What channel must you monitor with vhf radio?
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When operating your vessel with a VHF radio what channel must you monitor?
Asked in Radio
Which vhf marine radio channel should be used to make a mayday call?
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The first TV's only had a VHF tuner. Since radio used up the frequencies allocated to TV channel one, TV's started out with channel two and went up to channel thirteen. It wasn't until several years later that the UHF band was added (Channels 14 through 83) and when they did that, channel thirteen was dropped from the VHF band and used for the UHF to VHF conversion.
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Asked in US Navy History and Traditions
A captain of a ship speaks to another captain at sea using?
A VHF radio ordinarily, although maritime ship to ship communications can also be made using a HF (ssb) radio and commonly nowadays, via a INMARSAT sat phone. The latter two being when VHF (line of sight) is out of range. In most cases, communication between vessels at sea is for safety or collision avoidance purposes, and so the line of sight range of VHF (15 - 25nm depending on antenna height) is normally used. Initial contact by the hailing vessel is made on channel 16, before switching to a ship to ship working channel such as channel 6 or 9.