Gm339 Programming Software Updated: Motorola

Set TPL (CTCSS) or DPL (DCS) tones if your network uses repeaters or privacy codes.

: Set channels to High Power (typically 25W–45W depending on the model) for long-range communication or Low Power (1W–5W) for localized site use. 3. Signaling Schemes (5-Tone / MDC1200)

Run the installer executable for the Motorola Professional Radio CPS on your Windows PC. Follow the on-screen prompts. (Note: Older versions of this software run best on Windows 7 or Windows 10 in "Compatibility Mode"). Step 2: Connect the Hardware Turn off the Motorola GM339. motorola gm339 programming software

Would you like help identifying which matches your GM339’s firmware, or how to build a programming cable yourself?

Configure PL/DPL (CTCSS/DCS) codes for squelch control. Set TPL (CTCSS) or DPL (DCS) tones if

To program a mobile radio, you need specific Customer Programming Software (CPS), a compatible interface cable, and a computer running Windows. This radio supports up to 255 channels and extensive signaling features like 5-tone and PTT ID. Required Equipment

If using a USB cable, ensure it uses a high-quality chip (like FTDI or Prolific). Cheap clone chips often suffer from driver errors on Windows 10/11. Signaling Schemes (5-Tone / MDC1200) Run the installer

Open Windows Device Manager , expand Ports (COM & LPT) , and note the assigned COM port number (e.g., COM3).

The exact from the back of the radio (to confirm the frequency band)

Navigate the left-hand tree menu to . Click on a personality number (or add a new one).