This line tells DOSBox to forward the emulated serial port directly to your physical port.
Depending on your specific cable version, you may need a physical RIB to translate the voltage levels between your PC and the radio. Newer "RIB-less" USB cables have this circuitry built into the USB housing. 3. Step-by-Step Software Installation Guide
If your PC lacks a native DB9 serial port, you need a high-quality USB-to-serial adapter. Look for adapters utilizing the FTDI chipset . Cheap Prolific clones often fail to maintain the strict timing required, resulting in bricked radios. 2. Essential Equipment Checklist motorola gm950 programming software install
Verify your COM port number in Windows Device Manager. Ensure no other software (like mouse drivers or sync utilities) is using that port. If using DOSBox, double-check your dosbox.conf mapping.
The Motorola GM950 is a legendary, rugged mobile radio widely used in commercial, amateur, and emergency communications. To customize its frequencies, signaling, and channels, you must use the proprietary Motorola Radio Service Software (RSS) or Customer Programming Software (CPS). This line tells DOSBox to forward the emulated
Connect the RJ45 end of the programming cable into the microphone jack on the front panel of the radio. Plug the serial/USB end of the cable into your computer. Turn on the radio.
Choose the COM port number that matches the mapping configured in Step 2 (typically COM1 or COM2). Cheap Prolific clones often fail to maintain the
A compatible 8-pin RJ45 cable (often shared with the GM300). Some versions use a Radio Interface Box (RIB) like the to convert signals. Operating System:
Once the software is installed, you must verify the connection before attempting to write any new frequencies or configurations to the unit.
Attempting to run the software on modern 64-bit systems like Windows 10 or 11 often fails because modern Windows lacks the 16-bit subsystem required to execute the original DOS installer, and USB-to-serial adapters can corrupt data transmissions.