Dish was installed when i bought the house. In the process of getting all coax cable off the side of the house putting it in the crawl space and comming up in a wall. On one side of the house there is a block with 2 pieces of coax comming from dish and 2 pieces leaving going to 2 different rooms but theres a piece of #12 green comes off this block and is stuck in the ground. Dont under stand what this ground is doing . does the dish need to be grounded the other 2 rooms in the house dont have this set up. Guess thats what you get when you get a free install and holes in the side of the house. Looked at direct tv web site didnt see any thing about this issue .Whats the proper way to ground the dish or does it even need one.