I will be mounting the Dish 1000 + and the DPP44 switch. Right now I am only running one VIP211 HD receiver and maybe a second one in the future. Do I have to use the power inserter with the DPP44? If so, can I plug it in right behind the receiver or does it need to be in a certain strategic place along the RG6 run downstairs? Is the power inserter used for signal gain? Please explain. Thanks, John