Allocations

 
U.S. Non-Federal-Government Allocations
122.25 - 123 GHz
FIXED
INTER-SATELLITE
MOBILE 5.558
Amateur


U.S. Federal Government Allocations
122.25 - 123 GHz
FIXED
INTER-SATELLITE
MOBILE 5.558


ITU Region 1 Allocations
122.25 - 123 GHz
FIXED
INTER-SATELLITE
MOBILE 5.558
Amateur


ITU Region 2 Allocations
122.25 - 123 GHz
FIXED
INTER-SATELLITE
MOBILE 5.558
Amateur


ITU Region 3 Allocations
122.25 - 123 GHz
FIXED
INTER-SATELLITE
MOBILE 5.558
Amateur


SpectrumWiki

Band Uses (122.25 - 123 GHz)

Footnotes

5.138   The following bands:

    6 765-6 795 kHz (centre frequency 6 780 kHz),
    433.05-434.79 MHz (centre frequency 433.92 MHz) in Region 1 except in the countries mentioned in No. 5.280,
    61-61.5 GHz (centre frequency 61.25 GHz),
    122-123 GHz (centre frequency 122.5 GHz), and
    244-246 GHz (centre frequency 245 GHz)

are designated for industrial, scientific and medical (ISM) applications. The use of these frequency bands for ISM applications shall be subject to special authorization by the administration concerned, in agreement with other administrations whose radiocommunication services might be affected. In applying this provision, administrations shall have due regard to the latest relevant ITU R Recommendations.

5.558   In the bands 55.78-58.2 GHz, 59-64 GHz, 66-71 GHz, 122.25-123 GHz, 130-134 GHz, 167-174.8 GHz and 191.8-200 GHz, stations in the aeronautical mobile service may be operated subject to not causing harmful interference to the inter-satellite service (see No. 5.43). (WRC 2000)


SpectrumWiki

 
Industrial, Scientific, and Medical Devices (ISM, FCC Part 18)


Related Documents, Links, and Multimedia:
FCC Proceeding (1)

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 122.25 GHz 122.625 GHz 123 GHz
Wavelength 2.5 mm 2.4 mm 2.4 mm
Band designator(s) EHF (millimeter wave) EHF (millimeter wave) EHF (millimeter wave)
Isotropic collecting area 0.5 mm2 0.5 mm2 0.5 mm2
Free space loss (1 m) 74.2 dB 74.2 dB 74.2 dB
Free space loss (1 km) 134.2 dB 134.2 dB 134.2 dB
Free space loss (10 km) 154.2 dB 154.2 dB 154.2 dB
Free space loss (100 km) 174.2 dB 174.2 dB 174.2 dB
Free space loss (1000 km) 194.2 dB 194.2 dB 194.2 dB
Free space loss
(35,786 km = GEO orbit)
225.3 dB 225.3 dB 225.3 dB
Free space loss (378,370 km = Moon) 245.8 dB 245.8 dB 245.8 dB
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