OpenGD77

I'm finding the noise isn't noticeable when keeping the brightness at 30%, and that's even a little brighter than I keep other rigs with similar monochrome displays -- like the ID-51A and FT2DR. So, no worries here.

Exact same issue here. Just bought the rig earlier this week from Amazon. It shipped with the current official firmware, v4.2.8. If the backlight is on, I get the same hum/motorboating as the others have demonstrated in their sound files. Both FM and DMR. Internal or external mic, doesn't matter. Tu...