Originally Posted by Lloydg
The Jack antenna has no exposed cable so no UV concerns. You would also need a tube of self leveling Dicor which now runs about $11. If CW were close enough, I'd still opt to let them install it for $39 and if there are any unforeseen issues, let them deal with it. You just never know how an easy job can get completely fouled up.
If you get the Jack Sensar replacement head only it does have exposed wires. It still uses the same mast as the Sensar. If you opt to get the full set up with the stubby/non crank up mast, then there us no exposed wires.
For the full set up, the $39 is worth it, for the replacement antenna head, get your but up there and do your other maintenance/check ups while you are there.