1. A radio frequency triangulation object location method for identifying the location coordinates of predetermined known geographical locations within a data base region wherein signals are transmitted via a vehicle unit for reception via at least three antennas, the method comprising the steps of: positioning the vehicle unit at each of the known predetermined geographical locations within the data base region; transmitting signals for reception by the antennas from the vehicle unit at each of the predetermined geographical locations; and determining base location coordinates for each of the known predetermined geographical locations within the data base region in response to the signals transmitted via the vehicle unit at each of the predetermined geographical locations, wherein the signal strength of the signals received by each antenna exceeds a predetermined minimum level.