JRC has developed various types of public safety radio equipments, including modules that have a wide range of uses as the transmitter/receiver of public safety radio systems. The transmitter/receiver, ADDA converter, signal processor, and controller are included in one RFLSI which is mounted on a PC board together with the VCO and power unit to make a module. Digital signal processing achieves high neighboring channel selectivity. By putting the above functions in an LSI, the external shape and size could be made [width 25mm × depth 25mm × height 3mm], 1/10 the area of a PC board that has equivalent functions. A proprietary evaluation board for this module has been prepared, which can be used to make the development of transmitter/receivers quicker and more efficient.