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VHF radio operators should replace routine channel 16 hailing with Digital Selective Calling (DSC) to reduce channel congestion and prepare for the eventual phase-out of channel 16 as a primary calling frequency.1:31 DSC uses the dedicated channel 70 to transmit a digital signal to a specific vessel’s Maritime Mobile Service Identity (MMSI) number, automatically switching both radios to a pre-selected working channel.15:36 Before initiating any call, operators must monitor the chosen working channel for at least 30 seconds to ensure it is clear.8:14 Common voice communication errors include using "over and out" simultaneously, which is contradictory, and adding redundant phrases like "do you hear me" or "do you receive me."2:29 When calling a station, limit the name repetition to two times rather than three, and wait at least two minutes between attempts if no response occurs.5:38 DSC also enables automated position requests and position sharing between vessels, provided the radios are configured correctly.1:53

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