You’ll need a cable that connects your computer (usually via USB or Serial) to the mic jack on the front of the Operating System:

The GM160 offers a level of customization that modern "entry-level" radios lack: Signalling : It supports complex signalling like Select-5 (5-Tone)

Software is useless without the right physical connection. The GM160 uses a proprietary 16-pin accessory connector on the rear. To interface this with a modern PC, you need two things:

Map the programmable P1-P4 buttons to functions like Scan, Monitor, or Repeater Talkaround. Selective Signaling:

. The USB cable must be assigned to a low COM port number (usually COM1 through COM4) for the older software to recognize it. Codeplug Errors : Never start from scratch. Always

Pro tip: If you buy a RIB-less cable, look for one with the chipset. The newer FTDI chips often have driver issues with this old 16-bit software.