Hi everyone. Really new to OTA receivers but knowledgeable in electronics. Have gotten a Traxis 5400 CI Receiver and 31" dish. Got everything installed, and although it is working with signal quality of 70 percent, can not pick up channels that are vertical. Have tried everything from adjusting dish, to adjusting skew on lnbf. I currently am locked in on 97 Galaxy 19 (Stationary) and don't plan on moving it. What could be the problem?