Allocations

 
U.S. Non-Federal-Government Allocations
23.15 - 23.55 GHz
FIXED
INTER-SATELLITE US145 US278
MOBILE


U.S. Federal Government Allocations
23.15 - 23.55 GHz
FIXED
INTER-SATELLITE US145 US278
MOBILE


ITU Region 1 Allocations
23.15 - 23.55 GHz
FIXED
INTER-SATELLITE 5.338A
MOBILE


ITU Region 2 Allocations
23.15 - 23.55 GHz
FIXED
INTER-SATELLITE 5.338A
MOBILE


ITU Region 3 Allocations
23.15 - 23.55 GHz
FIXED
INTER-SATELLITE 5.338A
MOBILE


SpectrumWiki

Band Uses (23.15 - 23.55 GHz)

Footnotes

5.338A   In the frequency bands 1 350-1 400 MHz, 1 427-1 452 MHz, 22.55-23.55 GHz, 24.25-27.5 GHz, 30-31.3 GHz, 49.7 50.2 GHz, 50.4-50.9 GHz, 51.4-52.4 GHz, 52.4-52.6 GHz, 81-86 GHz and 92-94 GHz, Resolution 750 (Rev.WRC 19) applies. (WRC 19)

US145   The following unwanted emissions power limits for non-geostationary satellites operating in the inter-satellite service that transmit in the band 22.55-23.55 GHz shall apply in any 200 MHz of the passive band 23.6-24 GHz, based on the date that complete advance publication information is received by the ITU’s Radiocommunication Bureau:

    (a) For information received before January 1, 2020: −36 dBW/200 MHz.

    (b) For information received on or after January 1, 2020: −46 dBW/200 MHz.

US278   In the bands 22.55-23.55 GHz and 32.3-33 GHz, non-geostationary inter-satellite links may operate on a secondary basis to geostationary inter-satellite links.


SpectrumWiki

 
Iridium
Common Carrier Fixed Point-to-Point Microwave
Possible MSS Allocations (WRC-15 Agenda Item 1.10)


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

Engineering Data

Lower Frequency Center Frequency Upper Frequency
Frequency 23.15 GHz 23.35 GHz 23.55 GHz
Wavelength 1.3 cm 1.3 cm 1.3 cm
Band designator(s) SHF; K-band (IEEE) SHF; K-band (IEEE) SHF; K-band (IEEE)
Isotropic collecting area 0.1 cm2 0.1 cm2 0.1 cm2
Free space loss (1 m) 59.7 dB 59.8 dB 59.9 dB
Free space loss (1 km) 119.7 dB 119.8 dB 119.9 dB
Free space loss (10 km) 139.7 dB 139.8 dB 139.9 dB
Free space loss (100 km) 159.7 dB 159.8 dB 159.9 dB
Free space loss (1000 km) 179.7 dB 179.8 dB 179.9 dB
Free space loss
(35,786 km = GEO orbit)
210.8 dB 210.9 dB 211.0 dB
Free space loss (378,370 km = Moon) 231.3 dB 231.4 dB 231.4 dB
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