I bought it used from a guy, so i doubt itis under warranty, i think its a couple years old, worked fine scince this past fall, put it away for a while and just got it back out( set up a new area for equipment) and got it all set up, worked fine for a week then the other night on 273850 lsb with local contacts, all of a sudden couldnt tune them in. Was hearing them in cw mode. Then today ivfound if i tuned down to 273824 it was right on both xmit and recieve. Seems like it also might be drifting back and forth. Although in 10 meters usb seemed right on