AP15 – 109 – APPENDIX 15 (REV.WRC-15) Frequencies for distress and safety communications for the Global Maritime Distress and Safety System (GMDSS) (See Article 31) MOD TABLE 15-2 (WRC-15) Frequencies above 30 MHz (VHF/UHF) APPENDIX 17 (REV.WRC-15) Frequencies and channelling arrangements in the high-frequency bands for the maritime mobile service (See Article 52) ANNEX 1* (REV.WRC-15) Frequencies and channelling arrangements in the high-frequency bands for the maritime mobile service, in force until 31 December 2016 (WRC-12) PART B – Channelling arrangements (Rev.WRC-15)_______________ * Note by the Secretariat: Annex 1 contains the entire text of Appendix 17 (Rev.WRC-07) Frequency (MHz) Description of usage Notes *121.5 AERO-SAR The aeronautical emergency frequency 121.5 MHz is used for the purposes of distress and urgency for radiotelephony by stations of the aeronautical mobile service using frequencies in the frequency band between 117.975 MHz and 137 MHz. This frequency may also be used for these purposes by survival craft stations. Use of the frequency 121.5 MHz by emergency position-indicating radio beacons shall be in accordance with Recommendation ITU-R M.690-3. Mobile stations of the maritime mobile service may communicate with stations of the aeronautical mobile service on the aeronautical emergency frequency 121.5 MHz for the purposes of distress and urgency only, and on the aeronautical auxiliary frequency 123.1 MHz for coordinated search and rescue operations, using class A3E emissions for both frequencies (see also Nos. 5.111 and 5.200). They shall then comply with any special arrangement between governments concerned by which the aeronautical mobile service is regulated.