Here is an install manual for the 1000.4 antenna.
On pages 10 and 11, the diagram shows how to hook up the cable/wire.
I have the 211 receiver and use only one cable to connect to the antenna I do not have three cables and junctions. I don't remember which one it connects to on the LNB. (I don't know/understand how it connects to one and reads all three, but it does). I guess I could check which one I am actually connected to.....
At the back of the manual, you can look up your zipcode to see what elevation and azimuth for eastern and western settings. Then look at your location to determine whether you should go with the eastern or western arch satellite. These settings will have to be fine tuned.
I move around a lot and have both LNB's. This summer I'm heading out west and may use the western one.
Also, I purchased my receiver and antenna from a independent store. They signed me up for pay-as-you-go service.
Also, I think the 1000.2 antenna will only work for the western arch.