Re: **Post all your BSNL Dataone Related Queries Here**
praka123 said:
I have researched a little just now
sorry i earlier told G.lite what i meant was G.Dmt!
Found that the settings under adsl-settings shud be ideally modulation= G.Dmt,FDM=mode,Bitswap=doesnt matter
Hope it helps someone.
Check SNR in summary page for teh highest value=better settings.
Honestly praka, the SNR has nothing to do with the setting on your modem. Before I start, you should know that I am a support engineer working for a UK ISP, so you can take my word for it. Refer to my previous posts on the same thread.
Now, regarding the SNR margin, firstly it stands for 'Signal to Noise Ratio'. This is a parameter which helps in identifying how strong your signal is. As SNR is defined, it's the ratio of signal that is reaching your modem with regards to the Noise on the line and this is totally controlled by the ISP itself.
If you have high levels of static Noise on the line, you would need a higher SNR margin set on your line but at the same time, higher the SNR, the lesser the bandwidth will end up being. There is an ideal range in which the SNR works, somewhere between 12~45dB. If the SNR seems to go to abnormally high values, then you would end up getting less that 2Mbps at the same time it can't be too low as the synch will end up getting dropped every minute due to the noise on the line.
So, there is a very small bracket in which the ISP handles this. For example: In the UK, if a customer is complaining about very frequent disconnections, then after the basic checks show no problem, we go ahead and raise the SNR margin making sure that it doesn't affect the customer's synchronisation speeds.
So, honesly, SNR might keep varying +/-5 every time your modem makes a connection depending on the noise on the line. And certainly that has nothing to do with the settings on your modem.
Hope you get my point.