Nishant
Staff member
Some modems takes 0.1 dB as a unit. So if your rate shown is 120, it should be noted as 12 dB.
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SNR Margin & Line Attenuation Rate - What does your stats mean.
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Some modems takes 0.1 dB as a unit. So if your rate shown is 120, it should be noted as 12 dB.
invisible007
Jio 4G | BSNL 3G | BSNL Fiber
My attenuation is 33dB , how it can be reduced ???
i mean what are the factors responsible for high attenuation
i mean what are the factors responsible for high attenuation
lesser the SNR dB worse the speed, right?
Downstream Upstream
SNR Margin (0.1dB): 85 110
Attenuation (0.1dB): 340 255
Output Power (dBm): 17.5 10.5
Attainable Rate (Kbps): 1156 643
Rate (Kbps): 935 636
D (interleave depth): 8 4
Delay (msec): 15.87 11.09
My plan is 675 BBG ULD and i am getting Happy Browsing offer. But speed is 1mb/s instead of 10mb/s. Do i have any hope of getting better speed?
@PhilipTombing your issue is on exchange end.
The line rate for you is just over 1Mbps and this is the reason for such slow speeds.
Talk to your local JTO and ask them to update your port speed on exchange end.
Also try and see if you can get a line change to improve values for SNR
The line rate for you is just over 1Mbps and this is the reason for such slow speeds.
Talk to your local JTO and ask them to update your port speed on exchange end.
Also try and see if you can get a line change to improve values for SNR
@Rajneesh Rana Thanks, will go to Local Exchange tomorrow.
@PhilipTombing
the important thing to do first is to improve your SNR margin for this Attenuation rate and line rate this SNR should have been much higher
the important thing to do first is to improve your SNR margin for this Attenuation rate and line rate this SNR should have been much higher
@PhilipTombing so much depend on SNR. as i said before your Attenuation rate is 34 so for 1 mbps connection you are getting SNR should be high. i think that is why @Rajneesh Rana also insisted you check your line.
from BSNL exchange end a change of port can cause a change in SNR,
changing the pair of your connection to the vertical box can change SNR
eliminating earth issues in line can change SNR
on your side, if you have too many breakages in drop wire SNR will be affected
Rusts that develop in end of connections that are made in you house can cause SNR to go low
a faulty splitter can impact SNR
even different modems read SNR differently
a underpowering modem adapter can cause SNR to read less.
there are many chances, check all these,
in the present situation when you increase the line speed, this SNR rate goes too low causing frequent disconnection.
i have heard DSLAM used in exchange can sense SNR and apply speed accordingly may be that is why the speed reduced to 1 mbps.
did you used to get more speed before?
do you have disturbance or nose in your telephone ?
from BSNL exchange end a change of port can cause a change in SNR,
changing the pair of your connection to the vertical box can change SNR
eliminating earth issues in line can change SNR
on your side, if you have too many breakages in drop wire SNR will be affected
Rusts that develop in end of connections that are made in you house can cause SNR to go low
a faulty splitter can impact SNR
even different modems read SNR differently
a underpowering modem adapter can cause SNR to read less.
there are many chances, check all these,
in the present situation when you increase the line speed, this SNR rate goes too low causing frequent disconnection.
i have heard DSLAM used in exchange can sense SNR and apply speed accordingly may be that is why the speed reduced to 1 mbps.
did you used to get more speed before?
do you have disturbance or nose in your telephone ?
@PhilipTombing i think it has something to do with the port you are allocated. not sure just a guess. register a complaint and lets see how it goes. i think it has something to do at their end.
