[mythtv-users] Lack of aerial access
Mike Perkins
mikep at randomtraveller.org.uk
Tue May 22 17:42:15 UTC 2007
> ----- Original Message ----
> From: David Brodbeck <gull at gull.us>
> To: Discussion about mythtv <mythtv-users at mythtv.org>
> Sent: Monday, 21 May, 2007 11:49:47 PM
> Subject: Re: [mythtv-users] Lack of aerial access
>
>
> On May 21, 2007, at 1:23 PM, Dan Gravell wrote:
>
> > We have just moved into this house and the truth is I don't know.
> > The survey said it's of a timber frame construction, but wouldn't
> > there be insulation in the cavity?
>
> Probably. The are some tricks for that, though. When I was doing
> security camera installation I had some thin fiberglass poles called
> "fish sticks" that I would use to push wire through spaces like
> that. However, be aware that it's quite likely there's
> "firestopping" between floors -- solid wood blocks to prevent the
> cavities from acting like chimneys if the house catches fire. This
> would naturally block your access. Sometimes you can run the cabling
> alongside existing plumbing; usually the holes for that are oversize
> and there's room to shove a cable through alongside the pipe.
>
> If you have forced-air heat another option is to run plenum-rated
> cable through the air ducts. Be sure to use grommets where the cable
> passes through the sheet metal so it doesn't get cut.
>
> I live in the U.S. so it's possible construction details like this
> are different where you are. All of this stuff is highly dependent
> on local building codes.
>
> Of course, the aerial lead must already be coming from above. You
> might want to find out where it enters the house to begin with. If
> it's through the attic, then it's usually pretty easy to push cabling
> down into the walls of the top story; there's only one firestop to
> deal with, then, and since attics are usually unfinished it's right
> there where you can drill a hole in it.
>
> Consider pulling some network cable as well, as long as you're going
> to all this trouble. ;)
>
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>Dan Gravell wrote:
> To make it more complicated the aerial actually comes through the ground
> as it is communal. I found an entry point last night I think (a hole
> with a covering 'CATV' over it which I believe can mean communal antenna
> as well as cable TV), although unlike my neighbours' mine had nothing
> running out of it. I should get some tools out and have a look inside.
>
> Dan
>
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BE WARNED. 'CATV' means Cable TV which in most of the UK means the box
and any cables you might see belong to NTL/Telewest/Virgin. It's not a
good idea to go poking around in there. (Well, look but don't touch -
you get the idea.)
Mike Perkins
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