Originally Posted by PK930
First off thanks for the help. I thought the SWM8 systems was just a means to control different receivers that all use the same dish?
Well, yes, I should have been more specific - the SWM system means it's easy to use installed, single coax distribution to place receivers at the individual displays. As the latest D* are also very physically small, they could be tucked near each display (depends on how you have them all mounted), and you could then use an RF or IP-control setup to change channels, etc. Not as slick as a centralized ZeeVee setup, but it would be cheaper depending on how much variety you need.
I have the dish to receiver part covered, it's the receivers to the TVs that I don't have. This is why we decided on the ZeeVee boxes as it could modulate the signal to run over the RG6 wire already in place.
My suggestion was based on the assumption that you wanted a 1:1 ratio of receivers to displays. Fewer receivers to more displays and the ZeeVee setup works better and better.
Your second part appears to the answer I was looking for:
I take four DirecTV HD receivers and send them into their own ZvBox.
Each ZvBox feeds a four input distribution amplifier.
Since the most I've seen is about 8 or 10 (please link to others if you know of any) I should split the signals from there.
Does that sound right? I have it in my head but just can't get it in writing. I just don't want to degrade the signals if I don't have to and I know splitting a lot can do this.
Actually, you'd feed all 4 ZeeVee boxes into a single amplifier, and that amplified signal would be split to all 15 displays. Doing that split is easy, just a matter of calculating the gain/losses to match the amp and the splitters.
ZeeVee (x4) -> 4-way combiner -> distribution amp -> 2-way splitter -> 8-way splitter (x2)
Greg's suggestion is a good one too, but with a 4:15 ratio of receivers:displays, the ZeeVee solution is pretty good economically, especially with the cabling already in place.