Motorola Gm339 Programming Software !!link!! Jun 2026

With everything installed, it's time to program your radio.

Alternatively, an old-school cable connected to an older PC or a high-quality USB-to-Serial adapter (such as one with an FTDI chip). Driver Setup

Change the port number in the CPS settings to match Windows Device Manager. Incorrect CPS version or region code. motorola gm339 programming software

"Unsupported Radio Codeplug" or "Codeplug Version Not Supported"

"RIB-less" USB cables are now common. These have the level-shifting electronics built into the USB connector, mimicking a COM port on your PC. Technical Challenges With everything installed, it's time to program your radio

: Save a copy of the original codeplug before making any changes. This allows you to restore the radio if a programming error occurs. Key Configurable Features Channel Management : You can program up to 255 channels , each with individual power outputs and channel spacing. Signalling

The GM339 uses a rear 20-pin accessory connector or the front mic jack (RJ45) for programming. A RIB-less (Radio Interface Box-less) USB-to-RJ45 cable is the most common modern solution. Incorrect CPS version or region code

Newer software iterations support Windows 10 and 11. If you are using older software on a modern PC, you may need to run the application in Compatibility Mode or utilize a 32-bit Virtual Machine (VM). Step-by-Step Guide to Programming the GM339

This occurs if you are using the wrong regional version of the CPS (e.g., trying to program an Asian market AZ radio with European MD software).