A system and method are provided for controlling access to a wireless network by a remote terminal in a restricted frequency band in accordance with authorization conditions defined by geographic location. The remote terminal has a geographic self locating capability from which a location specifier is generated. The location specifier is compared to a geographic zone map which has information pertaining to conditions for authorizing communications in the restricted frequency band for various different geographic zones. Depending upon which geographic zone the remote terminal is in or nearby, power level, and time period of communication vary.