In reply to Ridge:
> Can't see us there, but interesting it does go on.
I would be rather surprised if a company was allowed to play with jammers. Outside of the military and possibly specialist research it would be rather hard to justify considering what you can bugger up. GPS is used in lots of unexpected places nowadays eg as the source of timestamping in random bits of kit.
That said illegal use isnt unknown. local area jammers arent that expensive and can be brought of the internet. Handy for anyone wanting to knock out car security devices or simply drive their lorry without worrying about the boss being able to observe them.
On the downside devices to identify jammers are becoming available. Not sure if what use is made of them. I think if you regularly jammed signals someone would probably come for a chat.