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Thread ID: 108736 2010-04-09 08:20:00 co-axial cable and proximity to power cables globe (11482) PC World Chat
Post ID Timestamp Content User
874611 2010-04-09 08:20:00 Doing some rennovations and have moved the tv outlet. There was an opportunity to extend (using a joiner) and then run the tv ariel down the same gap in the wall as a power point. THe wall cavity is only 75 to 100mm across. Since doing this the picture has reduced in quality dramatically.

Is co-axial affectd by how close it is to a power cable or should i be looking for another source of the problem ?

thanks
globe (11482)
874612 2010-04-09 08:51:00 Some say cables should be in a insulated cover to minimise interference ..

Well at least coaxial have some shielding and it wasn't category cables :)
Nomad (952)
874613 2010-04-09 08:55:00 Some say cables should be in a insulated cover to minimise interference ..

Well at least coaxial have some shielding and it wasn't category cables :)

Any suggestions as to what i could put in between the two cables to shield one from another ?
globe (11482)
874614 2010-04-09 08:56:00 Check the joiner though you probably already have.

Have you connected the joiner correctly. By this I am assuming you have made a break in the coax or added a extension to the existing coax and would have had to peel off the outer layer to expose the braid and center copper.

We have a tv/sky cable, heatpump power cable and other power all sharing a small vertical space with no problems for TV reception.

You could possibly shield the TV coax though not sure how that is done.

Have you tried retuning the TV to see if a better signal is available else where?

Been many years since I have had much to do with coax cables.
PinoyKiw (9675)
874615 2010-04-09 09:00:00 Check the joiner though you probably already have.

Rejoined it several times to no avail.


By this I am assuming you have made a break in the coax or added a extension to the existing coax and would have had to peel off the outer layer to expose the braid and center copper.


Have added a three and a half metre extension.



Have you tried retuning the TV to see if a better signal is available else where?

Before i poked the new wire through under the eaves in the roof and and down the gap in the wall tested it and seemed to be okay then - just since i have "installed" the new wire.
globe (11482)
874616 2010-04-09 09:11:00 Before i poked the new wire through under the eaves in the roof and and down the gap in the wall tested it and seemed to be okay then - just since i have "installed" the new wire.

Lets work backwards then.

Check the antenna and the joins there. You haven't by chance pulled the cable which in turn has stressed a solder joint at the antenna end.?

Or try tuning the antenna, might be slightly off if you have bumped it.
PinoyKiw (9675)
874617 2010-04-09 09:19:00 Any suggestions as to what i could put in between the two cables to shield one from another ?

any metal is best.

couple of things, either you damaged something in the change, the join or connection at the end of the new piece is poor or the signal is border line and the slight increase in noise tips it over into poor signal.
without knowing signal its a bit tricky to tell.

one thing to remember, make sure any joins are easily accessible because they will fail at some point.
tweak'e (69)
874618 2010-04-09 12:20:00 some shielding tips
www.belden.com
KarameaDave (15222)
874619 2010-04-09 13:25:00 Check again the joint and any plugs.
I would install a new continuous run
of Double Screened SAT cable without
any jointing.
blanco (11336)
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