Radio Regulations

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

All IBR Recommendations

As 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)
M

Recommendation ITU-R M.1173-1

Mandatory (1995-2012)

Technical characteristics of single-sideband transmitters used in the maritime mobile service for radiotelephony in the bands between 1 606.5 kHz (1 605 kHz Region 2) and 4 000 kHz and between 4 000 kHz and 27 500 kHz

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 -1
RR-2020 -1
RR-2024 -1

Incorporated into the RR by

RR provisions, footnotes and Resolutions that incorporate this Recommendation

Appendix

Appendix 17

Provision

52.181 52.229

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

This Recommendation provides the technical characteristics for single sideband transmitters used in the MF/HF maritime mobile service bands.

Recommends

  1. that single-sideband transmitters used in the maritime mobile service for radiotelephony in the bands between 1 606.5 kHz (1 605 kHz Region 2) and 4 000 kHz and between 4 000 kHz and 27 500 kHz should be designed to meet the technical characteristics shown in Annex 1.

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.