[mythtvnz] High quality cables

[Paul Kendall]

On Mon, Feb 16, 2015 at 9:58 PM, Andrew Ruthven <andrew at etc.gen.nz> wrote:

> On Fri, 2015-02-13 at 14:29 +1300, Don Robertson wrote:
> > On Fri, 13 Feb 2015 14:16:17 Steve Holdoway wrote:
> > > I'd just keep the lengths as short as possible. Given the local
> climate,
> > > I expect the backend will survive just fine in the roofspace.
> >
> > I'm only planning to put the cable in the roof space. I'm too paranoid
> to put
> > the machines up there in case they burst into flames.
> >
> > It is weird. Long run of cable to wall socket + 10m cable = good signal
> >
> > Same 10m cable connected directly to the antenna cable splitter = bad
> signal.
>
> Hey Don,
>
> It is quite possible that by shortening your cable run that now your
> signal string is too strong. The longer cable run to the wall socket
> will be attenuating the signal a bit...  Perhaps try a coil of cable up
> in the roof if you have some lying around?
>
> Ah, also given your comment about the old cable being cut, it sounds
> even more likely that the signal strength was too strong!
>
> Cheers,
> Andrew
>
>
> Yes, I had this exact problem with my setup. I have 2 cards a hvr2200 and
a hvr4000.
The 2200 was recording perfectly. The 4000 was having artifacts (mostly on
one channel).
I called the aerial guy and he put his meter on and said the signal was
very high, we popped
a 12db attenuator on the line and all has been god for the past couple of
years.

You can get these from Jaycar, they even have a variable attenuator that's
not too expensive as well.

Cheers,
Paul
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