Radio Regulations

Source: the Radio Regulations published by the International Telecommunication Union (ITU).

All IBR Recommendations
S

Recommendation ITU-R S.1340-0

Mandatory (1997)

Sharing between feeder links for the mobile-satellite service and the aeronautical radionavigation service in the Earth-to-space direction in the band 15.4-15.7 GHz

View official text at ITU

Version history

Version evolution

The number in each cell (e.g. −9) is the Recommendation's revision number — the “-9” in ITU-R M.585-9, not a negative value. So −8 → −9 means the binding reference moved from the 8th to the 9th revision.

RR-2008 -0
RR-2012 -0
RR-2016 -0
RR-2020 -0
RR-2024 -0

Incorporated into the RR by

RR provisions, footnotes and Resolutions that incorporate this Recommendation

Footnote

5.511C

Where it applies

Frequency bands and radio services this Recommendation reaches, derived from the RR footnotes that incorporate it.

Radio services

AERONAUTICAL MOBILE (2°) AERONAUTICAL RADIONAVIGATION FIXED-SATELLITE RADIOLOCATION

Frequency bands

ITU RR table: 15.4-17.3 GHz

Scope

Resolution 117 of the World Administrative Radio Conference (Geneva, 1995) (WARC-95) calls for studies by the ITU-R of the sharing situation between feeder links (Earth-to-space) for the mobile-satellite service (MSS) and the aeronautical radionavigation service in the band 15.45-15.65 GHz;

Recommends

  1. that feeder links for the MSS should be limited to the band 15.43-15.63 GHz (see Note 1);
  2. that the emissions expressed as effective e.i.r.p. (Eeff ) from aeronautical radionavigation stations should not exceed the following:
  3. 2.1 for aircraft landing systems and for feeder-link bandwidths greater than 3 MHz:
  4. Eeff = 5353 − 0.833 (ϕ − 8)4848 − 9 (ϕ − 32)30
  5. 2.2 for general purpose aircraft radars and for feeder-link bandwidths greater than 1 MHz:
  6. Eeff = 6262 − 0.56 (ϕ − 20)24871.86 − 25 log (ϕ − 20)29.8

+17 more in the full text

Source: ITU Radio Regulations, editions of 2008, 2012, 2016, 2020 and 2024. The English, French and Spanish texts are each taken from the official edition in that language, not translated from one another. Sources and citation.