Technically, observers need a 'restricted radio licence' to transmit on a VHF frequency air to ground radio. In the past, Basic Observers Courses used to teach and award observers with such qualifications. We've got two working here. It seems to have slipped thru the cracks recently though. If one has to talk to other a/c OR coastguard for instance, one needs that licence.
On the main issue:
I don't think many Observers are aware this thread is going on! Spread the word so that this subject gets as wide a hearing as possible.
I hope it works out for you 442. Most people only see the up side of your job, very few have read the fine print when it comes to a situation like this. And it won't be the last... I wonder how the yanks handle it..because another of their EMS cabs has just gone in!
Carpe Diem!