Thanks for all the views, but I will explain what PMR446 is incase it is the reason for no replies;
From Wikipedia:
PMR446 (Personal Mobile Radio, 446 MHz) is a radio frequency part of the UHF range that is open without licensing for personal usage in most countries of the European Union. It has roughly the same use as FRS or GMRS in the United States and Canada. Depending on surrounding terrain range can vary from a few hundred meters (in a city) to a few kilometers (flat countryside). PMR446 is primarily used in consumer-grade walkie-talkies similar to those used for FRS/GMRS in the United States and Canada.
PMR446 usage is not generally legal in the United States; however, the standard allocation is within the range of the 420-450mHz band allocated to US amateur radio operators and in practice could be used under FCC amateur regulations. The conflicting allocations have been something of a nuisance to US amateur operators due to use of the gear by European tourists in the US.
Many thanks