Water infiltration by TV antenna crank during winter storage

Assuming it is a standard Winegard antenna, it is important to lubricate the base of the antenna from time to time with a good silicon spray lube. Not only does this help in rotating and raising the antenna, but it keeps the rubber seal from drying and shrinking which becomes a source for leaks. If you don't have one, get a manual as it shows what, how, how often to lubricate what. They are downloadable at the Winegard website.