The Motorola GM338 is a legendary "workhorse" in the world of Professional Radio (PMR). While it is built like a tank, its versatility depends entirely on its configuration. To unlock features like selective calling, scanning, and power levels, you need the Customer Programming Software (CPS).
: Open the CPS software, select the correct COM port, and click "Read Device" to back up the existing configuration (Codeplug) before making any changes. Configure Frequencies : Navigate to Conventional Personality . Enter your desired RX and TX frequencies. Set CTCSS/DCS (Privacy Codes) if required.
For many users, finding the can be a challenge. While official software is typically licensed, community-driven "repack" versions (often referred to as GM338 CPS or Professional Radio CPS) are frequently used to manage these legacy devices. This guide explains how to find the software, the required equipment, and how to program your radio safely. What is the Motorola GM338 Programming Software "Repack"?
Always click the "Read" button and save the original file (the "codeplug") before making any changes.
Do not use a codeplug from a different radio model, as this can corrupt the GM338's firmware, rendering it a "brick." motorola gm338 programming software free repack
Motorola GM338 programming software is a tool used to configure and customize the radio's settings, such as channels, frequencies, and tone settings. The software allows users to create and edit radio configurations, upload and download data to and from the radio, and troubleshoot issues. The official software is typically provided by Motorola or authorized dealers, and it may require a license or subscription to use.
Many sites offering "free repacks" host malicious executables, adware, or trojans that can compromise your PC. Always scan downloaded files using verified antivirus software.
or CPS installer. If Windows flags it, click "More Info" then Run Anyway Set Directory: It is recommended to install to the to avoid permission issues common with older radio software Hardware Connection: Connect the to your PC using a RIB (Radio Interface Box) ribless USB programming cable RadioReference.com Forums 3. Programming Best Practices Read Before Write:
Running the executable file in (set to Windows 7). Launching the software explicitly as an Administrator . Step-by-Step Programming Guide The Motorola GM338 is a legendary "workhorse" in
What or issue are you currently facing, if any?
: A specific CPS programming cable (RJ45 to DB9 or USB) is required to connect the radio’s front microphone port to your PC.
Right-click the program shortcut, select Run as Administrator , and double-check your Windows compatibility settings.
The safest way to run any repack is inside a using VirtualBox or VMware. The GM338 software was written for XP. Running it natively on Windows 11 invites instability. Install the repack inside the VM. If the VM gets a virus, your host PC is safe. : Open the CPS software, select the correct
A standard Windows PC is required. If running an older repacked software version, you may need to run the application in for Windows XP or Windows 7 and execute it as an Administrator. Step-by-Step Programming Guide
The software mentioned above.
Complete Guide to Motorola GM338 Programming Software Repack
Locate a trusted archive or radio community forum (such as RadioReference or specialized Motorola enthusiast blogs) to download the repack. Extract the ZIP or RAR archive to your local hard drive. 2. Install USB Cable Drivers