> spoofing GPS is significantly harder I recall seeing someone's project that did exactly that: transmitting at a very short distance a radio signal that spoo

> spoofing GPS is significantly harder I recall seeing someone's project that did exactly that: transmitting at a very short distance a radio signal that spoofed a number of satellites so that the GPS receiver would report completely bogus positions. Anyway, that would be unnecessary as I completely missed that the GPS receiver is connected through a serial port, therefore spoofing NMEA strings would be much easier.