"Tim Streater" wrote in message
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On 30 May 2020 at 20:10:01 BST, "Jake56" wrote:



"Tim Streater" wrote in message
...
On 30 May 2020 at 11:02:16 BST, "Jake56" wrote:

"Mike Humphrey" wrote in message
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On Sat, 30 May 2020 06:46:38 +1000, Jake56 wrote:
Tricky Dicky wrote
Do not connect your router/modem to an extension socket on the phone
network it should be connected directly to the BT/Openreach master
socket with the shortest modem lead you can manage.

Thats bull****. There is FAR more copper lead between the master
socket
and the exchange or node than there is to any extension socket.

There's some truth, but it's oversimplified.

We'll see...

The phone line is a twisted pair, which resists interference.
The master socket splits out a bell wire (which isn't needed
by most modern phones, but older ones need it).
This means that the line is no longer balanced,
you have three wires not two.

But the reality is that there are 4 wires in it,
two twisted pairs, so its still balanced.

There's no signal on the fourth wire, so that pair is not balanced, if
the third wire is carrying the bell signal.

But the other pair with the broadband on it is balanced
and thats what matters performance wise.

Not if you have a wire sat next to it picking up a load of RF noise.

The pair with the broadband on it is still a balanced pair.

And the street cable has unused pairs in it too
and a lot more RF noise than the one in the house.


Disconnecting the bell wire made a substantial difference here. (Not
that it matters now we have FTTC)

If you use a plug-in extension, or follow the standard BT
extension plan, you'll extend this unbalanced line

Nope, see above.

which can pick up interference.

Nope.

Certainly it can, which is why the universal recommendation has been to
disconnect the bell wire - leaving the second TP entirely unused.

Separate issue to what I commented on, his claim that the lead between
the extension socket and the modem had to be a short as possible;

And so it should be, dumb-cluck.

Have fun explaining why that is necessary when there is far
more from the master socket to the exchange or RIM/CMUX.

And its trivial try both alternatives and see it makes no difference,
as I think it was Martin who said that he did that and found that
it made no difference.

--
"A committee is a cul-de-sac down which ideas are lured and then quietly
strangled." - Sir Barnett Cocks (1907-1989)