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Extending A TV Airel Outside

Postby Adds » Tue Nov 11, 2008 1:43 pm


I would like to extend my TV airel that I have on the outside of the building around the outside of the house to another room. I have seen the kits to be able to do this from the inside but is there something I need to be able to do this from the outside.

I don't want to have cabel running on the inside of the house. Someone said I needed some kind of junction box that has feeds off it so I can run the cable to another location as well.

Your help is appreciated.

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Simply Build It

Postby plumbbob » Wed Nov 12, 2008 7:54 pm

The problem you will find with extending aerial cables is that once they are joined, some of the signal is lost. Whether this is of any significance depends on the length of cable and the strength of the signal from the aerial. Far better to replace the whole cable as one continual run.

The second problem will be keeping the junction dry. Any rain getting in will rot the wire and earth the signal out. Try and make the join in the loft or somewhere else inside.

If you want to supply more than one tv from one aerial, then you need a splitter box with an amplifier as the signal is halved each time it is split.

Best way for multi rooms from one aerial is to pull the cable from the existing aerial into the loft, fit a splitter box, and drop a cable from there down to each room you want to supply.
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