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202. On Scene communications are usually initiated using what equipment?
On-scene communications are initiated via a voice distress/safety call on VHF Channel 16, the international calling and distress channel, as mandated by SOLAS Chapter IV. EPIRBs transmit distress alerts via satellite, SARTs provide radar location, and VHF Channel 70 is used for Digital Selective Calling (DSC) alerts, which are followed by voice communication on another channel.
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