On Fri, 30 Aug 2013 00:45:07 +0000 (UTC), Jerry Peters
Yes, I do, actually. I've been a practicing hardware design engineer
for 40 years. I design this stuff.
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.
On Friday, August 30, 2013 2:05:45 PM UTC-4, email@example.com wrote:
The whole point of DSL was that it was designed to work over
the existing installed based of far from perfect phone wiring
that exists not only from the phone company to the premise,
but within the premise.
That would allow digital service to be delivered without the
huge cost of a new infrastructure or modifying the existing one.
The total length of wire can be as much as 3 miles, from
the phone company CO or other eqpt, through the house wiring,
to the DSL modem. All of that is just plain old phone wire. What
kind of data rate you can get does depend on the gauge of the
wire, the number of gauge changes along the way, any bridge
taps, etc. On a short line without the above imperfections,
you get the highest rate. On the longest line, with many
imperfections you get a lower rate, or in some cases it may not
work at all.
But like KRW, I'm having a hard time trying to see how changing
out the last 50 ft of traditional phone wire and replacing it
with something else, suddenly results in a 3X speed improvement.
If the line length went from 3 miles to 1/2 mile, I could see
it. If several bridge taps or loading coils were removed, I could
see it. I'm wondering if the real problem was not something
loose, eg a poor connection at the ends where the 50 ft
cable was being changed out, and maybe the new cable made
good contact where the other one did not. It would seem to me
that if DSL were that sensitive to a piece of regular 50ft phone
wire, the whole thing would not work, almost everyone would
be having all kinds of problems, and they could never roll it
out. IMO something unusual, whatever it is, was happening
On Sat, 31 Aug 2013 07:04:26 -0700 (PDT), " firstname.lastname@example.org"
See, you just listed a possibility that could make it triple speed.
Yes,it is hard to believe but we did not see the old wire and
I recently had problems on my DSL line the ATT lineman made a few
changes, including the line to the house. I guess you could say my
speed increase 5000x since it was 0 before the repairs.
Broadbandreports.com test 5011 Kbs down, 641 up. Best I ever got.
Loading coils? Bad connections? Sure, they can cause all sorts of
problems. Bridge taps? Tens of feet long? Not going to happen. The
issue is certainly *NOT* the wire gauge or twisted pair vs. untwisted
That something was faulty; believable. That it was the wire gauge -
On Saturday, August 31, 2013 8:09:23 PM UTC-4, email@example.com wrote:
Bridge taps most certainly do effect the transmission on DSL lines.
They were one of the design concerns well known from the beginning
when the Telcos first started to work on developing DSL. A line without
bridge taps is best. The more bridge taps, the more difficult it
becomes to transmit and transmission rate typically decreases.
As I said, I agree that just changing that one short piece of wire, I
don't see how it accounts for a 3x performance difference. But wire gauge does effect performance and wire *gauge changes* also effect performance. Let's say you had two DSL lines, both a mile long, both have a half mile of 22 gauge,
half a mile of 26 gauge using same wire. But one line has
an entire continuous half mile of the 22 gauge,
followed by a continuous half mile of 26. The
other keeps changing gauge back and forth at various intervals for a total
of 20 gauge changes The latter line will have
a lower DSL speed capability than the first line, because instead of
1 gauge change, it has 20 gauge changes along the way.
So, his gauge change could effect the performance, I just
can't see how it could effect it by a factor of 3X.
On Wednesday, August 28, 2013 2:32:09 PM UTC-4, micky wrote:
Some of the things that effect DSL performance in addition
to line length are the wire gauge, any wire gauge changes along
the way and any bridge taps. When you switched to that new
wire, you didn't also get rid of a bridge tap that went to
another unused location in the house, did you? Any of those
things can effect performance, but it's one hell of an increase
and I would agree with krw that it's hard to imagine just
changing that 50 ft of wire made all that difference. DSL was
designed to work on typical phone wire and there can be
several miles of it between your DSL modem and the CO or
there was a poor connection, a partial short, a bridge tap
that's picking up noise or connected to who knows what, and
any of that got fixed at the same time, I could more easily
see that making such a big difference.
Not terrible but you own all the hardware at your end. If anything
goes wrong you'll buy a new modem. The price and speed really suck,
though. If you have any alternatives, don't do DSL. Satellite is
worse but not by much.
On Tue, 27 Aug 2013 12:55:43 -0400, firstname.lastname@example.org wrote in
What I what to compare is AT&T (6.0M) DSL and possibly a Verizon 4G
wireless router. I say "possibly" because I'm not sure yet if the V4G
is available to me. The Verizon web site map say yes, but I need more
than a map to believe Verizon.
Web based forums are like subscribing to 10 different newspapers
and having to visit 10 different news stands to pickup each one.
My 6M DSL line is 3M on a *good* day. 4G is *MUCH* faster (though I
get crappy reception at home). There is also the data cap on
wireless. I never hit my 6Gig LTE limit but I certainly would if I
used it for my home Internet.
On Tue, 27 Aug 2013 12:55:43 -0400, email@example.com wrote:
I have DSL because Comcast was down several times a day. I found it so
unreliable I decided slower was better than fast when it worked.
I run a server that tags the net once a minute and comcast was so bad
my log file was full all the time.
On Tuesday, August 27, 2013 6:28:08 AM UTC-5, CRNG wrote:
switching to AT&T DSL and was wondering how well they respond to line prob
lems. -- Web based forums are like subscribing to 10 different newspapers a
nd having to visit 10 different news stands to pickup each one. Email list-
server groups and USENET are like having all of those newspapers delivered
to your door every morning.
We have had AT&T DSL for a few years, no complaints. Every once in a while
, maybe 2 times per month, we will get a message saying the connection is d
own in the telco central office. But the connection has always been restor
ed within a few seconds, so no problem.
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