Thread: SNR and Attenuarion values

Please check My SNR values and Line attenuation values,and tell me is that stable or poor.Im currently using UL 750 Plan from BSNL(512 Kbps).Im experiencing frequent low speed.Any light in this matter will be appreciated...Attached screenshot

This may help you.
source is from meetdilips earlier post
12.jpg

Go to modem menu and under DSLdisable button ADSL2+
Bitswap enabled. SRA disabled. Annex M disabled/.
SAVE reboot. Wait for 2 minutes.
Recheck SNR Attn values.
Feedback.

Para two;
Speed has been upgraded to 1 Mbps/6GB d/l /then 512Kbps as usual.

essbebe are the current values not ok ?

What conclusion you reached from table given in post no 2?


Members like response/action to their suggestions/tweaks
and feedback +ve or -ve and then counter questions!!!

Followed the steps of post 2...SNR Margin reduced to 47 now...Everything else is all the same...Is it good enough

These values are taken into account only when there are drastic speed fluctuations and frequent disconnections.
Btw, what's the speed you're getting?
Check here! My Broadband Speed - Broadband Speed Tester and post the SS in here.
Feedback.

Attached screenshot of speed test results...Please check speed test results with my attenuation values,and tell me is it good enough or my speed is getting affected

It's decent speed for the mentioned plan.Are you getting that much speed constantly or it's varying quite a lot?
Do multiple speed tests and then put the SS of all of 'em.

No...its constant...Just wanted to get the attenuation values checked with my speed,Im not having any trouble whatsoever,just the values was eating my mind,thought it should be checked by some experts...Im glad for the help.Thread can be closed
~Regards

Read the first line of post no.7 properly, you'll find your solution.

Download this application and select optimal values.
tcp/ip optimizer from speedguide.net.
Keep the slider at about 1.5 Mbps speed.
Now Home 750 u/l speed is upto 1 Mbps/6GB/FUP/ then 512 Kbps.

Thank you Guys for all the help

Ideally it SNR margin must be atleast 18dB or more to have stable ADSL connection. Attenuation should be lower as possible like 10 db or less than 20 db.
To have a stable connection SNR (Signal to noise ratio is much important).
You would not be able to adjust these parameter from Modem, you need to check the joints you have in your telephone cable. Or if its old, see if you can get a replacement.
If you do not find any problem in your household, call up the BSNL guys to check the line they will fix it.

Please check My SNR values and Line attenuation values,and tell me is that stable or poor.

Statistics -- ADSL
Mode: ADSL2+

Line Coding: Trellis On
Status: No Defect
Link Power State: L0

Downstream Upstream
SNR Margin (dB): 23.1 5.9
Attenuation (dB): 10.5 3.1
Output Power (dBm): 10.6 19.0
Attainable Rate (Kbps): 9587 582
Rate (Kbps): 1996 490

MSGc (number of bytes in overhead channel message): 70 11
B (number of bytes in Mux Data Frame): 24 55
M (number of Mux Data Frames in FEC Data Frame): 1 2
T (Mux Data Frames over sync bytes): 2 1
R (number of check bytes in FEC Data Frame): 16 14
S (ratio of FEC over PMD Data Frame length): 0.4249 7.7538
L (number of bits in PMD Data Frame): 772 130
D (interleaver depth): 64 4
Delay (msec): 6 7

Super Frames: 644165 649963
Super Frame Errors: 0 25278
RS Words: 97913130 1060734
RS Correctable Errors: 1274 1373043
RS Uncorrectable Errors: 0 N/A

HEC Errors: 0 129997
OCD Errors: 0 0
LCD Errors: 0 0
Total Cells: 48946992 1915434369
Data Cells: 195884 299372945
Bit Errors: 0 12476664

Total ES: 0 15602839
Total SES: 0 15595641
Total UAS: 18 15590967

your values are good.

can you please tell the distance between your home and exchange.

@Ajay TP, are you facing any issues?

SNR.PNG

Please review my values.

@satyamsit please see post 5

Originally Posted by maxsteel

@satyamsit please see post 5

Have seen that and understood the fact that my SNR is quite ok .. getting a confused abt my attn .. its below 20db and above 20db in each cases.. what does it mean?

it is ok, nothing to worry about.

by the way your upload speed is set to low by your exchange. For 750ULD plan it should be set to 512

Originally Posted by maxsteel

it is ok, nothing to worry about.

by the way your upload speed is set to low by your exchange. For 750ULD plan it should be set to 512

And its set to 256 i guess. shud i lodge a complaint?

since you had already launched the complain for low download speed, so ask them about upload speed when you get reply from them.

Dont launch another complain for it.