Following on from this discussion ... is it known to what altitude the 'electronic fog' might affect an aircraft's equipment? I'm researching the vulnerabilities of GPS for a security project and am trying to get a handle on the risk of interference.
There was a post in a thread in 2002 ('GPS jamming over most of UK') which mentioned a faulty GPS receiver jamming all other receivers nearby. A brief web search suggests that any Government road toll scheme would motivate many car drivers to use GPS jammers - to avoid being tracked.
Would this 'electronic fog' in the L-band affect all aircraft, perhaps, or only at aerodromes close to motorways? Can anyone offer some suggestions?
Then there is the possibility of GBAS being tripped by 'electronic fog' near its GPS receivers ...
thanks