There is a conundrum gonna' happen. The master receiver will put out either 13 or 18 volts depending on the tp polarity it is currently tuned to.
Any SWM device is designed to work with just that. SWM components from the lnbf (ku band) to the receiver. Far as I know from folks hammering the facts at me. Some of the chinabox receivers in "that other community" can have firmware that allows use of switches like the DPP-44.
EB slapped up a post that briefly addresses this issues of one cable, multiple receivers.
Some C band lnbf's like a Panasat with dual output ports have one port for H and the other for V. Voltage independent.
I'll slap up a photo of my current setup.
One dude on Legit was using priority switches. A complicated explanation that was hard to understand and even cheesed EB off.
But still. "One Guy" (receiver) is providing either 13 or 18 VDC output and that throws the lnbf into horizontal or vertical polarity. And keeps it there.
There are unicable lnbf's. Not so sure about ones for C band though. And when used. Apparently blind scans go *poof*...fuhgedaboutit!
In my setup I'm sending voltage out over a coax who's only job is to power a power inserter. The Tru-Spec.
If you look it has a selector switch. Either one port gets 13 and the other one 18 VDC, or both get the same voltage.
I'm using twin Norsats on an ortho for C band. The RF outputs go to the multi-switch.
Took a bit to 'get it'. The multi-switch gets H & V polarities. So a voltage controlled dual port lnbf could be used with the Tru-Spec setting fixed voltage.
H & V polarities are present on the Zinwell. When a receiver sends 13 or 18 volts to the output port. The Zinwell switches the lnbf in port.
But since the receiver ports are "split" and voltage selectable. No other ports are affected. Another receiver hoked to an output port would do the same.
And everyone is happy. But.
That's for C band only. My Ku lnbf along with C band are fed into the diseqc switch.
It works without a burp. A bit of thinking and another type of, or extra, multiswitch. Diseqc switch. All moved inside. Would make for a seamless distribution system.
But of course. Extra cabling from the house to the dish would be needed. Perhaps put it all in a weatherproof box outside and wifi link several receivers inside.
Anyway. Others have better scenarios I'm sure.