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Topic # 147420 18-Jun-2014 18:32
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Hi,

I got 2 VDSL lines. Both are 440m long roughly and have master filters etc.
Vodafone line as seen in this spectrum graph:

Vs the exact same length BigPipe:


The provider doesnt matter here. Obviously there is something up on the big pipe line. Generally its 10Mbp/s slower than the Vodafone one. I think the trained eye can see why. I emailed BP and got a ticket submitted. Chorus came back telling me DLM was doing something. Both lines are DLM-1 and remain till now on DLM-1 with 12SNR and 9 attenuation. So not DLM causing an issue.
Would we suggest as degraded copper? I dont get any errors on the line at all. Not sure of FEC's as Fritz 6.06 doesnt show those.



My money is on degraded copper and joins just need to be remade, but feedback is appreciated.
@BigPipe i think i need Chorus.



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  Reply # 1068780 18-Jun-2014 19:04
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It's probably within spec for sync rate, so unless it's dropping out, you might not get any change...



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  Reply # 1068800 18-Jun-2014 19:17
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RunningMan: It's probably within spec for sync rate, so unless it's dropping out, you might not get any change...


Haha, Probably the case.
Still something is up with a line that scratchy.

 
 
 
 


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  Reply # 1068807 18-Jun-2014 19:33
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I understand that copper degrades when it isn't used, so I wonder if the second line, not having seen use for many years potentially, has degraded. Or does it not work like that?



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  Reply # 1068808 18-Jun-2014 19:34
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NonprayingMantis: I understand that copper degrades when it isn't used, so I wonder if the second line, not having seen use for many years potentially, has degraded. Or does it not work like that?


Maybe, Not sure but possible. I am leaning towards a bad joint.

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  Reply # 1068817 18-Jun-2014 19:56
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I would say it's probably a degraded joint. At my old place we use to get them  2-3 weeks after every good storm and need them re done. 

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Chorus NZ

  Reply # 1081576 5-Jul-2014 19:34
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Depends on multiple factors, including Multiples on the line, Copper Diameter, services on the same cable etc etc.  Remember connection speed is best efforts above 15Mbps (or whatever it is) for VDSL.

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  Reply # 1081579 5-Jul-2014 19:42
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Although, I don't think you have much room to complain now with yourr 60Mbit or what ever it was VDSL

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  Reply # 1081600 5-Jul-2014 20:31
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If they are both in the same cable then youll be suffering cross talk



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  Reply # 1081614 5-Jul-2014 21:00
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Cbfd: If they are both in the same cable then youll be suffering cross talk


Check this out for a cross talk machine, Long wait for 17a has arrived on my line. Was at 66Mbp/s on 9dB SNR profile.


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  Reply # 1081631 5-Jul-2014 21:39
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Did chorus fix anythng on your line?



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  Reply # 1081632 5-Jul-2014 21:42
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Cbfd: Did chorus fix anythng on your line?


No, No such doing of Chorus.
(DLM)

I stared at it and threatened the DSLAM with fire and German automobile.

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  Reply # 1081636 5-Jul-2014 21:58
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Sorry but does voda use different copper?



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  Reply # 1081637 5-Jul-2014 22:09
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joker97: Sorry but does voda use different copper?


Umm, Obviously silver wiring given its the most conductive tangible metal. 

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  Reply # 1081641 5-Jul-2014 22:21
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As in, does voda use a different wire from big pipe?

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  Reply # 1081642 5-Jul-2014 22:25
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joker97: As in, does voda use a different wire from big pipe?


It's all the same wire. 







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