OK, here are my results.
I obtained a SWM8, 29V PI, and 1x4 green label splitter (not used) from Amazon for around $50 for everything.
The King Dome has only 2 outputs, labeled 'MAIN' and 'AUX'. Everything I've read about the SWM8 says to hook up 4 wires from the antenna to the SWM8. Since I only had 2, those are the ones I hooked up. Main into the 13V input and AUX into the 18V input. Then I put the PI inline behind the DVR and wired it through with power to the roof on the existing line. Then I went back on the roof with a meter to check that the cable that formerly was wired into the KD 'MAIN' input is the one that had voltage from the PI. Can't be too sure. So that coax went into the SWM1/Power input, the other home run to the bedroom receiver went into the SWM2 output.
The result of all this after several days of re-booting and checking cables is that I now have 2 tuners working in the DVR and can watch one show while recording another. And the Bedroom receiver works fine.
BUT, I cannot get multi-room (whole home) to work, no matter what.
I have run a long CAT-5 on the floor between the two HR24s, no difference. Both receivers are authorized for Whole Home. I've played with IP addresses to make sure they were on the same sub-net. I put the Ethernet cable through a switch and it appears that packets are being sent. But no matter what I've done, Whole Home status says that there are no other receivers networked.
Just not going to happen. BTW, the H24 series do not require a DECA or bandpass filter, they are built in.
I don't know if it needs to hooked up to a HD dish (which the King Dome is not) in order to power a frequency band that Whole home uses or what the answer is. (Other than it's probably the King Dome)
There are those pesky 2 unused inputs..... The SWM8 appears to be working properly so I would assume (yes, I know) that the connections would take place in the SWM8 between the H24s.
