Run the CPS Setup: Execute the installer. If prompted, select the "Run as Administrator" option to ensure the software has permission to access the COM ports.
Click the 'Read Device' icon. This backups your current configuration. Always save this original file as a "factory default" backup.
Identify the COM Port: Open your Device Manager to see which port (e.g., COM3) your programming cable is using. Programming Your Motorola GM338 Run the CPS Setup: Execute the installer
Power on the radio and connect it to your PC via the programming cable.
Expanded Frequency Limits: Some repacks include "wideband" patches that allow for programming outside the factory-default frequency ranges. This backups your current configuration
Install the USB Drivers: Before plugging in your radio, install the included serial-to-USB drivers.
Pre-Patched Drivers: Includes updated Prolific or FTDI drivers to prevent the common "Code 10" error on Windows 10/11. Programming Your Motorola GM338 Power on the radio
Before initiating a download, it is crucial to understand that the GM338 belongs to the Motorola Professional Radio series (often referred to as the Waris platform). This means it requires the Professional Radio CPS rather than the software used for the newer MOTOTRBO digital lines. Key technical specifications for the software include:
In this exclusive guide, we explore the repackaged versions of the Motorola GM338 programming software, ensuring you have the tools necessary to manage your radio fleet efficiently. Understanding the Motorola GM338 Software Requirements
Connection Type: Requires a USB-to-7-pin programming cable or a RIB (Radio Interface Box) setup.