I have got
http://storage7.static.itmages.ru/i/12/0930/h_1348972488_3631845_374ad73c25.png](http://itmages.ru/image/view/695764/374ad73c)
I have got
http://storage7.static.itmages.ru/i/12/0930/h_1348972488_3631845_374ad73c25.png](http://itmages.ru/image/view/695764/374ad73c)
On 09/30/2012 04:46 AM, Ansus wrote:
>
> I have got 'image:
i can’t determine the nature of your problem, nor why it might be useful
to you to know my internet speed…
please state your networking problem more clearly…
OH!: did you intend to post this to polls, chit-chat or other
non-technical forum?
–
dd
Almost 12Mb/sec.
Although next to nothing when waiting for the novell login screen to appear and then subsequently bring up the forum, on a bad day. But then I am running KDE4.
Forgot to mention that 1 English Mb/s is worth 8 Russian Mb/s, i.e. as of today’s exchange rate, and please be aware that rates can go down as well as up.
If you’re wondering if your speeds are “normal” what you see is typical middle of the road for <today> on ADSL, assymmetric downloading faster than uploading. What you see also represents a fairly recent oddity, its now common to display in units of megabytes which instead of megabits, the diff is 8 times.
Cable in Russia may not be able to deliver speeds comparable elsewhere, here in the USA even cheapest cable is much faster, symmetic but restrictions may be placed on usage.
If you believe your actual experience is less than theoretical, then you need to investigate why.
HTH,
TSU
Not so. It depends on who is doing the displaying. In the UK most ISP’s quote speeds in megabits, and not just recently. Also 8 times is an approximation - you are missing the control bits (and bobs). That’s probably why the raw speed merchants quote it in megabits - to be accurate.
I believe the Speedtest.net gives the speed in megabits per second.
I wonder whether ADSL is capable of delivering 80 Mbits/s
I believe that speedtest.net gives the speed in megabits per secomd, so where is the oddity?
Er yes, that’s what your graphic shows. Megabits, not megabytes as @tsu was saying it should be! Perhaps I missed something, so what point were you making exactly?
Ansus wrote:
> I wonder whether ADSL is capable of delivering 80 Mbits/s
Depends an awful lot on the ifrastructure. I work on one site that is about
500 yards from the CO and will typically get 18-20 megabit download speeds
while the connection here at the house is pushing it at 8 megabits. On the
first site, the loop is 500 yards from a fiber pipe while the home
connection is close to 3000 yards on an all-copper loop, including the
nearest co. Both sites are upload limited to 1.024 megabits and will
normally come close to that. The local telco dictates the upload limit
because of some 10 year old test data that found the consumer grade modems
they were selling were overheating and crapping out when pushed on uploads
so they set the limit on upload speed to keep the power and heat down.
I found a friendly tech a few months back and he bypassed the software
limits while we tested some stuff. The ADSL2 modems I’m currently using had
no issue with upload rates symetrical with the downloads (20 megabit
claimed) but the modem did get noticably hotter on prolonged uploads at the
higher rate.
Looking at the signal quality on a scope, I was surprised I could get the
speed we did. At home, the wiring is all nearly 30 years old from the house
to the main trunk some 5 miles west of me. Open up a terminal block and
your guarenteed to need compressed air to clean out the crap just to get to
the pushdown blocks When we were testing, we had to vacuum out the co
box before we could find anything.
–
Will Honea
On 09/30/2012 07:52 PM, Will Honea wrote:
> When we were testing, we had to vacuum out the co
> box before we could find anything.
are you hinting that dust is not a great natural insulator?
–
dd
I wondered what internet speed other people here have so to compare.
On 2012-09-30 19:52, Will Honea wrote:
> Looking at the signal quality on a scope, I was surprised I could get the
> speed we did. At home, the wiring is all nearly 30 years old from the house
> to the main trunk some 5 miles west of me. Open up a terminal block and
> your guarenteed to need compressed air to clean out the crap just to get to
> the pushdown blocks When we were testing, we had to vacuum out the co
> box before we could find anything.
I don’t think dust matters that much, but rust does. It is non linear.
–
Cheers / Saludos,
Carlos E. R.
(from 12.1 x86_64 “Asparagus” at Telcontar)
And water in the box/cable doesn’t help much. Well you can’t have rust without water.
On 2012-10-01 02:26, consused wrote:
> robin_listas;2492197 Wrote:
>> I don’t think dust matters that much, but rust does. It is non linear.
> And water in the box/cable doesn’t help much. Well you can’t have rust
> without water.
Of course you can!
If, for example, you live near the sea, you get a lot of rust in dry places.
–
Cheers / Saludos,
Carlos E. R.
(from 12.1 x86_64 “Asparagus” at Telcontar)
Rust is the oxidation of iron. It requires oxygen to form. Water, with its associated ions, whatever they may be, essentially serves as a catalyst to the oxidation process.
On 2012-10-01 04:36, jdcart15 wrote:
>
> Rust is the oxidation of iron. It requires oxygen to form. Water, with
> its associated ions, whatever they may be, essentially serves as a
> catalyst to the oxidation process.
Ah. Well, language problem here, because I meant oxidation of any metal, thinking specially of
the copper cables. The oxidized connections form semiconductor junctions in both directions,
ie, non linear connections that distort and degrade signals. Low level signals are very much
affected (which is why for high quality work they use gold plated contacts).
–
Cheers / Saludos,
Carlos E. R.
(from 12.1 x86_64 “Asparagus” at Telcontar)
dd@home.dk wrote:
> are you hinting that dust is not a great natural insulator?
Depends on what kind of dust you have Lately, a lot of the dust around
here has actually been smoke and wildfire debris - carbon makes an
interesting dust that can be hydroscopic when it eventually rains. In that
case, it will retain the moisture for an amazing length of time.
–
Will Honea
Carlos E. R. wrote:
> Ah. Well, language problem here, because I meant oxidation of any metal,
> thinking specially of the copper cables. The oxidized connections form
> semiconductor junctions in both directions, ie, non linear connections
> that distort and degrade signals. Low level signals are very much affected
> (which is why for high quality work they use gold plated contacts).
In areas constructed in the late 1960 thru the late 1970 time frame we have
an even worse scenario: aluminum wiring. The good thing that comes from
this is that the local telco is replacing much of the infrastructure with
fiber optics - but I’ll be long gone before they get it all done ;-(
–
Will Honea
Yeah
This thread is funny
UK speeds still suck
I’m on what they call ADSL MAX, described as 8Meg, it’s all very misleading for the masses.
Just when I figure out the differences between the K or k or B or b
Give it a day or two and I’ve lost it all again. Memory like a sieve