Xm antenna

Do xm radio antenna go bad? I have one on my big rig so I can enjoy car talk where every I am but it keeps seaching for signal like every two minute than lose it and put the radio in demo mode.This happen on clear days This is the commerical type not the little magnet one Help

The antennae itself shouldn’t, but the connections might get a bit wonky. Check them out. I’m a fan if dielectric grease for damp installations, so a touch of that in the connectors can’t hurt, and can help sometimes.

Does it have trouble picking up ALL the Sirius stations or just certain ones?? If poor reception on all stations, I’d say you have a connector or antenna problem…I have enjoyed Sat Radio for years using the small, flat, mag-mount antenna without any problems…