Never program a radio using only a battery if it’s a mobile unit. Ensure the GM339 is connected to a stable 13.8V DC power source . Step-by-Step Programming Process 1. Installation
Install the CPS software on your workstation. If you are using a USB cable, plug it in and check your to identify which COM Port (e.g., COM3) has been assigned to the cable. 2. Reading the Radio Connect the cable to the radio's microphone port. Turn the radio on. In the software, go to File > Read Device . motorola gm339 programming software
This often happens if the version of the software is older than the firmware currently on the radio. You may need a newer version of the CPS. Never program a radio using only a battery
While Motorola has moved toward the MOTOTRBO digital line, the GM339 is prized for its and its Full Keypad Mic compatibility. It excels in complex analog environments where specific signaling (like caller ID or remote stun/kill) is required. Installation Install the CPS software on your workstation
To successfully connect your GM339 to a PC, you need a specific hardware chain:
If the radio fails to power up after a write, it may have a corrupted codeplug. Attempt to write your "backup" file to restore it. Why Is the GM339 Still Popular?