A simple aerial distribution system is fine for TV aerial and CCTV*, but not for satellite signals if you hope to use more than one Sat receiver at a time.
TV aerial and modulated CCTV signals are passive. They just exist at certain frequencies, and the TV tunes in to those frequencies to receive them. Satellite is different. The signal is active. The satellite receiver sends a control voltage up the cable to the LNB (the lump with the wires sitting on the arm of the dish). The control voltage makes the LNB switch modes to receive one of 4 different bands depending on the channel required.
Using something like the LDU608, and connecting two or more Sat receivers that you're using at the same time, will lead to a clash at some point when two or more different bands are required at the same time. The satellite receiver sending out the higher voltage wins. Those sat receivers requesting bands using a lower voltage will lose, and that means they get no signal.
The correct solution is a device called a multiswitch.
At first sight it looks more complicated than an aerial distribution amp, but that's just because of the way it deals with satellite. Once you understand it a little better, then the solution is brilliantly simple.
The clever part about a multiswitch is that it takes all 4 satellite bands at the same time and makes them all available to every satellite receiver 100% of the time. In effect, it's like having one satellite dish per receiver, but it's done with just one dish.
For Sat use, the LNB gets changed from a standard Quad LNB (as used with Sky HD) to a Quattro LNB that does the 4 modes at the same time. Four wires then connect that group of signals to the switch. From the switch, each room gets as many cables as are needed to supply the duplex/triplex/quadplex plates plus -
if needed - one additional feed for a second Sat receiver input. For a room with say a Freesat recorder and a Freeview-only TV you'd run two cables. In a room with a TV with both Freeview and Freesat tuners you could get away with just one cable.
Multiswitches are available in various sizes including 12-way, 16-way and larger. There are also versions that work with the type of signalling required by Sky Q. Let me know if you need more info.
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* the CCTV signal has to be turned in to something compatible, and for that you would use a modulator.
