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The purpose of this paper is to discuss the design, construction and operation of the proximity vehicle locator system prototype developed for the Orlando Police Department. The objective of the project itself was to provide the O.P.D. with a simple but effective system by which constant surveillance of patrol car locations could be maintained, thus improving the department's operational efficiency. Each unit designed specifically for use in this project will be discussed in some detail, while those purchased locally for use in the project will be only briefly described, as pertaining to their functional importance to the system. In addition, some of the problems encountered in the realization of the system as a working model will also be briefly recounted.