Allocations

 
U.S. Non-Federal-Government Allocations
402 - 403 MHz
METEOROLOGICAL AIDS (radiosonde) US70
Earth exploration-satellite (Earth-to-space)
Meteorological-satellite (Earth-to-space)

FCC Rule Parts:
MedRadio (95I)

U.S. Federal Government Allocations
402 - 403 MHz
METEOROLOGICAL AIDS (radiosonde) US70
EARTH EXPLORATION-SATELLITE (Earth-to-space)
METEOROLOGICAL-SATELLITE (Earth-to-space)


ITU Region 1 Allocations
402 - 403 MHz
METEOROLOGICAL AIDS
EARTH EXPLORATION-SATELLITE (Earth-to-space)
METEOROLOGICAL-SATELLITE (Earth-to-space)
Fixed
Mobile except aeronautical mobile


ITU Region 2 Allocations
402 - 403 MHz
METEOROLOGICAL AIDS
EARTH EXPLORATION-SATELLITE (Earth-to-space)
METEOROLOGICAL-SATELLITE (Earth-to-space)
Fixed
Mobile except aeronautical mobile


ITU Region 3 Allocations
402 - 403 MHz
METEOROLOGICAL AIDS
EARTH EXPLORATION-SATELLITE (Earth-to-space)
METEOROLOGICAL-SATELLITE (Earth-to-space)
Fixed
Mobile except aeronautical mobile


SpectrumWiki

Band Uses (402 - 403 MHz)


Footnotes

5.264A   In the frequency band 401-403 MHz, the maximum e.i.r.p. of any emission of each earth station in the meteorological-satellite service and the Earth exploration-satellite service shall not exceed 22 dBW in any 4 kHz band for geostationary-satellite systems and non-geostationary-satellite systems with an orbit of apogee equal or greater than 35 786 km.

    The maximum e.i.r.p. of any emission of each earth station in the meteorological-satellite service and the Earth exploration-satellite service shall not exceed 7 dBW in any 4 kHz band for non-geostationary-satellite systems with an orbit of apogee lower than 35 786 km.

    The maximum e.i.r.p. of each earth station in the meteorological-satellite service and the Earth exploration-satellite service shall not exceed 22 dBW for geostationary-satellite systems and non-geostationary-satellite systems with an orbit of apogee equal or greater than 35 786 km in the whole 401-403 MHz frequency band. The maximum e.i.r.p. of each earth station in the meteorological-satellite service and the Earth exploration-satellite service shall not exceed 7 dBW for non-geostationary-satellite systems with an orbit of apogee lower than 35 786 km in the whole 401-403 MHz frequency band.

    Until 22 November 2029, these limits shall not apply to satellite systems for which complete notification information has been received by the Radiocommunication Bureau by 22 November 2019 and that have been brought into use by that date. After 22 November 2029, these limits shall apply to all systems within the meteorological-satellite service and the Earth exploration-satellite service operating in this frequency band. (WRC 19)

5.264B   Non-geostationary-satellite systems in the meteorological-satellite service and the Earth exploration-satellite service for which complete notification information has been received by the Radiocommunication Bureau before 28 April 2007 are exempt from provisions of No. 5.264A and may continue to operate in the frequency band 401.898-402.522 MHz on a primary basis without exceeding a maximum e.i.r.p. level of 12 dBW. (WRC 19)

US64   (a) In the band 401-406 MHz, the mobile, except aeronautical mobile, service is allocated on a secondary basis and is limited to, with the exception of military tactical mobile stations, Medical Device Radiocommunication Service (MedRadio) operations. MedRadio stations are authorized by rule on the condition that harmful interference is not caused to stations in the meteorological aids, meteorological-satellite, and Earth exploration-satellite services, and that MedRadio stations accept interference from stations in the meteorological aids, meteorological-satellite, and Earth exploration-satellite services.

    (b) The bands 413-419 MHz, 426-432 MHz, 438-444 MHz, and 451-457 MHz are also allocated on a secondary basis to the mobile, except aeronautical mobile, service. The use of this allocation is limited to MedRadio operations. MedRadio stations are authorized by rule and operate in accordance with 47 CFR part 95.

US70   The meteorological aids service allocation in the band 400.15-406.0 MHz does not preclude the operation therein of associated ground transmitters.

US384   In the band 401-403 MHz, the non-Federal Earth exploration-satellite (Earth-to-space) and meteorological-satellite (Earth-to-space) services are limited to earth stations transmitting to Federal space stations.


SpectrumWiki

 
WRC-19 Agenda Item 1.2
Radiosondes
IEEE 802.15.4 HRP UWB




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




Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 402 MHz 402.5 MHz 403 MHz
Wavelength 74.6 cm 74.5 cm 74.4 cm
Band designator(s) UHF UHF UHF
Isotropic collecting area 442.6 cm2 441.5 cm2 440.4 cm2
Free space loss (1 m) 24.5 dB 24.5 dB 24.6 dB
Free space loss (1 km) 84.5 dB 84.5 dB 84.6 dB
Free space loss (10 km) 104.5 dB 104.5 dB 104.6 dB
Free space loss (100 km) 124.5 dB 124.5 dB 124.6 dB
Free space loss (1000 km) 144.5 dB 144.5 dB 144.6 dB
Free space loss
(35,786 km = GEO orbit)
175.6 dB 175.6 dB 175.6 dB
Free space loss (378,370 km = Moon) 196.1 dB 196.1 dB 196.1 dB
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