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Does SOB support DSC and what is the difference with AIS?

AIS difference DSC sob support
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Does SOB support DSC and what is the difference with AIS?

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SOB supports DSC via VHF. SOB will connect to a DSC radio and receive position reports from remote ship-borne DSC devices and plot them on the chart in real-time – in exactly the same manner as AIS targets are plotted. However the DSC messages don’t contain quite the same amount of information as AIS, but at a minimum you receive MMSI, lat/lng and any emergency DSC message sent, and depending on the make of DSC – on the ship-borne side – you can also receive SOG/COG, persons onboard, ship name etc. The DSC is proving to be an excellent way to track your own vessels in this use and avoids the need to fit AIS Transponders to such vessels. Refer to this simple schematic for setting up your equipment at each end.

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