Thread: AT&T DSL
View Single Post
  #16   Report Post  
Posted to alt.home.repair,sci.electronics.repair
[email protected] krw@attt.bizz is offline
external usenet poster
 
Posts: 5,105
Default AT&T DSL

On Fri, 30 Aug 2013 00:45:07 +0000 (UTC), Jerry Peters
wrote:

In sci.electronics.repair wrote:
On Thu, 29 Aug 2013 14:54:31 +0100, Mike Tomlinson
wrote:

En el artículo , micky
escribió:

Well it was no placebo. I'd measured my speed a dozen times on a
website that does that before I changed the wire; and I measure it a
dozen times after I changed the wire, and it was consistent before and
consistent afterwards.

That's entirely possible. You changed untwisted wire for twisted pair
wire. Twisted pair cancels out interference, so I can well believe you
saw an increase in your DSL sync speed.


Nope. After a mile of crappy phone company, ten feet of more crap
isn't going to matter.


Sure it is. Do you understand what twisted-pair is? And why it's
necessary?


Yes, I do, actually. I've been a practicing hardware design engineer
for 40 years. I design this stuff.

The "mile of crappy phone company" wire is twisted pair for a reason.


Except when it isn't. It really is crappy. Hell, RF (DSLish) can be
transmitted over, even crappier, power lines.

Really, the last ten feet doesn't matter when the first five thousand
isn't ideal. ...and it isn't, by a *long* shot.

I'd suggest you learn something about RF signal propagation, which is
what we're discussing for DSL.


I suggest you learn something. Period.