Reminds me of some thieves who had stolen a great load of valuable electronics and other items here in Sweden, and put strong jammers in the house where they stored it.
Instead of hiding their location, this actually gave them away as it had been disturbing the GPS-coverage in this area. When the source of the jamming was found, the police was alerted and the thieves arrested.
thats profound. you bring up a good point that it will ow be fairly straight forward to map, find, and correct jammed (or low power) GPS signal.
i have long thought government postal carriers and other government vehicles should be required to stream realtime road congestion and traffic flow data.. this data could also show jammed or poor reception.
Instead of hiding their location, this actually gave them away as it had been disturbing the GPS-coverage in this area. When the source of the jamming was found, the police was alerted and the thieves arrested.