I thought I had it all figured out until I read some posts regarding only using ONE line to the HR21 SAT1 input. Here's what I want to do: run a single coax from the SWM2 port to the receiver location and connect to two receivers: an HR21 (2 tuners) and H21 (1 tuner). I have already purchased a 1x4 splitter, expecting to use two outputs for the HR21 and one for the H21. Will this still work? If so, do I need to terminate the 4th splitter output? Can If only one connection is required, can I just use 2 of the 4 on the 1x4 splitter (would terminating the other outputs be required)? Do I instead need to purchase a 1x2 splitter and run single wire to each receiver, placing them in SWM mode?

Sidenote: SWM1 port will be connected to PI located at a different HR21 elsewhere in house.

Thanks!