On 17/10/2018 09:16, samchunk wrote:


"Halmyre" wrote in message
...
On Tuesday, October 16, 2018 at 11:57:43 PM UTC+1, Custos Custodum wrote:
On Tue, 16 Oct 2018 14:15:47 +0100, Muddymike
wrote:

Ive just installed a tp-link home plug Ethernet network extender. Just
plug them in, press a button on each, and they work. Why cant more IT
kit be so simple.

Bonus is it even works in the workshop 40 yards away:-)

I zapped 2 sets of these within a relatively short time (probably
spikes from hair dryers, etc.) before changing to BT units, which have
been trouble-free (and much faster) for the last 2 years, touch wood.

I've got a set by Netgear which work well enough but the receiver bit
occasionally has to be reset; switching off and on again does the trick

I got the same result with a Medion P85019 (MD 86977)

Same **** with TP-Link.

Prolly same chipset.

which makes me wonder (a) why it loses sync in the first
place and (b) why it can't then renegotiate the connection.

Just bad design.


--
There is nothing a fleet of dispatchable nuclear power plants cannot do
that cannot be done worse and more expensively and with higher carbon
emissions and more adverse environmental impact by adding intermittent
renewable energy.

"Custos Custodum" wrote in message
...
On Wed, 17 Oct 2018 10:53:53 +1100, "Rod Speed"
wrote:

Custos Custodum wrote
Rod Speed wrote
Brian Gaff wrote

Indeed, If mains was meant for hi speed data it would be screened.

Have fun explaining why cat5 and cat6 arent. Neither is the phone
cabling.

That's because they use balanced conductors ("twisted pair")
which largely cancel any tendency to radiate and conversely
have a high immunity to common mode interference.

Yes, but that's the reason that they don't need to be screened.

And with the street phone cables, the main limitation is in fact
the the interference between pairs with adsl or vdsl on them.

Mains wiring is unbalanced and thus does not have these
advantages. Screening is the only option in this case.

No its not. It works fine without screening.

The screening would be there to contain the radiated interference.

No its not and isnt used on the street phone cables which
do in fact have a significant problem with radiated interference
between pairs in the cable with adsl and vdsl2.

"Jim GM4DHJ ..." wrote in message
...

Just bad design.


they are all bad design ...

Some don’t require the remote end to be power cycled to start working again.

In article , mechanic
scribeth thus
On Wed, 17 Oct 2018 00:23:17 +0100, Custos Custodum wrote:

Mains wiring is unbalanced and thus does not have these
advantages.

Is it? It may not be twisted but it may be balanced.

Not really at RF;!..
--
Tony Sayer

On 17/10/2018 20:02, tony sayer wrote:
In article , mechanic
scribeth thus
On Wed, 17 Oct 2018 00:23:17 +0100, Custos Custodum wrote:

Mains wiring is unbalanced and thus does not have these
advantages.

Is it? It may not be twisted but it may be balanced.

Not really at RF;!..

Oh I dunno, it bears a passing resemblance to 300 ohm ribbon cable..


--
€œBut what a weak barrier is truth when it stands in the way of an
hypothesis!€�

Mary Wollstonecraft

On Thu, 18 Oct 2018 04:48:22 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:


The screening would be there to contain the radiated interference.

No its not and isnt used on the street phone cables which
do in fact have a significant problem with radiated interference
between pairs in the cable with adsl and vdsl2.

You know what cables they use in Europe, Ozzietard?

--
pamela about Rot Speed:
"His off the cuff expertise demonstrates how little he knows..."
MID:

On Thu, 18 Oct 2018 05:12:58 +1100, samchunk, better known as cantankerous
trolling senile geezer Rot Speed, wrote:


Just bad design.


they are all bad design ...

Some don¢t require the remote end to be power cycled to start working again.

....and you HAD to contradict again, right after he agreed with you! LMAO!

--
Kerr-Mudd,John addressing senile Rot:
"Auto-contradictor Rod is back! (in the KF)"
MID:

On Wed, 17 Oct 2018 20:39:09 +0100, The Natural Philosopher wrote:

On 17/10/2018 20:02, tony sayer wrote:
In article , mechanic
scribeth thus
On Wed, 17 Oct 2018 00:23:17 +0100, Custos Custodum wrote:

Mains wiring is unbalanced and thus does not have these advantages.

Is it? It may not be twisted but it may be balanced.

Not really at RF;!..

Oh I dunno, it bears a passing resemblance to 300 ohm ribbon cable..

I thought that. But 300 ohm cable doesn't have a conductor separating the
other two...

--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
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On Thu, 18 Oct 2018 04:48:22 +1100, "Rod Speed"
wrote:



"Custos Custodum" wrote in message
.. .
On Wed, 17 Oct 2018 10:53:53 +1100, "Rod Speed"
wrote:

Custos Custodum wrote
Rod Speed wrote
Brian Gaff wrote

Indeed, If mains was meant for hi speed data it would be screened.

Have fun explaining why cat5 and cat6 arent. Neither is the phone
cabling.

That's because they use balanced conductors ("twisted pair")
which largely cancel any tendency to radiate and conversely
have a high immunity to common mode interference.

Yes, but that's the reason that they don't need to be screened.

And with the street phone cables, the main limitation is in fact
the the interference between pairs with adsl or vdsl on them.

Mains wiring is unbalanced and thus does not have these
advantages. Screening is the only option in this case.

No its not. It works fine without screening.

The screening would be there to contain the radiated interference.

No its not and isnt used on the street phone cables which
do in fact have a significant problem with radiated interference
between pairs in the cable with adsl and vdsl2.

A cost vs. benefit decision where the crosstalk was considered to be
tolerable. I was referring specifically to the need to screen mains
wiring if you want to minimise the radiated interference.

On Wed, 17 Oct 2018 16:33:55 +0100, charles
wrote:

In article ,
Custos Custodum wrote:
On Wed, 17 Oct 2018 10:55:00 +0100, mechanic
wrote:

On Wed, 17 Oct 2018 00:23:17 +0100, Custos Custodum wrote:

Mains wiring is unbalanced and thus does not have these
advantages.

Is it? It may not be twisted but it may be balanced.

Not if the neutral wire is permanently connected to earth, as it
should be.


it might be at earth potential for dc but not neceearity so for rf.

Fair point but the probability that both line and neutral will have
the same impedance to earth is vanishingly small, so there will still
be an imbalance.

On Wed, 17 Oct 2018 18:11:51 +0100, The Natural Philosopher
wrote:

On 17/10/2018 00:23, Custos Custodum wrote:
On Wed, 17 Oct 2018 06:38:54 +1100, "Rod Speed"
wrote:

Brian Gaff wrote

Indeed, If mains was meant for hi speed data it would be screened.

Have fun explaining why cat5 and cat6 arent. Neither is the phone cabling.

That's because they use balanced conductors ("twisted pair") which
largely cancel any tendency to radiate and conversely have a high
immunity to common mode interference. Mains wiring is unbalanced and
thus does not have these advantages. Screening is the only option in
this case.

T & E is reasonable balanced except the earth is in the way!

It might be on the drum but it isn't once it's part of a domestic
wiring installation where the neutral is connected to earth.

But thats
not the biggest deal . That is that to gop from one curcuit to another
menas passing through TWO MCBs that have, as a necessary part of teir
function two clils one in ceah. That menas a bloody great chokle exsist
ebtween two rings. That ****s up things so you need more power.

I couldn't parse that.


And of course ADSL over phone wires generates huge amounts of hash in
the MW/SW bands.


Leaving all that aside I have some TP link EOM **** but frankly whilst
its OK for one link, on te same ring, putting two or more devices on it
leads to crap reliablity and performance.


I am temporarily running a long ethernet cable now till I get back into
my proper (structred cable wired) house....