Mains Conditioning

[Chris B]

I have successfully run network signals round my house with a home plug
setup for the last 3 or 4 years.

Having recently purchased a rechargeable device and carried out lots of
trial and error I have concluded that plugging in the wall wart charger
destroys the home-plug network signal. I assume that this is because
the wall wart is injecting noise into the ring main

Is it possible that a mains conditioning extension lead such as this

https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ

might stop the problem? Or is there anything cheaper which may have the
same effect. (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).


Don't worry the irony of a home-plug network being scuppered by
electrical noise from other equipment is not lost on me :-)

[Clive Arthur]

Post by Chris B
I have successfully run network signals round my house with a home plug
setup for the last 3 or 4 years.
Having recently purchased a rechargeable device and carried out lots of
trial and error I have concluded that plugging in the wall wart charger
destroys the home-plug network signal.  I assume that this is because
the wall wart is injecting noise into the ring main
Is it possible that a mains conditioning extension lead such as this
https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ
might stop the problem? Or is there anything cheaper which may have the
same effect.  (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).
Don't worry the irony of a home-plug network being scuppered by
electrical noise from other equipment is not lost on me :-)

I discovered the same, and the source was an SMPS from some equipment
I'm working on, plugged in near my PC. In my case, the easy solution
was to move the plug in network thing to another socket a couple of
metres away.

I think it quite likely that a mains conditioner/filter would work too.
The one you linked to has a common mode choke which is good. A cheap
Chinese one may just have the words 'mains conditioner' printed on it.

[The Natural Philosopher]

Post by Clive Arthur

Post by Chris B
Don't worry the irony of a home-plug network being scuppered by
electrical noise from other equipment is not lost on me :-)

I discovered the same, and the source was an SMPS from some equipment
I'm working on, plugged in near my PC.  In my case, the easy solution
was to move the plug in network thing to another socket a couple of
metres away.
I think it quite likely that a mains conditioner/filter would work too.
 The one you linked to has a common mode choke which is good.  A cheap
Chinese one may just have the words 'mains conditioner' printed on it.

Every time my oil fired spark ignition boiler fires up, I lose wifi
completely. Used to lose homeplug connected stuff as well...

[newshound]

Post by Chris B
I have successfully run network signals round my house with a home plug
setup for the last 3 or 4 years.
Having recently purchased a rechargeable device and carried out lots of
trial and error I have concluded that plugging in the wall wart charger
destroys the home-plug network signal.  I assume that this is because
the wall wart is injecting noise into the ring main
Is it possible that a mains conditioning extension lead such as this
https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ
might stop the problem? Or is there anything cheaper which may have the
same effect.  (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).
Don't worry the irony of a home-plug network being scuppered by
electrical noise from other equipment is not lost on me :-)

Can't say, but I am *very* pleased with my Netgear Nighthawk mesh system
(Which? best buy). About £180 for one master one slave.

I used to use an "ordinary" range extender between my modem and the main
hub in my office. That link would have spells of going down apparently
at random for 1 to 20 minutes. I'd go weeks with no problem then have it
fail several times a day for a week. Could have been some sort of
external interference. At first I thought it was my supply, and
Openreach did replace the (very old) plusnet modem which sorted things
for a while, but then it went bad again.

[Theo]

Post by Chris B
Is it possible that a mains conditioning extension lead such as this
https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ
might stop the problem? Or is there anything cheaper which may have the
same effect. (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).

Hard to say without seeing the circuit, but I could imagine putting
filtering across the mains will destroy the high frequency response. That
would filter out your SMPSU noise, but also filter the band used by your
Homeplugs. So they could work worse than they did before.

I would guess a series choke would do something to block HF noise flowing
between the strip and the mains, but it depends if the capacitors are in
parallel before or after the choke (I'd guess probably afterwards, in which
case the mains is 'protected' from filtering by the reactance of the choke
at HF frequencies). So you might be OK but you might not.

Theo

[John Rumm]

Post by Chris B
I have successfully run network signals round my house with a home plug
setup for the last 3 or 4 years.
Having recently purchased a rechargeable device and carried out lots of
trial and error I have concluded that plugging in the wall wart charger
destroys the home-plug network signal.  I assume that this is because
the wall wart is injecting noise into the ring main
Is it possible that a mains conditioning extension lead such as this
https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ
might stop the problem? Or is there anything cheaper which may have the
same effect.  (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).

It might, but then again would it not be simpler to replace the wall
wart with another than can match the required voltage and current spec?
i.e. eliminate the cause of the interference rather than try to filter
it out?

(not only that, if the PSU designers have skimped on EMC, what else have
the skimped on like adequate isolation a separation between mains and
low voltage sides?)
--
Cheers,

John.

/=================================================================\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\=================================================================/

[williamwright]

Post by John Rumm
It might, but then again would it not be simpler to replace the wall
wart with another than can match the required voltage and current spec?
i.e. eliminate the cause of the interference rather than try to filter
it out?

In a 1950s mag article on TV interference it said, "It is always best to
eliminate the source of the interference where possible rather than try
to suppress it."

Bill

[Chris B]

Post by williamwright

Post by John Rumm
It might, but then again would it not be simpler to replace the wall
wart with another than can match the required voltage and current
spec? i.e. eliminate the cause of the interference rather than try to
filter it out?

In a 1950s mag article on TV interference it said, "It is always best to
eliminate the source of the interference where possible rather than try
to suppress it."
Bill

Thanks to all those suggesting get a better wall wart. That option had
not even entered my head, but will certainly be the cheapest option.

I will give that route a go.

[Sn!pe]

Post by Chris B

Post by williamwright

Post by John Rumm
It might, but then again would it not be simpler to replace the wall
wart with another than can match the required voltage and current
spec? i.e. eliminate the cause of the interference rather than try to
filter it out?

In a 1950s mag article on TV interference it said, "It is always best to
eliminate the source of the interference where possible rather than try
to suppress it."
Bill

Thanks to all those suggesting get a better wall wart. That option had
not even entered my head, but will certainly be the cheapest option.
I will give that route a go.

I found that plugging offending wall warts into a filtered mains strip
fixed the problem for me.

[tony sayer]

In article <shvt58$8q1$***@dont-email.me>, Chris B <***@salis.co.uk>
scribeth thus

Post by Chris B

Post by williamwright

Post by John Rumm
It might, but then again would it not be simpler to replace the wall
wart with another than can match the required voltage and current
spec? i.e. eliminate the cause of the interference rather than try to
filter it out?

In a 1950s mag article on TV interference it said, "It is always best to
eliminate the source of the interference where possible rather than try
to suppress it."
Bill

Thanks to all those suggesting get a better wall wart. That option had
not even entered my head, but will certainly be the cheapest option.
I will give that route a go.

Nooo! You can't go cheap on it do the job properly all you need is one
of Russ's Andrews balanced line supply units at snip at £3,999.00

Plus one of his souper signature router Grounding units at £1199.00

https://www.russandrews.com/superrouter-signature-edition/

https://www.russandrews.com/balanced-mains-units/

[Theo]

Post by tony sayer
Plus one of his souper signature router Grounding units at £1199.00

I do hope he's grounding the antenna of his router. Wouldn't want any nasty
RF flying around.

Theo

[alan_m]

Post by Chris B
I have successfully run network signals round my house with a home plug
setup for the last 3 or 4 years.
Having recently purchased a rechargeable device and carried out lots of
trial and error I have concluded that plugging in the wall wart charger
destroys the home-plug network signal.  I assume that this is because
the wall wart is injecting noise into the ring main
Is it possible that a mains conditioning extension lead such as this
https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ
might stop the problem? Or is there anything cheaper which may have the
same effect.  (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).
Don't worry the irony of a home-plug network being scuppered by
electrical noise from other equipment is not lost on me :-)

Wouldn't it be easier to just change the wall wart?

[Chris Hogg]

Post by alan_m

Post by Chris B
I have successfully run network signals round my house with a home plug
setup for the last 3 or 4 years.
Having recently purchased a rechargeable device and carried out lots of
trial and error I have concluded that plugging in the wall wart charger
destroys the home-plug network signal.  I assume that this is because
the wall wart is injecting noise into the ring main
Is it possible that a mains conditioning extension lead such as this
https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ
might stop the problem? Or is there anything cheaper which may have the
same effect.  (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).
Don't worry the irony of a home-plug network being scuppered by
electrical noise from other equipment is not lost on me :-)

Wouldn't it be easier to just change the wall wart?

I thought that. Rather than a modern SMPS (assuming that's what the OP
has), get a type with a transformer?

[alan_m]

Post by Chris Hogg

Post by alan_m
Wouldn't it be easier to just change the wall wart?

I thought that. Rather than a modern SMPS (assuming that's what the OP
has), get a type with a transformer?

Or get a SMPS where they haven't left off some front end components. It
depends on if the wall wart is radiating interference or is injecting it
directly back into the mains.

[Martin Brown]

Post by Chris B
I have successfully run network signals round my house with a home plug
setup for the last 3 or 4 years.
Having recently purchased a rechargeable device and carried out lots of
trial and error I have concluded that plugging in the wall wart charger
destroys the home-plug network signal.  I assume that this is because
the wall wart is injecting noise into the ring main

It is possible that an extension socket with a ferrite core clipped onto
it close to the sockets will be sufficient to block RF interference.

Though finding a better designed wallwart might be a better option.
Ultra cheap and nasty ones have other bad characteristics which may be
potentially lethal like not being properly isolated from the mains.

Post by Chris B
Is it possible that a mains conditioning extension lead such as this
https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ
might stop the problem? Or is there anything cheaper which may have the
same effect.  (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).
Don't worry the irony of a home-plug network being scuppered by
electrical noise from other equipment is not lost on me :-)

It must be a very nasty noisy switched mode PSU to jam the home network
signal. Does it show up on AM/FM radio as well?

[Brian Gaff (Sofa)]

Great I need one of thus internet over the mains destroyers. They are the
Bain of my life, Running one overnight to disrupt everyone round here with
one might just clear the short wave bands of that awful shrieking and
ticking sound those adaptors make. grin.
Brian
--
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...
***@blueyonder.co.uk
Blind user, so no pictures please
Note this Signature is meaningless.!

Post by Chris B
I have successfully run network signals round my house with a home plug
setup for the last 3 or 4 years.
Having recently purchased a rechargeable device and carried out lots of
trial and error I have concluded that plugging in the wall wart charger
destroys the home-plug network signal. I assume that this is because the
wall wart is injecting noise into the ring main
Is it possible that a mains conditioning extension lead such as this
https://www.amazon.co.uk/Tacima-6-Way-Mains-Conditioner-black/dp/B00UB0G4DQ
might stop the problem? Or is there anything cheaper which may have the
same effect. (I am not planning to go down the HI-FI mains conditioning
route - a mesh wifi network would be cheaper).
Don't worry the irony of a home-plug network being scuppered by electrical
noise from other equipment is not lost on me :-)
--
Chris B (News)

[SH]

Post by Brian Gaff (Sofa)
Great I need one of thus internet over the mains destroyers. They are the
Bain of my life, Running one overnight to disrupt everyone round here with
one might just clear the short wave bands of that awful shrieking and
ticking sound those adaptors make. grin.
Brian

you would think that these ethernet over mains devices would be expected
to meet certyain EMC standards in order to get a CE mark as they must
not intentionally cause interference to others?

I am actually profoundly deaf from birth, and I can recall back in the
1908s the teacher of the deaf would use a desktop speech trainer which
is basically a better quality hearing aid with headphones.

Every now and again I'd hear the police radio over the headphones which
the characteristic pulsing beep between radio messages.

Once I told the teacher of the deaf, he had a quick less and quickly
turned off the speech trainer as it was apparently illegal to listen in
to police communications!