DRC-1/32 Single Channel Desktop Radio Control Unit Radio the DRC-1 is a powerful and unique communications controller, which can control base stations from all the leading manufacturers. This is achieved with the user selectable, line control protocols. Similarly, both standard and unique selective calling formats can be user defined, meaning the DRC-1 can accommodate customer specific requirements with the minimum of effort. The DRC -1 control unit is housed within an ergonomically designed compact and robust case with a 37 button keypad, a 2 x 20 character LCD and is complete with a telephone-style handset and external power supply unit.