FYI - Diplexers adversely affect Moca signal strength

[harshness]

If you use diplexers, you WILL whack satellite MoCA (lower annex) frequencies.

The frequency range DISH is using (650-875MHz) is in the ANT range (<900MHz) so the diplexer is going to effectively kill MoCA when you plug into the SAT side (>1,000MHz).

 

[JM42]

If you use diplexers, you WILL whack satellite MoCA (lower annex) frequencies.

The frequency range DISH is using (650-875MHz) is in the ANT range (<900MHz) so the diplexer is going to effectively kill MoCA when you plug into the SAT side (>1,000MHz).

He knows that. He is talking about diplexing between Dish and node, not between node and receiver. As others have said, theoretically between dish and node should work - no need for moca on that segment. Mike didn't have any luck, but there is another that had success. We need a few more results posted to draw any real conclusion.

 

[3HaloODST]

I would think diplexing before the node (between dish and node) would work just like it did on the ViP and older receivers. Then again it's a little different in that the node acts more like a switch than a receiver. Has anyone ever successfully diplexed between a dish and a switch (e.g. DPP44?)

 

[MikeD-C05]

Aren't you contradicting yourself above? You certainly can't diplex the signal around a DPP44, if that is what you tried to do. But as miner said above, this should work. There is nothing different about the LNB bandstacked signal before the switch, nor anything different about the DPP bandstacked signal after a switch, that would prevent you from diplexing an OTA antenna. It's the same frequencies after all, whether or not there is a node and Hopper further downstream.

Okay , I am telling you that I could not use existing sat coax and diplex it before the node coming from a regular 1000.4 sat dish ( switch built in to the dish lnb). When I did try to do this , I got ZERO moca signal in the house and no satellite tv. The ota did work on the separate coaxes run to both rooms using a terk 44 that is amplified and powered by the receiver itself. I followed the directions on the node and used the diagram that DISH put out when they first talked about the whole house dvr. When I eliminated the terk 44 switch in the antenna and used the sat coaxes straight to the node , the mocca signal came back and sat tv too. I had to use a different sat dish, next to my eastern arc 1000.4 sat dish, and feed the coax from lnb, to the terk 44 INPUT clipped on to the 1000.4 sat dish. I used the third sat coax on the 1000.4 sat dish that I wasn't using, and ran it from the OUTPUT of the terk 44 and to the house. From the house I diplexed it again to sat and ota. From the sat output I ran to the third coax run in my living room and used an old 501 receiver (not authorized) to power the terk 44 antenna. From the ota side I split it to a triple switch to run it to my living room and bedroom for ota on the tvs in there. I now have ota to both rooms and it still is amplified signal for Vhf too , since I have two local ota stations in VHF . I also have mocca sat signal to three rooms and one room I use an hdmi splitter to mirror the living room tv in the computer room. I only relayed this to confirm that you can't diplex the same coax to a single node and to the hopper. Of course if you want to try and see if it works for you , using SIMILAR setup as me, and it does work , then by all means, go right ahead & tell me how you did it. I would love to be able to do it, if it could be done.

 

[MikeD-C05]

Oh, didn't realize you bumped an old post. I guess I was right about it being discussed months ago lol. Thought OP was just now posting this thread as if it were news.

No I only bumped it to answer the theoretical question that another poster said you might be able to diplex ota before the node. I confirmed Saturday , you can't and have mocca work. At least it didn't work for me . And it was news to me , since I just got my hopper installed by myself Saturday.

 

[MikeD-C05]

If you use diplexers, you WILL whack satellite MoCA (lower annex) frequencies.

The frequency range DISH is using (650-875MHz) is in the ANT range (<900MHz) so the diplexer is going to effectively kill MoCA when you plug into the SAT side (>1,000MHz).

It sure killed my mocca signal when I tried to diplex before the node.

 

[harshness]

If something breaks as a result of diplexing, it surely doesn't seem like the answer is going to come from theorizing that it can't possibly be broken.

Sometimes you just have to accept that things are the way they are.

 

[TheKrell]

Well, I can't fathom your detailed description at all. Probably I would need a wiring diagram to make sense of your rather complex setup.

I will however offer this one additional comment. If your diplexers are between your 1000.4 and node where there is no moca signal at all, then how in heck can that affect the moca signal, which is only on the cabling after the node (to Hoppers and Joeys)? Does the Hopper gratuitously kill the moca signal when it loses the signal from the Dish antenna? (Maybe it does; I don't know.) That would be extremely perverse if so.

 

[MikeD-C05]

Well, I can't fathom your detailed description at all. Probably I would need a wiring diagram to make sense of your rather complex setup.

I will however offer this one additional comment. If your diplexers are between your 1000.4 and node where there is no moca signal at all, then how in heck can that affect the moca signal, which is only on the cabling after the node (to Hoppers and Joeys)? Does the Hopper gratuitously kill the moca signal when it loses the signal from the Dish antenna? (Maybe it does; I don't know.) That would be extremely perverse if so.

The terk 44 diplexes it at the dish and at the entrance to the house where the node is, I have it diplexed back out to ota and sat . I ran the ota to separate coaxes to both rooms and it worked. The sat signal run to the node from the diplexor did NOT work. The mocca signal went to ZERO. I removed
the terk from the coax and the mocca signal came back strong. I don't know how much more I can explain it. But I can tell you that diplexing before the node using the same coax does NOT work.