Have a question. I know that you need a HD Receiver to receive HD signal (Satellite). My question is, can you use a SD Receiver line Pansat 2700A to check to see if HD signal is on a particular TP? I want to buy a HD receiver but I don't want to do so if the TP the channels are on is too weak to get a signal. So is there any way you can use a standard FTA receiver to check the HD signal?