The TCA, FM1674, series of local base stations is designed to meet the requirements of the radio telephone operator, for a locally controlled station of pleasing appearance, small size, and simple in design and operation. The station unit consists of a sheet metal cabinet measuring 21 - V 4 " W x 13-V2"H x 15-V4"Deep, furnished in a gray Hammertone Oven baked enamel, with a recessed front control panel, on which are logically grouped the various controls necessary to operate the equipment. All controls and indicators are designated clearly with photo etched lettering. A practical feature is the provision of a Speech level indicator, which clearly shows the operator the required level to speak into the microphone to obtain maximum usage of the system. The whole of the radio telephone unit may be withdrawn from the front of the cabinet to provide access for servicing. A metering socket is provided on the back of the assembly to meter all essential circuits. The station unit follows the standard practice of the 1674 series of equipment where the necessary sub assemblies are grouped together to provide radio telephone stations capable of delivering various R.F. power outputs to the antenna and to be supplied from either AC mains or from a battery as required.