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Author Topic: G.Fast in Rochdale  (Read 10642 times)

re0

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Re: G.Fast in Rochdale
« Reply #45 on: October 20, 2018, 06:46:40 PM »
I hope you're feeling better now.

I can't say I have the answer. The SNRM has historically been a bit all over the place but it looks like target is 3 dB at the moment. Perhaps the DLM is business as usual ("DLM maketh, DLM taketh") since maybe there are some parameters responsible for the drop in speed, but I don't know about G.fast and probably won't until I get to play with it myself or gather enough statistics from the forum. I would have thought that the parameters would have not been wholly responsible and perhaps it's due to the fickle nature of interference with the frequencies utilised by G.fast.

By the way, it looks some historical screenshots are not available. Most have a few from September, one from October. Not much else there.

Maybe you have the bitloading and SNR logs from when the sync was at its high point and now? It would be interesting to make a comparison.

I guess I have to wait until the next episode to find out whether the speed increases. ;)
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Browni

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Re: G.Fast in Rochdale
« Reply #46 on: October 20, 2018, 07:45:41 PM »
There's lot's of data hiding behind the scenes but it's not my software so haven't the foggiest if it can be displayed in a meaningful format, most graphs fail probably due to unknown data ranges.

Does the bitloadingText.zip file attached throw any clues?



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re0

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Re: G.Fast in Rochdale
« Reply #47 on: October 20, 2018, 07:58:35 PM »
Perhaps you could chuck us the SNR logs as well so I can graph them together?
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Browni

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Re: G.Fast in Rochdale
« Reply #48 on: October 20, 2018, 08:07:15 PM »
Is this the one you mean?
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re0

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Re: G.Fast in Rochdale
« Reply #49 on: October 20, 2018, 08:08:17 PM »
Apparently so. I'll look at it when I get bored. :D
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Browni

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Re: G.Fast in Rochdale
« Reply #50 on: October 20, 2018, 08:08:38 PM »
 :lol:
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re0

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Re: G.Fast in Rochdale
« Reply #51 on: October 20, 2018, 09:18:57 PM »
Graphs based on data from 13:36:16, 2018-09-30.

Strong downstream sync 265467 Kbps. Upstream 36788 Kbps.
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re0

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Re: G.Fast in Rochdale
« Reply #52 on: October 20, 2018, 09:20:39 PM »
Graphs based on data from 18:00:03, 2018-10-12.

Lesser downstream sync 202667 Kbps. Upstream 36623 Kbps.
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re0

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Re: G.Fast in Rochdale
« Reply #53 on: October 20, 2018, 09:23:48 PM »
That downstream graph is looking very janky both SNR and bitloading. Not sure what could have changed.

Also just a short disclaimer: I cannot be held responsible for my shoddy work if anyone becomes injures or dies as a result of the bits being slightly shifted or inaccurately represented. :P
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burakkucat

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Re: G.Fast in Rochdale
« Reply #54 on: October 20, 2018, 09:43:58 PM »
Quote from: re0 on October 20, 2018, 09:23:48 PM
That downstream graph is looking very janky both SNR and bitloading.

Yuck.  :yuck:

b*cat waits for a Huawei MT992 to be donated to The Cattery. (Though looking at the images of the PCB I'm not sure where a connection should be made for the serial console.)
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re0

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Re: G.Fast in Rochdale
« Reply #55 on: October 20, 2018, 09:51:24 PM »
I feel a bit disappointed that the next person to reply (I'm looking at you, b*cat) didn't joke about my disclaimer and my liability for injury if the data is accurately represented since it was not explicit. I'm sorry... I'm terrible. :lol:

Quote from: burakkucat on October 20, 2018, 09:43:58 PM
b*cat waits for a Huawei MT992 to be donated to The Cattery. (Though looking at the images of the PCB I'm not sure where a connection should be made for the serial console.)
You're probably going to be waiting a while. :D Anyway, for the majority of the forum users, they're going to want an easy way to retrieve stats. This method will only be for the few. People who want stats will likely opt for the ASUS DSL-AC88U (like Browni) or next equivalent modem or modem-router combo that allows stats retrieval.

Good luck with getting one. I did mention in another topic somewhere that Alibaba has sellers stocking it but it's not a site I've used before.
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j0hn

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Re: G.Fast in Rochdale
« Reply #56 on: October 21, 2018, 12:50:56 AM »
The black model on Alibaba would help initial examination and give an idea as to what needs done. A cheap machine to make mistakes.

No idea what the minimum order value is on the Alibaba listings it's been a couple months. Might be a decent modem for FTTC.

Who's chipping in on a bulk buy? ;D

You would still need to source an OpenReach branded MT992 though.
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burakkucat

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Re: G.Fast in Rochdale
« Reply #57 on: October 21, 2018, 12:55:11 AM »
Quote from: j0hn on October 21, 2018, 12:50:56 AM
The black model on Alibaba would help initial examination and give an idea as to what needs done. A cheap machine to make mistakes.

No idea what the minimum order value is on the Alibaba listings it's been a couple months. Might be a decent modem for FTTC.

Who's chipping in on a bulk buy? ;D

I would be interested to know what sort of scale in terms of quantity and price per unit you could negotiate.  :)

Quote
You would still need to source an OpenReach branded MT992 though.

Yes, agreed.
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re0

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Re: G.Fast in Rochdale
« Reply #58 on: October 21, 2018, 01:19:20 AM »
Quote from: j0hn on October 21, 2018, 12:50:56 AM
No idea what the minimum order value is on the Alibaba listings it's been a couple months. Might be a decent modem for FTTC.
All that I can see have a piece minimum order of 1. It may be possible to negotiate a price as low as 50 USD (but I doubt that in small quantities). Then you'd have to worry about shipping and VAT, and even customs if you intended to buy more than a couple.
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Weaver

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Re: G.Fast in Rochdale
« Reply #59 on: October 23, 2018, 07:41:45 AM »
So roughly 70 times faster than one of my lines, downstream. Another world.
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