Diplexers explained
thiggin2 said:
Is there a diagram out there that can show the hook ups using just Duplexer's. I think I know but just want to make sure.
It's Diplexer, not duplexer - we have to be careful with the terms. No doubt that someone will come up with a device named duplexer that does something totally different.
I've hand-drawn the diagram a couple of times before - it's out there somewhere, but it's really quite simple.
Here's a general explanation that covers more than your situation:
A diplexer has 3 ports. They are always used in pairs. The 'single-side' ports ALWAYS connect to each other - directly - no switches, splitters, combiners, or separators allowed in-between. Ground block is OK, if that's the right location for the system to be grounded.
The other 2 ports are 'matched up'. Labels vary, but "SAT" and "TV" or "ANT" are typical. "SAT" goes to the dish or switch on one end, and the satellite input of the receiver on the other. Depending on your application, "TV" or "ANT" goes to the OTA antenna or second room TV on one end and "Antenna input" (NOT remote antenna) or "TV or RF output" on the back of the satellite receiver.
Final note, the diplexers must be rated as 0-900MHz on the TV port, and 950-2150MHz on the SAT port. The TV side can be lower (eg. 0-500MHz) if you're using only VHF channels (2-13). The SAT side can be 950-1500MHz if you're NOT DishPro.
Hope this helps people with diplexer questions.