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Anonymous
(Unregistered)Sun 07-Oct-12 17:08:09
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SNR Question


[link to this post]
 
Hi all , Have been upgraded to ADSL2+ for a couple of months now and have always had a noise margin of about 15db. Today i have just noticed that it has been reduced to 6db, the Line Attenuation of 23.0 db remains the same, is this a good thing or not.
These are the router stats i have today.

ADSL Link Downstream Upstream
Connection Speed 14330 kbps 1088 kbps
Line Attenuation 23.0 db 12.6 db
Noise Margin 6.6 db 5.6 db
Standard User RobertoS
(sensei) Sun 07-Oct-12 17:15:20
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Re: SNR Question


[re: Anonymous] [link to this post]
 
What was your connection speed when it was 15dB? I'm guessing 10-11Mbps.

My broadband basic info/help site - www.robertos.me.uk | Domains,website and mail hosting - Tsohost.
Connection - Plusnet Extra Fibre (FTTC). Sync ~ 56.0/13.9Mbps @ 600m. - BQM

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Standard User b4dger
(knowledge is power) Sun 07-Oct-12 18:15:11
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Re: SNR Question


[re: Anonymous] [link to this post]
 
Yes that's a 'good thing' smile

It looks like your line is running nice and stable and BT's systems have reduced your target noise margin and increased your sync(connection speed).

Your attenuation will remain roughly the same as that's an indication of your line length/quality. Have you also been monitoring your sync so you know if your connection speed has changed?


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Standard User XRaySpeX
(eat-sleep-adslguide) Sun 07-Oct-12 18:21:19
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Re: SNR Question


[re: Anonymous] [link to this post]
 
Yes, it's good; most good lines get 6 or 3 dB NM, but your sync speed should be about 5 Meg more.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC
Anonymous
(Unregistered)Sun 07-Oct-12 21:13:30
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Re: SNR Question


[re: XRaySpeX] [link to this post]
 
Thanks Guys, Glad to know that it is a good sign that things are ok, unfortunately i have not been monitoring my connection speed but these are my router stats for the connection speed at the moment.

Connection Speed
Downstream Upstream
14330 kbps 1088 kbps

Do they look ok.
Standard User Zarjaz
(knowledge is power) Sun 07-Oct-12 21:23:01
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Re: SNR Question


[re: Anonymous] [link to this post]
 
As X-ray said, it looks OK, but I would expect the downstream sync rate to be higher with that attenuation. What do the router stats look like if you reconnect the router in the test point of the NTE, with all else disconnected ?

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