The Motorola GM338 is a legendary commercial-grade mobile radio. Known for its rugged build, clear audio, and reliable performance in the VHF (136-174 MHz) and UHF (403-470 MHz) bands, it remains a staple for off-roaders, truckers, and public safety volunteers. However, as this radio is discontinued, programming it has become a significant challenge for new users.

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Posted by: Two-Way Radio Tech Team Last Updated: October 2023

Motorola does not offer this via automatic update. You must locate the patch file: Pro_CPS_R06.12.08_Patch.exe