Thread: Pls help me, find what's my SNR value

I use Dlink GLB-502T ADSL+2 Router cum modem. what is my SNR value in attachment picture? my speed is very very slow. pls help me.

In your case the DS Margin is SNR Downstream Margin and US Margin is SNR Upstream margin.

You SNR is 13 db (down) and 2 db (Up). These are very low. You will face problems - read this article: SNR Margin and Line Attenuation - What do they mean?

Thanks for the details. It helped me also to know more about the SNR.

1.If you can change the Trained modulation to
GDMT
SNR will increase slightly, and a
stable connection, also may be possible.

2. Are you using an external ADSL splitter to connect to the modem ?
( Appears not necessary for GLB502T confirm. )

3. For low speed:
Please try opendns 208.67.220.220 and 208.67.222.222

Para two: SNR Signal to Noise Ratio.
Excellent article given by @just4kix.
Example: For A TV station reception we use a directional beam Antenna( Olden days ! ONLY DD!)
If your picture is fussy SNR is low meaning wanted signal is low and Noise high. .

Reorient the antenna and we get a clear picture.
SNR value increases. ( Also for Portable FM Radio)

Same way for BB data signals/.
Line loss/connection contacts/distance from exchange etc affects your BB connection.

For reference :
DLINK GLB-502T ADSL2+ Router configuration for BSNL dataone | I am Sumeet
DLINK India's user manual>
D

Thanks a lot to all ............

Originally Posted by essbebe

1.If you can change the Trained modulation to
GDMT
SNR will increase slightly, and a
stable connection, also may be possible.

2. Are you using an external ADSL splitter to connect to the modem ?
( Appears not necessary for GLB502T confirm. )

3. For low speed:
Please try opendns 208.67.220.220 and 208.67.222.222

Para two: SNR Signal to Noise Ratio.
Excellent article given by @just4kix.
Example: For A TV station reception we use a directional beam Antenna( Olden days ! ONLY DD!)
If your picture is fussy SNR is low meaning wanted signal is low and Noise high. .

Reorient the antenna and we get a clear picture.
SNR value increases. ( Also for Portable FM Radio)

Same way for BB data signals/.
Line loss/connection contacts/distance from exchange etc affects your BB connection.

For reference :
DLINK GLB-502T ADSL2+ Router configuration for BSNL dataone | I am Sumeet
DLINK India's user manual>
D

How to i change Trained Modulation ADSL_2plus to GDMT. Help me pls!!!!!!!

Originally Posted by jon08

How to i change Trained Modulation ADSL_2plus to GDMT. Help me pls!!!!!!!

Are u able to log into the web interface of the modem/router? It can be accessed by typing 192.168.1.1 on the browser address bar. Once u login, look closely at the various tabs being listed in the page. U should specifically check for ADSL Modulation/DSL Modulation and in that option u will be able to select the adsl modulation required (from ADSL2+ to G.DMT).

Originally Posted by cool_techie_tvm

Are u able to log into the web interface of the modem/router? It can be accessed by typing 192.168.1.1 on the browser address bar. Once u login, look closely at the various tabs being listed in the page. U should specifically check for ADSL Modulation/DSL Modulation and in that option u will be able to select the adsl modulation required (from ADSL2+ to G.DMT).

I use DLINK GLB-502T router cum modem. I search every page in 192.168
.1.1 address page but nothing see about Trained Modulation .

Originally Posted by jon08

I use DLINK GLB-502T router cum modem. I search every page in 192.168
.1.1 address page but nothing see about Trained Modulation .

Go to Setup-->Modem. Any of the modes can be set in there.

Originally Posted by essbebe

1.If you can change the Trained modulation to
GDMT
SNR will increase slightly, and a
stable connection, also may be possible.

2. Are you using an external ADSL splitter to connect to the modem ?
( Appears not necessary for GLB502T confirm. )

3. For low speed:
Please try opendns 208.67.220.220 and 208.67.222.222

Para two: SNR Signal to Noise Ratio.
Excellent article given by @just4kix.
Example: For A TV station reception we use a directional beam Antenna( Olden days ! ONLY DD!)
If your picture is fussy SNR is low meaning wanted signal is low and Noise high. .

Reorient the antenna and we get a clear picture.
SNR value increases. ( Also for Portable FM Radio)

Same way for BB data signals/.
Line loss/connection contacts/distance from exchange etc affects your BB connection.

For reference :
DLINK GLB-502T ADSL2+ Router configuration for BSNL dataone | I am Sumeet
DLINK India's user manual>
D

MANY MANY THANKS TO essbebe. I change my Trained modulation to GDMT. Now its works fine.......

I change my Trained modulation to GDMT. Now its works fine.......

Please post latest SNR details. screen shot as annexure.
Also WHERE you changed the mod to GDMT. in modem.

Originally Posted by cool_techie_tvm

Go to Setup-->Modem. Any of the modes can be set in there.

Thanks. i change my modulation.

Originally Posted by essbebe

Please post latest SNR details. screen shot as annexure.
Also WHERE you changed the mod to GDMT. in modem.

I attached two screen shot.......