Part B - Satellite Signals
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Statutory Documents - IMO Publications and Documents - Resolutions - Assembly - IMO Resolution A.810(19) – Performance Standards for Float-Free Satellite Emergency Position-Indicating Radio Beacons (EPIRBs) Operating on 406 MHz – (Adopted on 23 November 1995) - Annex - Performance Standards for Float-Free Satellite Emergency Position-Indicating Radio Beacons (EPIRBs) Operating on 406 MHz - Part B - Satellite Signals

Part B - Satellite Signals

  1 The technical characteristics of the transmitted signal and the message format should be in accordance with the requirements of the COSPAS-SARSAT System document C/S T.001.

  2 Provisions should be included for storing the fixed portion of the distress message in the satellite EPIRB using non-volatile memory.

  3 A unique beacon identification code should be made part of all messages.

This identification code should include a three-digit code for the country in which the beacon is registered, followed by either:

  • .1 the trailing six digits of the ship station identity in accordance with appendix 43 of ITU Radio Regulations; or

  • .2 a unique serial number; or

  • .3 a radio call sign.

Preference is given to method .1.

  4 The 121.5 MHz homing signal should:

  • .1 have a continuous duty cycle, except that it may be interrupted for up to a maximum of 2 s during the transmission of the 406 MHz signal; and

  • .2 with the exception of the sweep direction, meet the technical characteristics of appendix 37A of the Radio Regulations. The sweep may be either upward or downward.

Parent topic: Annex - Performance Standards for Float-Free Satellite Emergency Position-Indicating Radio Beacons (EPIRBs) Operating on 406 MHz
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