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-   -   Interference between romex and coax? (http://www.diychatroom.com/f18/interference-between-romex-coax-168566/)

mikegp 01-08-2013 09:45 AM

Interference between romex and coax?
 
I just realized I put an electrical outlet on one side of a stud and a coax outlet on the other side. I'm concerned about interference with the tv signal? Has anyone had experience with this? The coax is not running within a foot of the romex in any parallel runs.

joecaption 01-08-2013 09:48 AM

It will be fine.

mikegp 01-08-2013 09:54 AM

Also, I did not drywall yet, so I can still change the location of the coax.

joecaption 01-08-2013 10:01 AM

You can even by recessed boxes for romex and coax with nothing more then a piece of plastic between than and they work fine. So 1 ft. is nothing to worry about.

mikegp 01-08-2013 10:06 AM

Yea, I've seen those. Always thought they were a bad idea. Like this?

http://www.smarthome.com/25445/Dual-...SC200DV/p.aspx

joecaption 01-08-2013 10:10 AM

Sort of, the ones I'm taking about are recessed into the wall so a flat screen can be mounted right over them and the outlet does not stick out.
I have one at my own home and it worked fine and I've installed several others with never an issue.
That coax has shielding under the insulation.

Billy_Bob 01-08-2013 10:15 AM

Coax has a metal foil and wire braid under the outside insulation jacket. This is a "shield" which keeps outside electrical "noise" from getting to the inside wire. So as said above, it will be fine.

FYI - That outside shield is "grounded" at the equipment connection. That keeps it at 0 volts. (Other nearby electrical signals can't "induce" any voltage or signal in the shield or in turn the inside wire.)

And with that said, some "cheap" coax wire (typically white 6 foot lengths sold in retail stores) can have shields which only cover 50% of the inside wire, so some electrical "noise" can leak in. RG/6 coax is pretty good. And "Quad Shielded" RG6 is even better.

The "compression connectors" the cable TV companies use are better. Like the following, then after that is the tool used to install those connectors...

http://www.homecontrols.com/PL18001.jpg

http://ecx.images-amazon.com/images/...500_AA300_.jpg

Coax cutting tool...

http://i00.i.aliimg.com/img/pb/205/5...593205_115.jpg

Quad shield coax...

https://www.perfect-vision.com/Perfe...lustration.jpg

kt82 01-16-2013 01:30 PM

if I mount my Tv away from the "boxes" ,satelite converter ,DVD etc
what kind of cables should i run between them and the TV for future innovations?
HDMI , CAT-5 a RG/6 or ??

michaelcherr 01-17-2013 08:10 AM

If I were worried about "future innovations" and its new construction. I'd run conduit in addition to any cables the current technology needs. If you have conduit its easy to add later.
If i remember correctly low voltage/audio visual cables cant share conduit with 110/220 supply.


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