So far, we were only able to get one high-def DVR receiver going since there are only three home runs going from the dish to the 5X8 switch. Is there some kind of diplexer or something that we can use or do we need to pull a fourth cable? The third cable is a "home run" from one of the four outputs of the dish to the high-def receiver. Wow, DirectTV is a PITA! Time Warner sucks but much easier to cable.
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I haven't done DTV installs in a few years, however I am sure you will need to homerun another line. When we wire for DTV we always pull at LEAST 6 cables near the dish. 8 cables if it is in a remote area or gas station (HughNET needs it's two cables)
The title of this post states "5 LNBs - only three RG6 Home runs."
Do you have the new KA/KU 5 LNB Dish?
Above, you stated that the home runs go to a 5x8 switch. For the switch, to operate properly, there MUST be 4 homeruns from the dish to the switch.
Then you will need a homerun from the switch to each receiver. DTV receivers do not need 2 homeruns unless it is a DVR. The DTV HD-DVR's have dual tunners, thus requiring 2 homeruns.
But to answer your question, YES you need another homerun from the dish to the switch.
However, you can run up to 4 receivers without a switch, if you homerun from the dish to each TV location. You basically only need the switch if you are going to have more than 4 TV's, or you want to Diplex Locals or CATV into the system.
Hope this helps you!
Kirk Herron
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A mistake on your part does not constitute an emergency on my part.
Hi Kirk - are you saying that if I connect one cable to each of three of the cables coming out of the dish, I can bypass the switch and connect a high-def box at each of three TVs? Is the exact cable coming out of the dish significant, or do they all give you both bands? Yes, it is a brand new 5 LNB dish. Sounds like this lady is going to have to have another home run to operate properly. Thank you for your consultation.
Yes, you can bypass the switch all together if you are not going to have more than 4 receivers.
If you notice, the dish is a 5 LNB, but only has 4 outputs. This is because there is a built in switch in the dish's LNB system, allowing you to run up to 4 receivers straight off the dish.
Each cable is able to support both bands (KA & KU) with out the need of an additional switch. As long as your total cable runs are not more than say 100 - 150' you will be just fine.
Kirk Herron
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A mistake on your part does not constitute an emergency on my part.
Wow, Kirk, thank you very much! I think she has exactly 4 TVs in her house and I will check. So one home run to the dish directly will drive the high-def box - awesome. I will reassess the situation using your scenario and let you know. Thanks again.
