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Standard User dneb
(regular) Thu 05-Apr-07 17:08:54
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DMT Stats/Opinions?


[link to this post]
 
Click here for my DMT stats.

Forgive my naivety, but I have two questions:

1) What is the relevance of the three SNR dropouts?

During one I was browsing. No noticeable problems. During the second, I was using an MMOG. No noticeable problems. During the third, the downstream measurement part of a speed test was underway, and it even returned my highest downstream result so far (13.8Mbps).

The router is not losing sync at all.

2) Should I be bothered about the error statistics?

dneb - Now with Be* Unlimited
Sync: 15454/1325 (Kbps)
Attn: 35.0/17.2 SNR: 3.4/6.8

Powered by a Netgear DG834N (F/w 1.01.06)

Edited by dneb (Thu 05-Apr-07 17:09:35)

Standard User cahaddras
(experienced) Thu 05-Apr-07 17:58:56
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Re: DMT Stats/Opinions?


[re: dneb] [link to this post]
 
I'm not clear on what DMT means exactly by an apparent 40% drop in 'overall SNR per tone'. However they probably just represent bursts of noise. As you didn't lose sync they must have been short enough not to matter or simply within the margin (low as it is!).

More unusual is why the SNR is noticeably so much worse in the upper half. In most cases I've seen the falloff has been rather more gradual. In fact it's more normal to get a small increase in SNR in the early part of the upper half, as this doesn't suffer from the usual crosstalk from ADSL1 pollution.
Standard User dneb
(regular) Thu 05-Apr-07 22:45:05
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Re: DMT Stats/Opinions? *DELETED*


[re: cahaddras] [link to this post]
 
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