City of Houston vehicular communications system

This paper is a general description of the radio communications system being used by the City of Houston, Texas. As early as 1926, the first experiments in the use of radio for police work in Houston made use of a commercial broadcast station, which interrupted regular programs when necessary. Today, communications and electronic work for most city departments is done by this agency, although the division is a section of the Police Department. The operation of three F. M. transmitters and receivers into a single antenna, and the problems encountered with intermodulation are outlined.