----- HDTV Magazine Tips List -----
And yes, all these nasty signals can damage a digital and Ethernet signal,
especially if the cat 5 is run beside power lines. It also can radiate
through the house, as has been stated, via the power lines in the walls, as
well as into the units via power cords. A friend tested for this a couple of
years ago when he bought his test set and was amazed at the signal
degradation. We had no more disagreements about wire running after that.
-----Original Message-----
From: Tom Vrolyk
Sent: Monday, September 26, 2005 7:19 PM
To: HDTV Magazine
Subject: Re: Interference on VHF channels
----- HDTV Magazine Tips List -----
Shane, would/could that also cause interference on an
old WiFi B network? TIA Tom V
Big problems with old plaster walls and whatever, the
wiring is sometimes old, like 10" apart wires through
porcelan sp? insulators in the old studs.. phones are
fun too!? > TomV
---
[email protected] wrote:
> ----- HDTV Magazine Tips List -----
>
> Shane,
>
> "Switching supply" is a type of power supply
> commonly used in
> computers. They are notorious for generating
> interference. It is
> possible the supply is defective, but more likely it
> is just poorly
> designed. They put current spikes on the power line
> and sometimes
> voltage spikes on the safety ground. Assuming you
> can't repair the
> power supply, you still have options. You can plug
> the computer into a
> good filter, which can be either a unit with coils
> and capacitors or a
> UPS unit. This will confine the radiation to the
> 6-feet of power cord.
> You can reduce that radiation by using ferrite
> cores and by coiling
> the cord into a small space (and possibly wrapping
> that bundle in
> aluminum foil).
>
> Anyone experiencing problems with a VHF-low DTV
> channel should do a
> thorough search of his house for interference
> sources. I wrote a short
> article on how to do this:
>
http://www.hdtvprimer.com/ANTENNAS/Glos ... terference
> .
>
> Ken
>
>
>
> -----Original Message-----
> From: M. Shane Sturgeon
> <
[email protected]>
> To: HDTV Magazine <
[email protected]>
> Sent: Mon, 26 Sep 2005 11:07:03 -0400
> Subject: Interference on VHF channels
>
> ----- HDTV Magazine Tips List -----
>
> I would be interested to know everyone's thoughts on
> the following:
>
>
http://www.tivocommunity.com/tivo-vb/sh ... ost3286618
>
>
>
> Briefly:
> This person is indicating interference with channel
> 3 based on usage of
> household appliances (computers).
>
>
> I'd just like to know cause, effect and possible
> fixes. Shielding? etc.
>
>
> Thanks,
>
> -- M. Shane Sturgeon
>
>
>
>
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