I have a Dish pro 500 Twin with the 301 reciever. I was getting the message check connections and when I did I picked up a low signal off of 110 but not 119. Just a few minutes after this the screen changed and stated that Unknow Device Installed. Where should I start get this fixed. Also if I were to install the dish in a different location from where it is now is there a particular height it needs to be from the ground, could it be installed on the side of a house for example. Thks.