Avionics
GPS Interference Concerns Arise over Cellular Network
Ligado now claims it has limited GPS signal disruptions to within a 500-foot diameter around transmission towers.

A group of 11 aviation organizations, including NBAA, HAI, and AOPA, have expressed concern about potential GPS navigation signal interference from a proposed broadband cellular communications network operating within frequency bands currently used by GPS. A prior attempt to implement a high-speed nationwide cellular network by Ligado Networks, formerly known as LightSquared, revealed signals from its cellular towers significantly disrupted aircraft navigation systems.