Things You'll Need
Instructions
Locate the center insulator mounted to the antenna assembly. Use a crescent wrench to unscrew the coaxial cable from the insulator.
Remove corrosion and oxidation build-up from the insulator. Use a fine-grade piece of steel wool to remove the corrosion and mineral deposits on the aluminum sections of the insulator.
Pour one part vinegar and one part rubbing alcohol into a small mixing bowl. Mix the solution together with a wooden stick. Soak a clean wash cloth in alcohol solution for about 30 seconds.
Wipe down the insulator thoroughly with a dry cloth. Let the insulator dry for about 20 minutes, then reconnect the coaxial cable to the insulator.