On 30/05/2020 08:15, Jake56 wrote:
actually it largely is...all te other broadband users on the same
cable run will produce more noise than the radio stations do in total

But the cable is twisted pairs and its not radio stations,
it the ignitions in the traffic thats much worse than
any electrical noise inside the house.

It being twisted will affect any noise it is subject to. It doesn't
apopoly soleley to i=gnition noise.


And the speed you get with broadband isnt determined
by the noise level anyway, its determined by the length
of the run of copper pairs in the street cable.

Precisely. The longer the run the more pickup from adjacent cables and
from radio stations.

As well as the weaker the wanted signal.

You seem to be rather weak on the theory of radio. I suggest you study
the implications of near versus far field signals on twisted pair
transmission lines, and the choice of ADSL bins versus the signal
strength of the few remaining AM radio stations as well as the variation
of recieved noise level with the time of day.

Then a short diversions into interference suppression on modern cars
equipped with - yes - AM radios as well, still - should disabuses you
of any notion that you actually know what you are talking about.

--
You can get much farther with a kind word and a gun than you can with a
kind word alone.

Al Capone