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Did this issue ever get worked out?? I have a system doing the same thing.? Start from scratch and put frequencies in memory and works fine.? Later it looks like everything went to Tone Squelch because I can turn squelch all the OFF and the light shows there's audio, but nothing coming through the speaker.? Get on the repeater and as long as there is a good signal (like it sees the Tone Squelch signal) I get audio out.? Got nothing on HF also because there's no tone.? This is the 2nd time I've had to start from scratch and I just want to figure out how to fix it so it doesn't go to that mode any more.
ALSO......the menu does not show that it's on Tone Squelch.