Ian Waugh - A Mariner\'s Guide to Marine Communications

you can usually send your message as soon as you've finished typing it or you can put a 'delay' on the message, allowing you to ...

'regional' (like Thuraya - see Chapter 8), and provide service in the waters in a particular region only. Other systems are cons ...

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g "ill' '" J IL-....<L-__ ----'.J ,-'\, Figure 4.2 Inmarsat - individual satellite spot-beam coverage 72 THE NAUTICAL INSTITU ...

Questions from Chapter 4 1 In ALRS Vo. 6 - where Pilot/Port Authority 'Frequency' shows Hi 12; 11 13 - what is the preferred cal ...

Chapter 5 DISTRESS, URGENCY AND SAFETY COMMUNICATIONS FOR SEA AREAS AI, A2, AND A3/A4 THIS CHArTER EXPLAINS HOW TO USE YOUR GMDS ...

Note I : Where NAVTEX service is available, initial shore-to-ship alerts will be sent using that service in addition to the DSC ...

Bear in mind that DSC controllers use different procedures for composing the alert (e.g. to change the nature from undesignated ...

Action Onboard Vessels Receiving a VHF DSC Distress Alert The DSC Distress alert received onboard Wizard might appear on screen ...

Response Flowchart: (the flowchart is based on IMO COMSARlCirc.21 dated 25 January 2000, which seeks to reduce the number of err ...

Note I - If you are in range of a VHF DSC Coast Station/MRCC (Sea Area AI) you should receive the Coast Staton/MRCC DSC Distress ...

The DSC Distress Acknowledgement is an 'All Stations' call, and will be received by all vessels in the vicinity (not just by th ...

Your Distress Alert will include, as a minimum: Your vessel's MMSI. Vessel position. The word 'undesignated' (as the 'nature of ...

MRCC - followed by the Coast Station/MRCC voice acknowledgement on 2182kHz. If the vessel in distress is outside of Sea Area A2, ...

I DSC Distress Alert received on 21!!7.skHz I I Listen on 21!!2kHz for 5 minutes I Has the DSC Distress Alert, or voice Distress ...

As in the earlier 'AI VHF' example, Wizardwould 'Acknowledge by voice', on 2182kHz, after the Coast Station had acknowledged. If ...

Once your information is passed to the Coast Station/MRCC, regardless of method used - you should then attempt to alert vessels ...

When the MRCC answers, your distress call and message should follow the same format as a radio call/message - but substituting y ...

Once connected to the telex machine at the MRCC, you will receive their 'Answer back' and 'GA+' (which means that the MRCC is re ...

Author's explanation: If the master decides that the vessel is in distress, but does not have time immediately to type and send ...