diplexing antenna and satellite causes one sat tuner to fail

[Bloggator]

I hope someone can help me out so that I don't have to spend ANOTHER chunk of money having ANOTHER RJ6 line dropped.

I got two Terk diplexers and hooked the RJ6 from the sat multiswitch to the sat in and the RJ6 from my attic attenna into the other. I used the other diplexer by my TV to separate the cable into sat and ant.

If I just plug in the satellite cable into the HR10 along with the existing sat cable...fine (no OTA, but two sat tuners). If I only plug in the antenna cable...fine (one sat tuner, one OTA tuner).

But if I plug them both in, I lose one sat tuner.

But here's the kicker. I have a BeyondTV PC system in the room. If I plug the diplexed sat cable into the HR10 and the diplexed antenna cable into the BTV system...I get two sat tuners on the HR10 and the OTA signal on the BTV box. So the diplexer is doing what it should do.

It just seems that plugging both diplexed cables into their respective slots on the HR10 is causing some sort of breakdown somewhere.

Anyone have any ideas?

Thanks

[jautor]

Do you have DC blockers on the antenna input and the antenna out? It sounds like you're getting DC bleed somewhere, which is affecting the multiswitch. (also, it's "RG6" not RJ...)

Otherwise, check the cable connectors to make sure they're not shorting ground...

[Bloggator]

Thanks for quick reply. I don't even know what a DC blocker is. I just hooked the antenna to the diplexer. Is a DC blocker something I can buy at Fry's?

And thanks for the info about it being RG6. I've been saying "RJ6" for years. :eek:

[Bloggator]

Is this what you're talking about?

http://www.amazon.com/Parts-Express-VOLTAGE-BLOCKING-COUPLER/dp/B0002ZPIN2/sr=1-2/qid=1157301497/ref=sr_1_2/102-7888180-8560959?ie=UTF8&s=electronics

Thanks

[A J Ricaud]

Is this what you're talking about?

http://www.amazon.com/Parts-Express-VOLTAGE-BLOCKING-COUPLER/dp/B0002ZPIN2/sr=1-2/qid=1157301497/ref=sr_1_2/102-7888180-8560959?ie=UTF8&s=electronics

Thanks

Yes. Also at Radio Shack < $2.00:

http://www.radioshack.com/product/index.jsp?productId=2062057&cp=&origkw=dc+block&kw=dc+block&parentPage=search