Originally Posted by Jon Brooks
US radio's are not approved for anything oither than fitting to a US vessel.
They have their own class of DSC for domestic vessels (those not leaving US waters) this is a lower class than class D.
Also channels will be missing.
Dealers here should not add the channels as they could be fined.
Most will tell you to go away as would we.
Most of the better radios here in the US have selectable US/Int'l channel ranges. I don't know specifics on differences, but you could get that from the manufacturers' websites, I'd bet. So unless you have UK-specific channels, odds are that you'd be covered on that subject.