Visitors and island residents, some of whom go back seven generations, instead use VHF marine radio.

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Remains chairman and chief executive of GMA, which has 46 VHF stations and 26 radio stations.

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Mr Matthews said kayakers should also carry a VHF marine band radio to call the coastguard on channel 16 if they get into difficulty.

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They are constantly on the VHF reminding everyone of their presence.

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The rescue came a day after the same crew went aground on the Foulness Sands without charts, flares or a VHF radio, and reported themselves lost.

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After the bridge came down, Leekley sent out a Mayday signal over VHF radio, but hearing no response, he got on the phone and dialed 911.

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During this time, Captain Seog, despite his injuries, managed to send out an urgent message via VHF, warning the boarding party that there were three pirates at the steering wheel.

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When the Coast Guard C-130 aircraft arrived on scene they dropped a load of rations and a VHF marine radio, which the boaters used to confirm they were all safe.

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