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A standard handheld marine VHF, mandatory on larger seagoing vessels under the GMDSS rules A VHF set and a VHF channel 70 DSC set, the DSC on top A vintage (76–89) marine VHF radiotelephone. Marine VHF radio is a worldwide system of two way radio transceivers on ships and watercraft used for bidirectional voice communication from ship-to-ship ...
These antenna configurations are more common on merchant ships. A handheld amateur VHF radio transceiver ready for "maritime mobile" use on a 28' yacht. For VHF and UHF operation, one option is to mount a small Yagi antenna to a pole 1–2 m (3–6 ft) long and haul this to the masthead using a flag halyard. If the halyard is correctly knotted ...
Cutters normally identify themselves as "Cutter (name)". Boats identify themselves with the last digits of their registration number, for example, a Defender-class boat with the registration 25123 would be "Coast Guard 25123, while a 41-foot boat would be "Coast Guard 41345." Aircraft identify themselves by their number.
156–158 MHz VHF Marine Radio. 156.8 MHz (Channel 16) is the maritime emergency and contact frequency. 159.81-161.565 MHz railways [b] 159.81–160.2 are railroads in Canada only and are used by trucking companies in the U.S. 160.6–162 Wireless microphones and TV/FM broadcast remote pickup
For VHF, DSC has its own dedicated receiver for monitoring Channel 70, but uses the main VHF transceiver for transmission. However, for the user, the controller is often a single unit. [ 1 ] MF/HF DSC devices monitor multiple bands for distress, urgency and safety sécurité transmissions in the 2, 4, 6, 8, 12 and 16 MHz marine bands.
Radio transmitter with a label indicating it will identify any transmisssions from it as coming from "PF7297" using the ATIS protocol [1] The Automatic Transmitter Identification System (ATIS) is a marine VHF radio system used and mandated on navigable inland waterways in Europe for identifying the ship or vessel that made a radio transmission.
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