Radio Regulations

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

All IBR Recommendations

As incorporated in RR-2012

This is not the text in force. It is the version of this Recommendation that RR-2012 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)
F

Recommendation ITU-R F.1613-0

Mandatory (2003)

Operational and deployment requirements for fixed wireless access systems in the fixed service in Region 3 to ensure the protection of systems in the Earth exploration-satellite service (active) and the space research service (active) in the band 5 250-5 350 MHz

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

5.447E

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

the frequency band 5 250-5 350 MHz is allocated to the Earth exploration-satellite service (EESS) (active) and space research service (SRS) (active) for spaceborne active sensors and to the radiolocation service on a primary basis;

Recommends

  1. that the aggregate interference from FWA systems (sum of the directional e.i.r.p. towards the satellite) should be smaller than –7.6 dB(W/20 MHz) at the Earth’s surface within the footprint of the active sensor of the EESS/SRS satellite (see Notes 1, 2 and 3);
  2. that the methodology described in Annex 1 should be used to assess the aggregate interference level from FWA systems;
  3. that, based on the FWA system characteristics presented in Table 4 for Region 3, a maximum density of 23 FWA base stations per 220 km2 should be allowed within a satellite active sensor footprint. Variation of the maximum e.i.r.p., antenna pattern and frequency planning would imply a variation in the maximum allowed density of FWA base stations;
  4. that the maximum e.i.r.p. of each FWA station should be no more than 3 dB(W/20 MHz) (see Notes 4 and 5);
  5. that administrations should control these systems to ensure that the deployment requirements for FWA systems specified in the above recommends are satisfied.
  6. NOTE 1 – This aggregate interference level is derived from the interference threshold of −132.35 dB(W/20 MHz) at the satellite receiver specified for the SAR4 in Table 5.

+5 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.