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Author Topic: advice for plotting my own graphs  (Read 54009 times)

asbokid

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Re: advice for plotting my own graphs
« Reply #135 on: May 18, 2012, 10:15:43 PM »

Just musing . . . With a "distinctive" QLN graph as that of rhohne, I wonder if Asbokid will apply his skills and tell us rhohne's location within the UK?  :P

Sorry, sergeant, can't triangulate on this one...



That noise looks suspicious like the EMF spew from a switched-mode power supply..

The noise peaks caused by PSU equipment tend to be at the switching frequency of the regulator in the PSU, and at the harmonics of that frequency... [1]

Analysing the distance between those harmonics (their periodicity) can be used to discover the fundamental frequency of the switching regulator.


[1] http://forum.kitz.co.uk/index.php/topic,10769.msg211846.html#msg211846
« Last Edit: May 18, 2012, 10:29:15 PM by asbokid »
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GigabitEthernet

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Re: advice for plotting my own graphs
« Reply #136 on: May 18, 2012, 10:18:42 PM »

I would just like to say a massive thank you to Bald_Eagle1 for all of his help. He really has been excellent. Now that everything is working, I guess the only thing left to do is setup error monitoring? But that isn't very urgent.
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GigabitEthernet

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Re: advice for plotting my own graphs
« Reply #137 on: May 18, 2012, 10:19:23 PM »


Hello asbokid,


Is there anything irregular about my QLN graph?

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snadge

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Re: advice for plotting my own graphs
« Reply #138 on: May 18, 2012, 10:30:56 PM »

Working perfectly now. Thanks snadge :) . Attatched are some sample graphs and stats. I am using the NETGEAR DGN2000 now and it shows QLN data.

no probs :) chuffed to bits now its working on DGTeam :)

I got the Ongoing Graphs (1 minute sampling) running on it too :)


@ ASBOKID - hahaha Edwina Currie ....  ive never expereinced an Earthquake yet (or chances are I have but not been aware of it) , so theres a petition eh? it hasnt got my signature...where is it!!!
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Aquiss - 900/110/16ms - TP-Link AR73

snadge

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Re: advice for plotting my own graphs
« Reply #139 on: May 18, 2012, 10:34:25 PM »

I would just like to say a massive thank you to Bald_Eagle1 for all of his help. He really has been excellent. Now that everything is working, I guess the only thing left to do is setup error monitoring? But that isn't very urgent.

I second that!!! :)

he has been great!!  those graphs are just what I wanted :) :)
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Aquiss - 900/110/16ms - TP-Link AR73

asbokid

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Re: advice for plotting my own graphs
« Reply #140 on: May 18, 2012, 10:59:40 PM »

Hello asbokid,

Is there anything irregular about my QLN graph?

Hello arobertson545,

The QLN graph doesn't look very pretty. Some nasty noise spikes on there, presumably from RFI ingress.  The noise doesn't take on the same appearance as interference from a PSU.   It looks like AM broadcast radio interference.

If you want to publish the raw data that you used to sketch the graphs, we can try to triangulate you using it! [1].

Incidentally, are you plotting enough subcarriers?  The graphs stop at DMT#256.   Should they be plotted up to DMT#512 for ADSL2+?

cheers, a

[1] http://en.wikipedia.org/wiki/Triangulation

« Last Edit: May 18, 2012, 11:02:02 PM by asbokid »
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snadge

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Re: advice for plotting my own graphs
« Reply #141 on: May 18, 2012, 11:19:27 PM »

look forward to this asbokid :) ,  he is on ADSL1 so his graphs ok...

thanks to these graphs I have been able to show the noise increase on my line from about 9pm onwards, see my post here
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Aquiss - 900/110/16ms - TP-Link AR73

GigabitEthernet

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Re: advice for plotting my own graphs
« Reply #142 on: May 19, 2012, 08:05:48 AM »

If you want to publish the raw data that you used to sketch the graphs, we can try to triangulate you using it! [1].

That sounds a bit scary. Will you be able to find out my address, etc or just the overall area?
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Bald_Eagle1

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Re: advice for plotting my own graphs
« Reply #143 on: May 19, 2012, 09:37:32 AM »

Could you fellas either post here or email me an example Plink log as gathered with DGTeam f/w installed AND an example Plink log as gathered with original Netgear f/w installed, for comparison purposes?

G.DMT, ADSL2 & ADSL2+ logs would be ideal.
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snadge

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Re: advice for plotting my own graphs
« Reply #144 on: May 19, 2012, 11:52:50 AM »

If you want to publish the raw data that you used to sketch the graphs, we can try to triangulate you using it! [1].

That sounds a bit scary. Will you be able to find out my address, etc or just the overall area?

just the area hehe, he was able to get within a few miles of my location..
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Aquiss - 900/110/16ms - TP-Link AR73

snadge

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Re: advice for plotting my own graphs
« Reply #145 on: May 19, 2012, 11:54:43 AM »

@ BA - find attached a P-Link log with DGTeam fw (ADSL2+)
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Aquiss - 900/110/16ms - TP-Link AR73

Bald_Eagle1

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Re: advice for plotting my own graphs
« Reply #146 on: May 19, 2012, 01:27:14 PM »

@ BA - find attached a P-Link log with DGTeam fw (ADSL2+)

I THINK I have now updated getADSLstats.BAT to populate modem_stats.log with more data (error counts etc.), to work with either DGTeam firmware or Netgear firmware.
The names for some of the data items are different depending which firmware is installed.

I'm not sure though if the login details work for both firmware types.
All being well, it should at least work with DGTeam firmware installed.

Anyway, could you try the attached version out?

If it works, email or post a modem_stats.log with say at least 30 minutes worth of the additional data.
The additional data should just be added to your ongoing modem_stats.log so there should be no need to start logging from the beginning again.

You should still be able to plot the same graphs that you are able to plot at the moment.

With this additional data, extra graphs should be able to be generated.
I need to test the output though before I post an updated graphing script. Hence the need for a modem_stats.log with the additional data included.

« Last Edit: May 19, 2012, 01:31:45 PM by Bald_Eagle1 »
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GigabitEthernet

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Re: advice for plotting my own graphs
« Reply #147 on: May 19, 2012, 01:28:36 PM »

Attatched is the QLN data.
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GigabitEthernet

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Re: advice for plotting my own graphs
« Reply #148 on: May 19, 2012, 01:55:54 PM »

I don't know if this was supposed to happen, but "START_LOGGING_24-7" errors now. Do I have to use the "getADSLstats" batch file manually?
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Bald_Eagle1

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Re: advice for plotting my own graphs
« Reply #149 on: May 19, 2012, 02:05:31 PM »

I don't know if this was supposed to happen, but "START_LOGGING_24-7" errors now. Do I have to use the "getADSLstats" batch file manually?

No, it should still be scheduled.

Problem is, I can't actually test things at my end  :(

Any error messages to report?

Are you using DGTeam or Netgear firmware?

Were you using this batch file name previously (getADSLstats.BAT)?

It should run silently via Task Scheduler.

It might be worth trying to run it manually to see how far it gets.
Various things should be echoded to screen while your run it manually.
« Last Edit: May 19, 2012, 02:09:15 PM by Bald_Eagle1 »
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