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View Full Version : Diplexers and OTA Signal


msa6
03-16-08, 07:35 AM
Novice here, looking to understand use of diplexers, etc.

I have Dish and am using an outdoor antenna as well for OTA signals. I have no problem getting both satellite and OTA coax connections into the house (several outside the house coax taps), where they come into a panel in the basement. From there I'd like to feed both the Dish and OTA signals into the room with the receiver, but I'd like to do it over just a single coax run (there are two available into the room, but I'd like to use the second for something else).

Is this a "problem" I can solve with a diplexer at either end of the proposed coax run? If it is, is there some sort of "special" diplexer that I need? is it as simple as combining the two coax feeds at the basement panel, and then separating them again in the room where the receiver is?

I know this is Dish 101 stuff...thanks for any help!

boba
03-16-08, 07:58 AM
YES WITH dish YOU CAN USE A COMMON DIPLEXER

Kent Taylor
03-16-08, 07:58 AM
Novice here, looking to understand use of diplexers, etc.

I have Dish and am using an outdoor antenna as well for OTA signals. I have no problem getting both satellite and OTA coax connections into the house (several outside the house coax taps), where they come into a panel in the basement. From there I'd like to feed both the Dish and OTA signals into the room with the receiver, but I'd like to do it over just a single coax run (there are two available into the room, but I'd like to use the second for something else).

Is this a "problem" I can solve with a diplexer at either end of the proposed coax run? If it is, is there some sort of "special" diplexer that I need? is it as simple as combining the two coax feeds at the basement panel, and then separating them again in the room where the receiver is?

I know this is Dish 101 stuff...thanks for any help!

It is that simple. You'll lose a little bit of signal strength using diplexers but if you've got a pretty strong signal, it won't matter. I bought mine at Circuit City.

BattleZone
03-16-08, 11:57 AM
DishProPlus receivers send a lot of DC current through the diplexers, and cheaper ones burn out quickly. Dish only has a couple of high-current-rated models on their "approved supplies" list. The most common one are the Holland 105 (blue sticker) at about $2 each, which are rated up to 2 amps (2000 mA). The cheaper red-sticker Hollands are only rated to 750 mA, and we have to replace dead ones in the field all the time. But there are even junkier ones (Radio Shack and others) that we ALWAYS replace, because virtually anytime we go to a service call where they are present, they are the problem.

I recommend the blue Hollands or the Channel Masters.