Larry, (Wolcottville, IN)
But first check to make sure the antenna is mounted correctly to begin with. I've also seen wobbly antennas caused by worn gears. Winegard also offers a gear replacement kit that will probably help the instability problem caused by worn, old-style gears. You can tell if you have the older gears by inspecting the cranking rod from inside the RV. Remove the crank handle and spring by loosening the set-screw and take a look at the shaft that extends down below the ceiling. If the rod is round, it’s the older style; if it’s a hexagon shape, it’s the newer style. But first make sure the antenna is mounted and secured properly. The base should be securely attached to the roof and sealed properly to prevent water intrusion. The antenna mount must be secured to a solid portion of the roof. If it’s sloppy when fully extended, it’s likely to be the worn or loose gears. I'd suggest tightening the gear assembly first using the Winegard tool or a deep socket. If it's still wobbly, it's probably time for new gears.