I just installed the jack antenna that I bought last month. It's the one that goes on the mast and replaces the batwing. I was leery about getting up on the roof and a friend with an RV told me to do it from a 10' step ladder. I said how? What you do is crank the antenna up and point it so when you lower it, it will be over the side of your coach. Climb up the ladder and 15 min later you are done. Maybe klonger if you are like me and take it off and turn it around a couple of times. But it's pretty easy. I posted pictures on other forums showing it. I aslo added a rubber bumper on the mast to keep it off the roof.