Connect the RJ45 end of the cable to the microphone jack on the front of the GM950.
This is the most critical step. Your modern computer's USB port must be passed through to the VM as a serial port.
To recap your success path:
: If using a standalone RIB or certain DB9 programming cables, a 9V battery or DC power adapter may be required to power the interface. 2. Software Environment Setup motorola gm950 programming software install
Are you using a or an older DB9 serial cable ? Have you already acquired the GM950 software files ? Share public link
: Most modern users use a USB-to-RJ45 programming cable . These often use FTDI or similar chips that require specific drivers to appear as a Virtual COM Port .
: Following the prompts will create a new program group in your legacy environment with a single icon to launch the RSS. 4. Connection & Configuration After installation, bridge the software to your hardware: COM Port Settings Connect the RJ45 end of the cable to
Open the DOSBox installation folder (usually in C:\Program Files (x86)\DOSBox-0.74-3 ). Locate and open the dosbox.conf file using Notepad. Scroll down to the [serial] section.
The Motorola GM950 is a legendary, rugged mobile radio widely used in commercial, amateur, and emergency communication setups. To configure frequencies, privacy codes, and button functions, you need to use the proprietary Motorola Radio Service Software (RSS) or Customer Programming Software (CPS).
With the environment configured, you are ready to launch the software and interface with your Motorola GM950. Step 4.1: Mount the Directory in DOSBox To recap your success path: : If using
DOS programs are notoriously picky about memory management.
Assign functions to the front-panel programmable buttons if needed. Step 3: Writing to the Radio
IBM ThinkPad T42/T60 with native serial port is ideal.
Powered by a stable 13.8V DC power supply. Never program a radio powered by a weak battery or unstable power source.
Configure squelch types (CSQ, TPL, or DPL) to match your local repeater or simplex requirements.