Over the weekend I stumbled across a Yaesu 8900R and Comet UHV-4 antenna for sale locally on Craigslist. It was a good price so I bought it. The seller demonstrated it working and everything, but he had it mounted in his car. But I want to run this in my house as my commute to work is very short and I will get more use out of it in my house. I know its not the ideal antenna for mounting at home, but free is about as cheap as it gets. So here is my question: If I mount this antenna on a mast behind my house, do I need to isolate the antenna mount from the mast? Also, does any part of the antenna need to be grounded to work? Sorry if this question has already been answered. I have been googling since Sunday and have not found exactly what I am looking for. Thanks in advance for your help.