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Standard User Zarjaz
(knowledge is power) Sun 08-Apr-12 08:37:29
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She'll not take any more, Captain !


[link to this post]
 
Nice surprise this morning, ran the BTw speed tester and wondered why I had 74meg downstream profile, JDSU confirms sync (always a little lower than the modem manages) at 73468/20000,

Interesting also, as the tester had shown a max achievable rate of 77meg.

I have not asked for an upgrade, and the only other confirmed case of 80/20 I know, was contacted by BT retail telling him he was going on a trial....... nothing similar received here.

So it looks like that's it for my line, finally topped out at 74 meg. Not bad, starting back 12 odd years ago with 512Kbps and a USB modem.

Shame I haven't the equipment at this end to make the most of it..........



1. Best Effort Test: -provides background information.

Download Speed
24 Mbps

0 Mbps 72.93 Mbps
Max Achievable Speed

Download speedachieved during the test was - 24 Mbps
For your connection, the acceptable range of speedsis 12 Mbps-72.93 Mbps .
Additional Information:
IP Profile for your line is - 72.93 Mbps

2. Upstream Test: -provides background information.

Upload Speed
13.88 Mbps

0 Kbps 20 Mbps
Max Achievable Speed

Upload speed achieved during the test was - 13.88Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps

...noticed also that the downstream sync profile is now lower than this morning, settlig down maybe.

Has anyone else had this unrequested hike ?

Edited by Zarjaz (Sun 08-Apr-12 20:34:47)

Standard User Andrue
(knowledge is power) Sun 08-Apr-12 10:45:34
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Re: She'll not take any more, Captain !


[re: Zarjaz] [link to this post]
 
In reply to a post by Zarjaz:
So it looks like that's it for my line, finally topped out at 74 meg.
Vectoring might give you more smile

---
Andrue Cope
Brackley, UK

Just because he can smile
Standard User Zarjaz
(knowledge is power) Sun 08-Apr-12 10:51:44
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Re: She'll not take any more, Captain !


[re: Andrue] [link to this post]
 
?? What's 'vectoring' ??

Short of recrimping every connection between here and the cab, and making sure the twist is tight in said joints, I suspect that's it, sync wise.


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Standard User yarwell
(sensei) Sun 08-Apr-12 10:54:39
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Re: She'll not take any more, Captain !


[re: Zarjaz] [link to this post]
 
until they tweak the VDSL technology again.

www.alcatel-lucent.com/vdsl2-vectoring/
http://www.ospmag.com/issue/article/vdsl2-turning-co...

--

Phil

MaxDSL - goes as fast as it can and doesn't read the line checker first.

MaxDSL diagnostics
Standard User Zarjaz
(knowledge is power) Sun 08-Apr-12 11:03:08
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Re: She'll not take any more, Captain !


[re: yarwell] [link to this post]
 
OK, I can see that there's a little room for occupying more bit's per bin up the top end, but ....

I had thought that when I did 40/10 then it would go higher, now I don't get the full 80, that must be it ??

Standard User robvxr
(newbie) Sun 08-Apr-12 11:12:56
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Re: She'll not take any more, Captain !


[re: yarwell] [link to this post]
 
Does vectoring require any hardware replacement? Or is it just a different code/method of sending the signal?

BTBroadband

My Broadband Speed Test
Standard User yarwell
(sensei) Sun 08-Apr-12 11:17:27
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Re: She'll not take any more, Captain !


[re: Zarjaz] [link to this post]
 
that's it with the current frequency profiles and technology, I agree. If vectoring allows noise cancellation to give you more effective SNR then the speed can go up.

Then you need a second line to double it with bonding smile

--

Phil

MaxDSL - goes as fast as it can and doesn't read the line checker first.

MaxDSL diagnostics
Moderator billford
(moderator) Sun 08-Apr-12 11:18:08
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Re: She'll not take any more, Captain !


[re: Zarjaz] [link to this post]
 
In reply to a post by Zarjaz:
So it looks like that's it for my line
When anyone says something like that I'm always reminded of the dial-up days, when ~50kbps was regarded as close to the maximum possible, with learned quotes about line bandwidth and Shannon's theorem to back them up.

Now I can download 200 times faster than that down the same bit of wire, and nearly 1,500 times with the aid of a bit of fibre crazy

Bill
bill@thinkbroadband.com __________________Planes and Boats and ... __________________BQM
The author of the above post is a thinkbroadband moderator but it does not constitute an official statement on behalf of thinkbroadband.
Standard User yarwell
(sensei) Sun 08-Apr-12 11:19:09
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Re: She'll not take any more, Captain !


[re: robvxr] [link to this post]
 
Does vectoring require any hardware replacement?
I wouldn't think so, from my (limited) understanding. Or maybe it requires an add-on unit to analyse the noise and introduce the anti-noise. Might be proprietary too, so if you backed the wrong vendor you don't get it, but hopefully it'll be standardised.

--

Phil

MaxDSL - goes as fast as it can and doesn't read the line checker first.

MaxDSL diagnostics
Standard User Moradin
(member) Sun 08-Apr-12 11:30:46
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Re: She'll not take any more, Captain !


[re: yarwell] [link to this post]
 
http://www.assia-inc.com/DSL-technology/DSL-knowledg...


From what i've been reading, a Line with vectoring Zarjaz will take your speed of 74 to well over 100

-----------------------------------------------
December PCP to postcode checker
https://www.google.com/fusiontables/DataSource?snapi...
My Broadband Speed Test

Edited by Moradin (Sun 08-Apr-12 11:32:20)

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