It's a coax cable. I took a picture and it gave me a better perspective since it's high up. I believe the wire looks like it is connected to the new dish but it is not. I think he cut the wrong wire when he first set it up. (The cable to the other room runs through the room with the 721.) He had to hook it up in the other room by accident because the first time around it was still picking up the sw44 switch and not working. The wire seems to be connected with screws.. or maybe a barrel as someone explained above.