Motorola Cm340 Programming Software Work
Save the original codeplug (File → Save As → give it a name like CM340_original.cpg). Never skip this step.
Edit parameters using the tree menu on the left:
Write to Radio: File → Write Device. The software will:
Assuming you have acquired a copy of Commercial Series CPS R05.16, here is exactly how to make it work on a Windows 10 or Windows 11 PC.
You cannot simply plug the radio into a standard USB port on a modern laptop. The CM340 predates the USB standard for programming.
Yes – absolutely. But it is not plug-and-play. It is finicky, outdated, and requires patience. The software works perfectly once you:
The CM340 is a workhorse radio, and with the right software setup, you can unlock its full potential—customizing channels, tones, and power levels to suit your team’s needs. If you cannot get it working, consider hiring a two-way radio shop: they will program your CM340 for $15–$30 per radio, saving you hours of driver headaches. motorola cm340 programming software work
But for the dedicated owner who wants full control, understanding how the Motorola CM340 programming software works is the gateway to professional-grade radio management.
Have you successfully programmed a CM340 with a specific cable or OS? Check the comments on our forum for user-tested setups.
Motorola CM340 Go to product viewer dialog for this item. , part of the Commercial Series, requires specific Customer Programming Software (CPS) and a compatible cable to function correctly. The most commonly used software version for this radio is the Commercial Series CPS (often part number RVN4191). Essential Requirements To program your , you will need the following setup:
Software: Commercial Series CPS (e.g., version R05.16 is often recommended for its broad compatibility with wide and narrow band settings).
Programming Cable: A USB or RS232-to-RJ45 (8-pin) cable that connects to the front microphone socket or the rear accessory connector.
Pro Tip: Cables like those from Unicom Radio or vhbw on Amazon are typically plug-and-play and don't require a separate Radio Interface Box (RIB). Save the original codeplug (File → Save As
Operating System: While the software was originally designed for older Windows versions (XP, 7), many users have successfully run it on Windows 10 and 11 using compatibility mode or specific USB drivers. Step-by-Step Programming Guide
To program the CM340, you will need the following components:
Motorola Commercial Series CPS (often EMEA versions like R05.16). This software is proprietary and usually purchased through a Motorola dealer, although it may be found on older forums or specialist websites.
A CM340-compatible programming cable. While it uses a similar connector to other Motorola radios, it is recommended to use a high-quality, shielded USB or Serial cable, as USB alternatives can be unreliable. A Windows-based PC. Power Supply:
A 12V-13.8V regulated power supply to power the radio during programming. 2. The Programming Process Install Software: Install the Motorola CPS on your computer. Connect Hardware:
Connect the programming cable to your computer's COM port (or USB port) and the microphone port of the CM340. Turn on the 12V power supply to the radio. Read Radio: Edit parameters using the tree menu on the left:
Open the software, select the correct COM port, and click "Read Device" (or press F2). This fetches the current "codeplug" (configuration) from the radio. Edit Data:
Modify the frequencies, CTCSS/DCS codes, power levels, and channel spacing in the software. Write Radio:
Click "Write Device" (or press F8) to push the new configuration back to the radio. 3. Key Technical Considerations
The Motorola CM340 is a commercial two-way mobile radio commonly used in business, industrial, and public service fleets. Programming software enables technicians to configure channels, frequencies, signaling, scanning, power levels, and advanced features to match organizational radio plans and regulatory requirements. This paper explains how the programming software is used, key settings, typical workflows, and operational considerations.
If you own an original Motorola cable with a DB9 serial connector, your laptop likely lacks a COM port. You’ll need a USB-to-Serial adapter (again, FTDI-based is best). Set the adapter to COM port 1, 2, 3, or 4 (the software often refuses higher numbers like COM8).
