I just downloaded, installed, and used the updated GM-30 Software (V2.06) to update the firmware and programming of my three GM-30 radios. The new firmware allows you to save additional repeater channels with modified PL tones, so you no longer have to change it from the front panel. This makes the radio much more user friendly in my opinion, especially for those that use repeaters extensively.
I used the software to program 8 repeater channels with no PL tone, and 8 repeater channels with a PL tone, in addition to the other 22 channels. With the update, you are no longer limited to only 30 channels on which you can transmit.
The link below was provided by Radioddity on the radio's Amazon page: https://radioddity.s3.amazonaws.com/Radioddity_GM-30_Firmware%2020210402%20%26%20Software_V2.06_20210414.zip
