I have a 2510 that has been sitting because it wasnt working I hooked it up tonight and it worked great for about 1 1/2 - 2 hours then it didnt work again had no output power I could hear it in a monitor radio audio wise but as far as operation to the locals I was talking to it just fell on its face but recieve was fine . Anyone have any ideas whats going on with this radio??? Everyone said it sounded great so I figured it was working and while talking I looked up and guess what no meter movment as far as audio or power