Large Plasma TVS

I am going through ES Hell due to neighbours large plasma TV, if you look into the issue you can see that these devices really mess up the mains electricity in your home and those on the same branch/phase circuit as you. They generate so much emf from various parts within, that the Radio Society of great Britain has entered a petition onto the governments website. Does anyone have any experience of whole house/mains filering as this looks part of the way to go if you cant get off grid for both mains elec and telecoms, it seems that the wiring in your home is a trojan horse !

PUK



**************


[Non-text portions of this message have been removed]

You will probably hear the noise using an AM radio near your switches.

If you shut off the power, you may still hear it on a lamp cord plugged in
because the neutral wire is still connected.

There are filters that can do the job, but the ones that work down to 10kHz
are heavy and expensive. I have met electricians who claim to have
installed
filters, but you could spend a lot of money and still not tolerate the
result.

If possible, get the neighbor to plug the TV in to a filter. It should
improve
their reception, picture, their neurons, and protect a bit against
lightning.

The filter I and others use is this
http://www.filterconcepts.com/ac/cf_series.html
last I checked cost $145 new. They are rugged and industrial looking, but
not
huge or heavy (can only take 15 or 20 amps). They say "not for household
use"
and I don't know why. There are also filtered power strips but they
probably only
help with very high frequencies. A good filter should have 2 or 3 stages.

Bill


On Tue, Oct 7, 2008 at 5:49 AM, <[hidden email]> wrote:


[Non-text portions of this message have been removed]

 
Puk replies - Thanks Bill, I have seen that Maplin do a filter with RFI
reduction for £30 I wonder if this will do the trick ?
 
(http://www.auctiva.com/hostedimages/showimage.aspx?gid=277350&image=62110318&images=62110318,62112846,60473496,60478386&formats=0,0,0,1&format=0)
 
In a message dated 10/7/2008 9:55:59 P.M. GMT Daylight Time,  
[hidden email] writes:

You will probably hear the noise using an AM radio near your switches.

If you shut off the power, you may still hear it on a lamp cord plugged in
because the neutral wire is still connected.

There are filters that can do the job, but the ones that work down to 10kHz
are heavy and expensive. I have met electricians who claim to have
installed
filters, but you could spend a lot of money and still not tolerate the
result.

If possible, get the neighbor to plug the TV in to a filter. It should
improve
their reception, picture, their neurons, and protect a bit against
lightning.

The filter I and others use is this
_http://www.filtercohttp://www.http://www.fihttp_ 
(http://www.filterconcepts.com/ac/cf_series.html)
last I checked cost $145 new. They are rugged and industrial looking, but
not
huge or heavy (can only take 15 or 20 amps). They say "not for household
use"
and I don't know why. There are also filtered power strips but they
probably only
help with very high frequencies. A good filter should have 2 or 3 stages.

Bill






   


[Non-text portions of this message have been removed]

A good filter should be a little bulky--like a half liter volume or so.
If it's compact it could just be a couple capacitors--which should be
better than nothing but will only address higher frequencies.

If you can open it, it should have coils around black ferrite rings.
(and capacitors and maybe resistors).

Bill

On Wed, Oct 8, 2008 at 2:47 AM, <[hidden email]> wrote:


[Non-text portions of this message have been removed]

In a message dated 10/8/2008 4:22:14 P.M. GMT Daylight Time,
[hidden email] writes:

A good filter should be a little bulky--like a half liter volume or so.
If it's compact it could just be a couple capacitors--If it's com
better than nothing but will only address higher frequencies.

If you can open it, it should have coils around black ferrite rings.
(and capacitors and maybe resistors).

Bill




I bought the filter this afternoon from Maplins (Tacima mains conditioner
and RFI filter, it only has one torroid and a few capacitor things very small,
anyway I plugged it in and there was no effect on the signal shown via the
AM radio, I also added 2 other filters into the plugin strip but still no
effect, infact I tested the cable that runs 30m down my garden to my log cabin
(which I cant stand for long !) and evan with the mains switch on the plug on
off the signal still came through the filters just as loud !!! This is
really doing my head in, I am having to endure it for 6hrs a day and its
weakening me even my wife has commented on the anguish thats written all over my
face, this is ageing me inside and out ! I also have a deep sense of rage which
is also unsettling. The signal seems to be low khz and reaching upto 3mhz
maybe more plus harmonics and so on, do you think I can get a filter for this
bill ? To be able to plug a filter in and hear the noise quashed on the AM
radio would be a major relief.

PUK






[Non-text portions of this message have been removed]

If you heard no difference, it would seem to imply that the noise is "common
mode"
and that the filters are only good at filtering "differential mode".
Differential means
noise on one wire relative to the other, common means same noise on both
wires.
Some filters, especially cheap ones, only work on differential mode noise.
In some cases a cheapish filter can work on common mode if the filter has
a place to attach a ground wire and the ground is a good RF ground not
(initially)
contaminated by the same noise. So an isolated ground rod, connected by a
short fat ground strap to the filter, or a bunch of them (ground rod farm)
is ideal.

Good filters give specs for common and differential mode, for instance
http://www.filterconcepts.com/ac/cf_series.html
L/L means from one wire to another, and L/G means from one wire to ground,
which is what matters for common mode.

I think if there is only one coil in the filter it can only filter one mode.

There's a surplus equipment place here where I've found ferrite rings big
enough
to thread a power cord through many times, and some used ones had cords
already
wrapped into a coil. I assume this would help with common mode. But it's
not
as good as a 2 stage filter I would think.

I should say I'm really a novice at all this. Another point is that to get
relief at night
you can shut of the power and disconnect the neutral as well. I have not
done that
but I did install a two-pole (aka double pole) switch to kill power and
neutral in the
bedroom outlets at night. I also disconnected the ground (which is usually
bonded to the neutral
at the service entrance) and use GFI at the first outlet past the switch to
protect the other
outlets.

Hope this helps
Bill




On Wed, Oct 8, 2008 at 2:54 PM, <[hidden email]> wrote:


[Non-text portions of this message have been removed]

PUK - replies to Bill - Mate I like what I hear, you are top of the bill,
literally, thanks for your continued input/advice.

PUK

In a message dated 10/8/2008 11:30:45 P.M. GMT Daylight Time,
[hidden email] writes:




If












[Non-text portions of this message have been removed]