Cable Forum - SNR Issue.

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AlbionDaz

20-10-2008 23:16

SNR Issue.

Hi Guys.

A Virgin techie on the News Server,has replied to me about my problem,it seems I have a intermittent SNR issue on my UBR,what does it mean and is it usually fixed pretty quickly,as I have only been a customer a few months and the 1st month aside,its been pretty awful being with VM so far?

Axegrinder

21-10-2008 08:39

Re: SNR Issue.

Please post your modem stats. ;)

Log into modem by clicking the link >http://192.168.100.1/

Username and password if required both "root" without quotes.

Do NOT post your MAC address or serial number.

whydoIneedatech

21-10-2008 13:20

Re: SNR Issue.

Quote:

Originally Posted by AlbionDaz (Post 34657905)

It will cause you to have an intermittent connection issues and probably suffer from constant disconnections and looking in the modem config pages will not tell you anything as its an SNR issue on the uBR and modem SNR and power levels tend to look normal.

Ignitionnet

21-10-2008 13:22

Re: SNR Issue.

What he said, you can only see your downstream SNR on your modem, upstream SNR which is where these issues tend to be is only visible to VM.

whydoIneedatech

21-10-2008 13:27

Re: SNR Issue.

Quote:

Originally Posted by Broadbandings (Post 34658118)

What he said, you can only see your downstream SNR on your modem, upstream SNR which is where these issues tend to be is only visible to VM.

Is that what I meant, thanks for the information regarding it being Upstream SNR.;)

Kymmy

21-10-2008 13:53

Re: SNR Issue.

Quote:

Originally Posted by AlbionDaz (Post 34657905)

I have a intermittent SNR issue on my UBR,what does it mean

In simple terms, the signal coming down the cable is measured in relation to the static on the cable, this give you your SNR (signal to noise ratio). If the ratio is low then that means that the signal might be lost.

If you think about it like one voice in a crowd, as long as the crown whispers you can hear the one voice, but if either the one voice goes lower or the crowd goes higher you'll lose the one distinct voice.

That's happening every now and them on your signal hence it'll cause the modem to lose track of the signal :)

whydoIneedatech

21-10-2008 14:47

Re: SNR Issue.

Quote:

Originally Posted by Kymmy (Post 34658138)

In simple terms, the signal coming down the cable is measured in relation to the static on the cable, this give you your SNR (signal to noise ratio). If the ratio is low then that means that the signal might be lost.

If you think about it like one voice in a crowd, as long as the crowd whispers you can here the one voice, but if either the one voice goes lower or the crowd goes higher you'll lose the one distinct voice.

That's happening every now and them on your signal hence it'll cause the modem to lose track of the signal :)

Nice analogy, easy to understand.;)

xspeedyx

21-10-2008 16:03

Re: SNR Issue.

Quote:

Originally Posted by Kymmy (Post 34658138)

In simple terms, the signal coming down the cable is measured in relation to the static on the cable, this give you your SNR (signal to noise ratio). If the ratio is low then that means that the signal might be lost.

If you think about it like one voice in a crowd, as long as the crowd whispers you can here the one voice, but if either the one voice goes lower or the crowd goes higher you'll lose the one distinct voice.

That's happening every now and them on your signal hence it'll cause the modem to lose track of the signal :)

I dont understand :confused: (joking)

AlbionDaz

22-10-2008 14:45

Re: SNR Issue.

Thanks for help :)

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