There's quite literally a multitude of things that could be wrong here. Are you sure it's not a case of user error? What antenna(s) are you using?
Did you check things like WWV at 10mhz or trying to hear 20m during the day? You're really not saying much about what you have done to assume that something is amiss. What time(s) of day or nite are you trying? Try to be a little more specific about what you are doing here...Mike
I can here all the Hf spectrum except for that area. I can here WWV on 20, 15, 5, and 2.5 bot not 10. I dont recieve any thing from 15 - 8 megs at all. The noise level isnt even what it should be. Its almost as if that portion just quit. Im running it mobile durring night time and day time operations at verious different time periods on a non-consistant basis. Also I use a Chameleon Antenna.