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Standard User bob12345
(learned) Mon 18-Feb-13 10:00:56
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Netgear DG834G v4 - reduce noise margin by 7db?


[link to this post]
 
Hi

I am wanting to reduce my noise margin by 7db but not sue what value to enter as its not in the table on kitz website.

http://www.kitz.co.uk/routers/dg834GT_targetsnr.htm

Can some one please tell me , thank you
Standard User RobertoS
(sensei) Mon 18-Feb-13 10:03:16
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: bob12345] [link to this post]
 
We need to know what value it is at, read immediately after an untweaked reconnection.

My broadband basic info/help site - www.robertos.me.uk | Domains,website and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 54.3/15.4Mbps @ 600m. - BQM

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.
Standard User bob12345
(learned) Mon 18-Feb-13 10:11:26
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: RobertoS] [link to this post]
 
Sorry i did not include that it is 11.9db, thanks

i did -5.5db and these are my stats as of now

ADSL Link Downstream Upstream
Connection Speed 7776 kbps 448 kbps
Line Attenuation 39.0 db 20.5 db
Noise Margin 6.2 db 21.0 db

i want another 200kbps to get a 7mb profile

Edited by bob12345 (Mon 18-Feb-13 10:13:21)


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Standard User RobertoS
(sensei) Mon 18-Feb-13 11:49:34
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: bob12345] [link to this post]
 
Kitz is a bit confusing there, and I don't quite follow the logic either, from my understanding of the way it works. I shall have to check where the validity of "negative" values comes from.

However, if we assume Kitz is right, do you mean you entered adslctl configure --snr 1 ? And that gave you around 6dB?

Which leaves the question of why your target noise margin is at 12dB in the first place.

My broadband basic info/help site - www.robertos.me.uk | Domains,website and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 54.3/15.4Mbps @ 600m. - BQM

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.
Standard User bob12345
(learned) Mon 18-Feb-13 12:15:00
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: RobertoS] [link to this post]
 
In reply to a post by RobertoS:
However, if we assume Kitz is right, do you mean you entered adslctl configure --snr 1 ? And that gave you around 6dB?


Yes correct smile
Standard User XRaySpeX
(eat-sleep-adslguide) Mon 18-Feb-13 15:07:15
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: bob12345] [link to this post]
 
Try N = 65519 which is the router's way of representing -17.

But all these figures are only approximate.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
Standard User bob12345
(learned) Mon 18-Feb-13 15:29:13
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: XRaySpeX] [link to this post]
 
Hi thanks for your reply my starting figure is 12db and want to get down to 5/4.5db.

i see your reply says -17 i would like -7, thank you
Standard User Apprentice
(knowledge is power) Mon 18-Feb-13 16:31:12
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: bob12345] [link to this post]
 
Hi thanks for your reply my starting figure is 12db

Is the noise margin still 12dB when the router is connected to the TEST socket within the NTE5 type master socket.

Alastair

omadasafisho
Standard User tommy45
(knowledge is power) Mon 18-Feb-13 16:34:23
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: bob12345] [link to this post]
 
In reply to a post by bob12345:
Hi

I am wanting to reduce my noise margin by 7db but not sue what value to enter as its not in the table on kitz website.

http://www.kitz.co.uk/routers/dg834GT_targetsnr.htm

Can some one please tell me , thank you
You could forget the faffing that probably won't survive a power cycling of the router ,& download &flash the router fw with dgteam fw, that has a the option to lower/raise tsnr from within the GUI, and it sticks, no need to reset everytime you power cycle the router

Standard User XRaySpeX
(eat-sleep-adslguide) Mon 18-Feb-13 17:06:18
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Re: Netgear DG834G v4 - reduce noise margin by 7db?


[re: bob12345] [link to this post]
 
In reply to a post by bob12345:
i see your reply says -17 i would like -7, thank you
You are confusing yourself frown

In the table you link, I'm giving the value for N = -17 which is actually represented as N = 65519 for your desired change in NM of -7 dB.

wink Just follow my instructions on the label and you will get to the value you want, tho', as pointed out, I can't guarantee whether your router will stand for it.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
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