz and on a primary basis in the band 1429.5-1432 MHz in the United States and its insular areas, except in the carved-out locations.

(2) In the carved-out locations, non-medical operations shall be authorized on a secondary basis in the band 1429-1431.5 MHz and on a primary basis in the bands 1427-1429 MHz and 1431.5-1432 MHz.



US79 In the bands 1390-1400 MHz and 1427-1432 MHz, the following provisions shall apply:

(a) Airborne and space-to-Earth operations are prohibited.

(b) Federal operations (except for devices authorized by the FCC for the Wireless Medical Telemetry Service) are on a non-interference basis to non-Federal operations and shall not constrain implementation of non-Federal operations.

NG338A In the bands 1390-1395 MHz and 1427-1435 MHz, licensees are encouraged to take all reasonable steps to ensure that unwanted emissions power does not exceed the following levels in the band 1400-1427 MHz:

(a) For stations of point-to-point systems in the fixed service: -45 dBW/27 MHz.

(b) For stations in the mobile service (except for devices authorized by the FCC for the Wireless Medical Telemetry Service): -60 dBW/27 MHz.



SpectrumWiki

 
Wireless Medical Telemetry Service (WMTS)
Standard LTE Bands
Radio Astronomy (1400-1427 MHz)
Soil Moisture Active Passive (SMAP) Satellite


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

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 1427 MHz 1428.25 MHz 1429.5 MHz
Wavelength 21.0 cm 21.0 cm 21.0 cm
Band designator(s) UHF; L-band (IEEE) UHF; L-band (IEEE) UHF; L-band (IEEE)
Isotropic collecting area 35.1 cm2 35.1 cm2 35.0 cm2
Free space loss (1 m) 35.5 dB 35.5 dB 35.6 dB
Free space loss (1 km) 95.5 dB 95.5 dB 95.6 dB
Free space loss (10 km) 115.5 dB 115.5 dB 115.6 dB
Free space loss (100 km) 135.5 dB 135.5 dB 135.6 dB
Free space loss (1000 km) 155.5 dB 155.5 dB 155.6 dB
Free space loss
(35,786 km = GEO orbit)
186.6 dB 186.6 dB 186.6 dB
Free space loss (378,370 km = Moon) 207.1 dB 207.1 dB 207.1 dB