I have a oval DTV ant 2ea legency LNBs & a C lnb . How do I connect these at ant to get HD? only going to 1 T
You need a muliswitch. It takes the signals from all three LNBs and sends one cable out to your receiver. Call DirecTV or find one online. The three-LNB antenna combines two of them at the antenna, sending two wires to the LNB. I believe you can get multiswitches that take those two as iinputs and provides outputs for two receivers. You do not have to use both outputs if you have only one receiver. Make sure your multiswitch is for DirecTV.
Direct TV Installation : How to Hook up a 3rd TV to DirecTV
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