Abstract: Disclosed systems and methods automatically control a vehicle mobile communication system that is usable to facilitate communication external to a vehicle from one or more portable communication units with which the vehicle communication system is in communication. Disclosed systems and methods incorporate devices and/or steps for measuring a geographic position of a vehicle; referencing information stored in a database regarding areas in the vicinity of a plurality of geographic reference points at which output from the vehicle mobile communication system may interfere with a fixed ground-based communication system; comparing the geographic position of the vehicle with the stored information and determining that output from the vehicle mobile communication system should be modified and automatically disabling/re-enabling the vehicle mobile communication system based on this determination.