404 error (missing web page or file) - Maritime New Zealand
404 error (missing web page or file) - Maritime New Zealand
404 error (missing web page or file) - Maritime New Zealand
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transmissions that could interfere with the distress communications,and must maintain a listening watch on the frequency being used.Distress calls and distress messages should usually be sent only on theauth<strong>or</strong>ity of the vessel’s master <strong>or</strong> skipper, <strong>or</strong> the person responsible f<strong>or</strong>the station.Stations monit<strong>or</strong>ing distress communications should exercise great carenot to interfere with the transmissions of the station in distress <strong>or</strong> withother assisting stations.When MAYDAY is not warranted but urgency is required f<strong>or</strong> the safetyof the vessel <strong>or</strong> person, the urgency signal PAN PAN should be used.Distress and urgency calls and messages must be cancelled ifassistance is no longer required <strong>or</strong> when the incident is over.Distress procedureThe distress procedure follows this sequence:• alarm signal (if available)• distress call• distress message.These frequencies are dedicated to distress, safety and calling:• VHF radio distress calls, transmitted on channel 16• SSB distress calls, transmitted on 2182kHz, 4125kHz, 6215kHz,8291kHz, 12290kHz <strong>or</strong> 16420kHz.Alarm signalThe radio-telephone alarm signal is only used on single sideband (SSB)transmissions on 2182kHz, 4125kHz <strong>or</strong> 6215kHz (but not all SSB radiosare fitted with an alarm signal generat<strong>or</strong>). It consists of two differentaudio frequency tones, transmitted alternately, producing a distinctivewarbling sound.12 WWW.MARITIMENZ.GOVT.NZ
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