Programming Software __exclusive__ — Motorola Gm339

Standard USB cables with FTDI chipsets are highly recommended for modern PCs to avoid driver issues.

[ Computer (USB/DB9) ] ---> [ Programming Cable ] ---> [ GM339 Microphone Jack (RJ45) ] The Programming Cable

Before opening the software, you need the proper physical connections to link your computer to the mobile radio. 1. The Programming Cable

The requires the Professional Series Customer Programming Software (CPS) for configuration. This software allows you to manage frequencies, signaling, and channel settings for the radio. Because the GM339 is part of the "Professional Series" (Warbis/Warari), it is typically programmed using versions of CPS such as R03.11.00 or later. Key Requirements for Programming motorola gm339 programming software

There is a common misconception that the Motorola Professional Series CPS works with the GM339. The GM339 predates native Windows CPS. If you try to use the newer CPS (e.g., for the CDM or HT series), the software will not recognize the radio’s cloning protocol.

Check your physical connections. Ensure the RJ45 plug is clicked securely into the mic jack. If you are using a cheap USB-to-Serial adapter, it may be dropping data bits; upgrade to an FTDI-based cable. Important Legal & Safety Notice

Test the radio with a companion device to verify successful transmission and reception. Troubleshooting Common Software Errors Standard USB cables with FTDI chipsets are highly

Ensure you have the required regional version to match your radio (e.g., LA for Latin America, AA for North America). Step 2: Connect the Hardware Connect the USB programming cable to your computer.

: Go to the top menu, click Comms or Setup , and select the exact COM port number identified in step 2. Reading and Backing Up the Radio Codeplug

The GM339 utilizes a microphone jack (RJ45 interface) on the front panel for programming. You will need an RJ45-to-USB or RJ45-to-DB9 (Serial) programming cable. The Programming Cable The requires the Professional Series

Configure PL/DPL (CTCSS/DCS) codes for squelch control.

: If the software can't detect the radio, verify the correct COM port is selected in the software's communication settings. Connection Errors

“The GM339 is a 99-channel, 25W radio often used in European fleets. The software is hard to find because Motorola locked it down — but if you get the right CPS, programming is straightforward via a standard Rib-less USB cable (aftermarket) with a MAX232 chip. The trick: Windows XP 32-bit or a true DOS VM. On Windows 10, the programming times out unless you slow down the USB polling.”

Check Device Manager to ensure your COM port matches the software settings. Re-seat the USB cable connections.

If you are looking to maximize the versatility of your , understanding its Customer Programming Software (CPS) is essential. This powerful mobile radio supports up to 255 channels and extensive signaling protocols, but to access these features, you need the right tools and a solid workflow. The Essential Toolkit To begin programming, you need three main components: