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Standard User j0hn83
(knowledge is power) Tue 01-Mar-22 10:53:49
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Re: Getting a 3db SNR Margin on NowTV Broadband? *DELETED*


[re: merrymouse] [link to this post]
 
The HG612 displays many incorrect stats. Some are in the wrong field, some are duplicates from other fields, other stats are just plain wrong.

The sync speed shows you at the full 80/20.

I think the SNRM/noise margin shown may also be incorrect.

You need to connect via Telnet or ssh and run some commands to get accurate stats.
Standard User merrymouse
(newbie) Tue 01-Mar-22 10:58:46
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Re: Getting a 3db SNR Margin on NowTV Broadband?


[re: j0hn83] [link to this post]
 
Thanks for reply. You will be able to read more into these stats more than I will.
https://i.postimg.cc/qvXKwnBX/stats.jpg
https://i.postimg.cc/Dz6qvGty/speed-test.jpg
Standard User candlerb
(knowledge is power) Tue 01-Mar-22 10:59:05
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Re: Getting a 3db SNR Margin on NowTV Broadband?


[re: francisuk25] [link to this post]
 
In reply to a post by francisuk25:
76Mbps, your looking at 77824kbps if you count 1Mb as 1024kbps
18Mbps, your looking at 18432kbps if you count 1Mb as 1024kbps


This is wrong. Data comms *never* use power-of-two units. This has been true from the days of ISDN voice channels (8,000 samples per second, 8 bits per sample = exactly 64,000 bits per second). Gigabit ethernet is 1,000,000,000 bits per second.

If your DSL modem reports 79,999kbps then it's 79,999,000 bits per second.

EDIT: the page you linked to gives the correct definitions of kilobits per second and megabits per second - but then a completely spurious conversion table and spurious "How to Convert" section, which ignore those definitions.

Edited by candlerb (Tue 01-Mar-22 11:02:06)


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Standard User j0hn83
(knowledge is power) Tue 01-Mar-22 11:07:51
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Re: Getting a 3db SNR Margin on NowTV Broadband?


[re: francisuk25] [link to this post]
 
In reply to a post by francisuk25:
Most FTTC lines technical maximum speed is 76Mbps/18Mbps, Fair as i know, AAISP and Vivaciti do the full 80/20 profiles.


AAISP don't even do their own profiling. It's done by their wholesaler.

All providers sync at the full 80Mb.
AAISP use the BT Wholesale IP profile on their BT Wholesale lines and they use Talktalks profile system on their Talktalk lines. What they show in their control panel is what's passed on to them.
You don't get any more throughput with AAISP than you do with any other ISP.

It's all down to the chipset of the modem and the DLM profile in use.
Different DLM profiles come with different throughput levels.

Fastpath will give an IP Profile 96.79% of the sync speed.
Retx Low gives an IP Profile 96.69% of the sync speed.
Retx High gives an IP Profile between 91-92% of sync speed.

https://www.unitconverters.net/data-transfer/kbps-to...
76Mbps, your looking at 77824kbps if you count 1Mb as 1024kbps
18Mbps, your looking at 18432kbps if you count 1Mb as 1024kbps


That's confusing things for no reason at all.

In networking, data, throughput etc 1Mb is almost always 1000 Kb

A modem synced at 80Mbps is synced at 80000Kbps.
A speed test of 76Mbps is 76000Kbps

Edited by j0hn83 (Tue 01-Mar-22 11:09:34)

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