DSL Gotcha

[Kurt Wall]

Quoth Michael Hipp:
> Kurt Wall wrote:
> 
> >Hey, list,
> >
> >I learned something interesting about DSL today. I was having lots
> >or intermittency problems with my DSL connection. A call to tech
> >support later, and it was fixed. Immediately. The solution: make
> >the RJ11 cable from the wall jack to the modem as short as possible.
> >The Ethernet cable can be as long as the protocol supports, but the
> >RJ11 cable needs to be very short, or the connection will be unstable.
> 
> I've never seen that problem, but it is no doubt due to the RJ11 cable 
> being untwisted. The uniform twisting of cat5 and even good old 
> telephone house wire gives it an inherent ability to reject noise. Has 
> to do with how the e-m fields cut through both conductors identically.

This is good information. I had no idea, but this is the sort of thing
that, lacking a proper engineering education, is indistinguishable
from magic. Thanks!

> And it's a good "trick" to remember for the future.

On its way to the SxS tips...

Kurt
-- 
[Prime Minister Joseph] Chamberlain loves the working man -- he loves
to see him work.
		-- Winston Churchill