Jamming during Joint Warrior in October 2011 was suspended after complaints from Western Isles fishermen.
Ofcom said signals would not be jammed if GPS was required by the emergency services.
They are the uppy bitsI'd say run for the hills, but I won't be able to find them!
This is what was doing the doughnuts over Scotland on Tuesday.Maybe a Global Hawk UAS?
The joys of Real Navigation - they cannot (yet) jam a map and compass!