crossbow, sp5it means well, and is very radio savvy, he just doesn't understand how to not sound like a dick when giving advice.
who knows, it may be a language thing, but he always comes across as a dick when he posts.
it's like the only things that motivate him to actually type are things that piss him off LOL.
as for the radio repair, oldtech03 has the best idea so far.
you are dealing with a thermally intermittent component, and freeze spray is the best way to find it.
if it were on my bench, the first thing i would do is isolate whether or not this is an RF problem or an audio problem. it sounds like you've already done that, but if not, use your sig gen to put in a really strong signal when the radio is 'acting up' and see if you can hear anything. im talking like 10K or 100K microvolts and see if you get any wiggle on the meter.
sounds to me like it's RF related. if so, map out the RF path into the radio starting at the antenna jack, and after the radio has warmed up and is working normally; spray each component on your list and see if you can make the radio go deaf again.
LC
