| Software Version | Notes | | :--- | :--- | | | Reported by a user as a specific version previously used for GM339 programming. | | R03.08.03 | Supports GP/GM300 Series 5-tone radios, including the GM339. | | R03.10.03 | Known to work with GM339 and many other models. | | R06.06.07 | Mentioned in forums as a potential version for Professional Series radios. |
A Windows-based PC (Windows 7/10/11) with a USB port.
: Never modify a radio configuration without creating a backup file first. If the programming process fails, the backup allows you to restore the radio to its original operating state.
The software will display a progress bar as it downloads the "codeplug" (the configuration file). motorola gm339 programming software
Programming a Motorola GM339 is a task that requires patience and attention to detail, but it is achievable. The key challenges lie in and securing a reliable USB RIB-less programming cable . By following the steps in this guide—reading and saving the original codeplug, making careful edits, and methodically troubleshooting any issues—you can successfully configure your GM339 for any frequency, tone, or setting within its capabilities. While the software may be elusive and the hardware specific, the reward is the full command of one of the most robust mobile radios ever built.
Connect the RJ45 end of the cable to the radio's microphone port. Plug the USB/Serial end into your computer.
If anyone has a verified working CPS version number or a trick for USB-serial adapters on Win10/11, feel free to chime in. | Software Version | Notes | | :---
Motorola GM339 mobile radio is programmed using the Motorola Professional Series Customer Programming Software (CPS)
Whether you're a seasoned radio operator or just starting out, the right programming software and resources can significantly enhance your experience with the Motorola GM339. Always approach modifications with caution and ensure you're in compliance with relevant laws and regulations.
: You need a specific USB or serial programming cable with an RJ45-style (8-core crystal head) connector that plugs into the radio's microphone port. RIB vs. RIBless RIB (Radio Interface Box) | | R06
The GM339 allows you to group channels into "Zones" for easier navigation via the front panel buttons.
A computer serial port connected to a RIB, which then connects to the radio’s microphone jack via a specific cable. The Modern Way:
: Programming a radio can be complex, and incorrect settings can affect the radio's performance. Make sure to follow the software's user guide or any tutorials closely.