Radio Regulations
Source: the Radio Regulations published by the International Telecommunication Union (ITU).
All IBR RecommendationsAs incorporated in RR-2020
This is not the text in force. It is the version of this Recommendation that RR-2020 gave treaty-binding force, kept so that the incorporated set can be read as it stood at each conference.
See the edition in force (RR-2024)Recommendation ITU-R S.1428-1
Mandatory (2000-2001)Reference FSS earth-station radiation patterns for use in interference assessment involving non-GSO satellites in frequency bands between 10.7 GHz and 30 GHz
Version history
Version evolutionThe 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.
Incorporated into the RR by
RR provisions, footnotes and Resolutions that incorporate this Recommendation
Provision
Bands and services are derived from the footnotes of the Radio Regulations as they stand, so they are shown only on the edition in force.
Scope
for earth station antennas in the fixed-satellite service (FSS), Recommendation ITU-R S.465 prescribes a reference antenna radiation pattern which represents an envelope of the side-lobe peaks;
Recommends
- that for interference calculations involving moving interfering sources and/or victim receivers of FSS interference, the following reference earth station radiation antenna pattern should be employed:
- for 20 ≤ Dλ ≤ 25:
- G(ϕ) = Gmax – 2.5 × 10–3 Dλϕ2 dBi for 0 < ϕ < ϕm
- G(ϕ) = G1 for ϕm ≤ ϕ < 95λD
- G(ϕ) = 29 – 25 log ϕ dBi for 95λD ≤ ϕ < 33.1°
- G(ϕ) = –9 dBi for 33.1° < ϕ ≤ 80°
+32 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.