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Digital splitters and cable installation

895 Views 3 Replies 4 Participants Last post by  hometheaterguy
I just recently upgrade to a HDTV and got digital cable with an HD box from Cablevision. I have been reading in other forums that PQ is dependent on your connections and input. I want to know if I need to change my cable infrastructure. Currently I have an old 3-way-1000 mhz splitter on the outside of my house all of the cables to the tvs are also run on the outside of the house.

I want to bring the outside cables inside of the house and need to hook-up a 4th TV. I was going to replace the 3-way splitter with a 4-way splitter. So here are my questions:


Would there be a difference between a 1ghz 4-way splitter and a 2.3ghz satellite/digital tv splitter?


I bought a 2.3ghz splitter by Ideal Industries. Can this splitter be installed outside, is it waterproof? I cannot find any information on their website.


The existing cable from the pole does not have enough slack to make it through the outside wall. If I used a male/male connector to extend the cable into my house would I lose signal?


Thank You
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"The existing cable from the pole does not have enough slack to make it through the outside wall. If I used a male/male connector to extend the cable into my house would I lose signal?"


I am curious about the absence of a ground block. This serves a two-fold purpose. Grounding the outer shield and a demarcation point for the cable co. From the ground block add desired length of RG-6 into your house.

Use a 1ghz 4-way not 2.3 for cable. Any quality splitter can be used outdoors using o-rings or weather proof gel at the connections.

If your only option is a male/male connector, use a quality compression tool and fittings such as Thomas and Betts. If cost prevents this, at the very least use a barrel connector rated to 1ghz. IIRC red barrels are cable, blue and green are satellite.
Great info.

To add you will see about 1db insertion loss for that barrel or groundblock.


A groundblock is simply a barrel used for grounding. Your drop from the pole goes on one end, the cable that enters your house from the other. The screw holds a groundwire from the block to your grounding point. There shouldnt be a continuous run from the pole to your splitter or tv.


GroundBlock
http://cablefaq.org/e107_images/news...ges/dcgrb1.jpg


Here is a quick introduction to cable types and compression/connectors.


Here is a simple faq on how to cut and compress a good fitting.
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1000MHz is what is used for CATV. 1800, 2000, 0r 3000MHz is used for DBS because of its higher frequency. So, a splitter higher than 1000 would not improve picture quality. Even if a ground block or splitter says it is waterproof and compression fittings are used, it is best using non-RTV silcone grease and rubber seals on the areas touching fittings to make everything water-tight.
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