Using King Tailgater for 2 receivers

You need to run 2 coax connections from the dish (which will have two connection points) to the receivers. You cannot use a splitter to turn 1 coax into two. It will also matter which line has the power injector installed. Use your existing coax connection for the "main" connector, Run new coax to the second receiver and connect it to the "aux" connection on the dish. Since DISH uses multiple satellites, the receiver connected to the "main" connection will control what satellite the dish is pointed at, thus limiting what you can watch on the second dish. To watch them all at once, you will need the Traveller from Winegard.