Thursday, December 16, 2010

Cable and satellite-tv-wiring

Cable and satellite-tv-wiring

The cable used for cable and satellite-tv-wiring is called coax. Coax cable for TV antenna comes in 3 standard sizes, RG-59, RG-6, and RG-11.
Most homes use RG-59 because it’s smaller and easier to work with. It’s terminated with a fitting called an “F” connector.




residential tv wiring


The coax is shielded to prevent interference from higher voltage lines or fluorescent lights that might be too close. The coax needs to be trimmed and the shielding needs to be pulled back before the F-connector can be slid on and crimped.

tv wiring


The cable can be stripped with a coax stripper that leaves the perfect end for termination. I personally use a utility knife, it's just as fast.

residential tv wiring


The F-connector will close around the coax to form a tight connection.

coax tools


You can use clamps to crimp the f-connectors or you can just buy the kind that screw onto the cable.

You will need to run the coax cable from a main hub to each room that will have a tv jack. The coax hub has an input where the cable from the antenna or the cable company will feed into it.
The hub will have many outlets for each room. The hub below is one of the many kinds of coax hubs available.


coax wiring


Each room that has tv service will have a tv jack which connects to the wall plate inside the walls.

cable tv wiring


Now, when we put everything together, we can keep all the phone lines, TV cable lines, network lines, and even speaker wiring neatly organized so they all run a straight line back to the distribution box.

These distribution boxes are nothing more than big, all-in-one hubs, but they give a look of completion and organization to a home.
Distribution boxes look confusing and intimidating at first, but everything has its proper place.


distribution panel


One thing to remember about cable and satellite-tv-wiring is that the coax is susceptible to electro-magnetic interference.
With that in mind you can either get quad cable in an RG-6 or an RG-11 (very bulky)or you can just be careful to not install the cable close to fluorescent lights or high voltage cables.
Try to keep the coax at least 12-inches away from these things and you should have static free tv.

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