Hello, terrorists! Is RNP (Required Navigation Performance) this easy to screw up? The title is misleading. There is no "airport satellite", rather they rely on GPS satellites to navigate in three-dimensional space. This does not bode well for RNP if some jackass trying to hide from his employer can screw it up. What happens if you're past V2 on an RNP departure and the jackass turns on his jammer? Pilots will really have to be on their toes if it's this easy to mess with. Associated Press: NJ man faces fine for disrupting airport satellite (Aug 9 2013) A New Jersey man faces tens of thousands of dollars in fines after regulators say he interfered with a satellite system at one of the nation's busiest airports while masking his whereabouts from his employer.The Federal Communications Commission said Gary Bojczak admitted he installed a jamming device in his company-owned pickup to thwart his employer's GPS.Bojczak surrendered the jamming device after his vehicle was stopped at Newark Liberty International Airport in August 2012.The FCC said the jamming device interfered with a new system that enhanced navigation signals that used GPS data to aid aircraft approaching, departing and on the ground. The system was undergoing testing at the time and was put into full service the following month. "signals that used GPS data to aid aircraft approaching, departing and on the ground" sounds a lot like the RNP system being implemented at many American airports.