Re: Phone-line breakthrough and broadband


Conor. wrote:

In article <kvh3c5l5jb4jjip9jeo7h1rekgo6fjaf7q@xxxxxxx>, Spike says...

Conor wrote:

In article <2a105d94-5a2b-4907-bfa5-
234bc2c4d56a@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, ian says...

Has anyone had experience of curing phone-line breakthrough on a line
also used for broadband?

Yes. Set up the antenna properly.

Could you expand on that rather bald statement?

Set it up so that it doesn't cause breakthrough. If you're using a
horizontal antenna within reasonably close proximity of phone lines,
then you're going to possibly get coupling. So either alter where it is
or its polarity.

That isn't 'setting up the antenna properly', it more like finding an
antenna that minimises breakthrough whether it's the station's fault
or not. A dummy load could do that.

The antenna could well be 'set up properly' (whatever that means), and
the broadband likewise, yet there still could be a problem of
breakthrough.

I've never caused breakthrough on anything at all despite running far
more power with antennas very close to houses.

My 25 watts SSB on 80m is picked up on a neighbour's phone which is
also broadband enabled. (Moving my antenna is not really an option.)

1) Presumably this may also disrupt the broadband. I have not
suggested this to them since I'm likely to be blamed for all
subsequent broadband problems. What - if any - effects may it have?
Just slowing the speed, freezing downloads requiring rebooting, or
what?

Drop the connection.

At the end of the day, you are the problem.

That's very poor logic.

When you transmit, you cause breakthrough. I don't. Many others don't.
So what is the difference?

Can't you see that a fault might lie in the system that appears to be
suffering? Why should, in that case, the station concerned have to
'set up the antenna properly'?

It would be better to look for faults in both
systems using some procedure or other. After all, if one of your
neighbours came to you with a TVI/BCI issue and said "At the end of
the day, you are the problem", I doubt you'd accept that conclusion
for obvious reasons. So, don't do it the other way round, it dosn't
make it any more correct.

But we're not talking about a TV with a pre-amp connected to a knackered
20 year old aerial with water filled 20 year old co-ax.

But yes, the first thing I'd be looking at was my own station, just as
Ofcom would.

Perhaps, but I'll bet pound to a pinch of salt that they wouldn't stop
there, if they couldn't find a fault with it, whether the antenna was
'set up properly' or not.
--
from
Aero Spike
Not a member of the RSGB for 50 years 1959 - 2009
.

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