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SNR setting
Posted: Mon Sep 15, 2014 5:57 pm
by London Lad
Hi all,
Setting up my new 8800NL
Is there any difference in setting the SNR setting at '6' (no change) or '-1' (auto) ?
thanks
Re: SNR setting
Posted: Tue Sep 16, 2014 9:36 am
by billion_fan
London Lad wrote:Hi all,
Setting up my new 8800NL
Is there any difference in setting the SNR setting at '6' (no change) or '-1' (auto) ?
thanks
There should not be a difference
SNR table attached
Re: SNR setting
Posted: Sat Sep 20, 2014 3:43 pm
by London Lad
Thanks but surely there is a difference otherwise why have an 'auto' setting and a 'no change' setting ?
Re: SNR setting
Posted: Mon Sep 22, 2014 9:47 am
by billion_fan
London Lad wrote:Thanks but surely there is a difference otherwise why have an 'auto' setting and a 'no change' setting ?
Its just SNR value that adjusts the DB value there will always be a value that will equal -1 or no change (the values equal -db and +db and in the middle will be no change)
Re: SNR setting
Posted: Mon Sep 22, 2014 11:21 am
by London Lad
Maybe me being thick but it clearly says enter an SNR value of '6' for a result of no change to the target db OR an SNR value of -1 for a result of 'auto'
What I'm trying to find out is what does 'auto' do that is different from 'no change'
The table posted above doesn't show the -1 = auto option
Re: SNR setting
Posted: Mon Sep 22, 2014 11:28 am
by billion_fan
London Lad wrote:Maybe me being thick but it clearly says enter an SNR value of '6' for a result of no change to the target db OR an SNR value of -1 for a result of 'auto'
What I'm trying to find out is what does 'auto' do that is different from 'no change'
The table posted above doesn't show the -1 = auto option
As stated before there no difference between 6 and -1, this is Broadcom SNR tweaking code, I wrote the table more for people who want to drop the SNR by more then -5db
Re: SNR setting
Posted: Mon Sep 22, 2014 11:40 am
by London Lad
So are you saying the tweeking code of 6 and the tweeking code of -1 both equal no change to the target SNR ? If so why does broardcom have two values for the same result ?
Re: SNR setting
Posted: Mon Sep 22, 2014 12:00 pm
by billion_fan
London Lad wrote:So are you saying the tweeking code of 6 and the tweeking code of -1 both equal no change to the target SNR ? If so why does broardcom have two values for the same result ?
I'm not sure why mate, they work off the base value of 6db (BT default target SNR)
Re: SNR setting
Posted: Mon Sep 22, 2014 12:16 pm
by London Lad
I still don't get it.
As I understand it you enter a 'tweeking code' into the box labelled SNR in the settings of the router. The effect of this code is to alter the resultant target SNR as per the chart you posted.
So if I had for instance a current target SNR of 9db a tweeking code of 4 entered into the router settings box would result in a 2 db reduction leaving me with a target SNR of 7db, correct?
So entering a tweek code of 6 makes no change and results in a target SNR of 9db, correct?
So, in the instructions on the setting page it clearly says enter a tweekcode (not snr) of -1 for 'auto'............. what's auto mean ???
Re: SNR setting
Posted: Mon Sep 22, 2014 12:25 pm
by billion_fan
London Lad wrote:I still don't get it.
As I understand it you enter a 'tweeking code' into the box labelled SNR in the settings of the router. The effect of this code is to alter the resultant target SNR as per the chart you posted.
So if I had for instance a current target SNR of 9db a tweeking code of 4 entered into the router settings box would result in a 2 db reduction leaving me with a target SNR of 7db, correct?
So entering a tweek code of 6 makes no change and results in a target SNR of 9db, correct?
So, in the instructions on the setting page it clearly says enter a tweekcode (not snr) of -1 for 'auto'............. what's auto mean ???
auto means follow your SNR target set by the ISP
More information about the tests performed etc can be found here
viewtopic.php?f=18&t=807