Well if you look at the CAA proscutions thread.
Someone got done using the mode S signature on a 7000 squawk when not talking to any ATS.
So it must be there if they can do that.
Also to note as well scottish info has always been very pro you uploading a photo and details into G info. Apparently this gives them loads of helpful info if the worst happens.
I don't know the coverage of mode S over the UK I suspect there are huge areas especially low level which arn't covered. If you got lost in the highlands below 3k you wouldn't be picked up these days now the maritime fleet has been put to rest. In times gone past you could be at the bottom of a glen and the transponder would be going 10 to the dozen with a mil rate of interrogation, now it doesn't flash at all.
Last edited by mad_jock; 1st September 2012 at 08:25.