Change the line to match your active Windows COM port: serial1=directserial realport:com3 (Replace "com3" with your actual Windows Device Manager COM port number). Step 3: Run the Software Launch DOSBox. Mount your directory by typing: mount c c:\motorola Switch to the virtual drive: c:
This happens when running DOS software in a modern terminal. Adjust your DOSBox video emulation settings to surface or overlay .
Place your GM350 software files into a folder (e.g., C:\GM350 ). In DOSBox, use: mount c c:\gm350 . Run the Executable: Run the .exe file (usually gm350.exe ). Important Programming Tips
Older DOS-based RSS typically requires a physical RIB to manage signal levels, though some newer "RIB-less" cables integrated the circuitry into the USB housing. Motorola Gm350 Programming Software Download
Disclaimer: Motorola, GM350, and Professional Radio CPS are trademarks of Motorola Solutions, Inc. This article is for educational purposes. Always use licensed software and respect intellectual property laws.
Most local two-way radio shops will program your GM350 for a small fee (typically $25–$50 per radio). They have the legal software and the experience. While this doesn’t give you the software for download, it is often the most cost-effective solution if you only have one or two radios.
If the software starts in a foreign language, delete the file in the application folder. The software will revert to English on the next launch. Finally, be aware that many clone USB-to-serial cables use defective Prolific chipsets, which can cause sudden "Access Denied" errors. An FTDI-based cable is strongly recommended to avoid this. Change the line to match your active Windows
Use an emulator like DOSBox on a modern PC, mapping a USB-to-Serial adapter to a virtual COM1 port inside the emulator settings. 🛠️ Step-by-Step Programming Instructions
How to Program Motorola Two-Way Radios (CPS & MOTOTBRO Guide)
The GM350 utilizes an RJ45 plug (similar to an ethernet connector) plugged directly into the front microphone jack of the radio. Adjust your DOSBox video emulation settings to surface
You cannot program the GM350 using a standard USB cable plugged directly into a modern PC. You need a specific hardware chain:
Writing incorrect codeplugs or experiencing a power interruption during data transfer can "brick" your radio, rendering it permanently unusable.
on his workbench. It was a relic, a brick of rugged plastic and solder that had outlived the fleet it once served. His task was simple: reprogram the old girl for the local search-and-rescue team. But the software was a ghost.