by G4RMT » Tue Oct 25, 2016 2:11 pm
Oddly - a few areas do have Airwave, but on a different system from the other emergency services - a VHF system, and the to talk to other services in emergencies, they use a back to back VHF to UHF device to get into the Government system. They do use the emergency service Airwave system on the Thames. I'm pretty sure (but 18 month old info) that they don't have any Airwave terminals them selves, but could use the sets of Police held emergency issue ones in certain circumstances.
I suppose one big issue is that Coastguard comms are designed for coverage outwards from land, and the Airwave system the reverse.