hey guys, sorry about the late reply, been in canada with work, still am actually, back friday though. Some good suggestions on here, going to try and find the best one for me and test a few, lets try and keep this thread going a little, if anyone else uses/finds any simlar equipment that can do the job (i mean nothing that you have to wire into the aircraft radios) then i'll be interested to know. I'll report back soon when i do a bit of testing in the next month or so, thanks folks!