I have at my home a DirecTV system with an HD DVR box (H23-700, I believe is the number) and the SWM-Line 5-LNB antenna. I have a cabin that I have installed a simple 18-in round DireTV dish on and acquired the 101W satellites. I want to see if this will work: Can I buy a simple DirecTV IRD box to leave at the cabin, and simply pop out the activation card from my home box, take it to the cabin, put it in the box there, and have it provide me the basic DirecTV channels from the 101W position?