My connection shows
local line attenuation 63 dB
remote line attenuation 31.5dB
Local SNR Margin 7.5dB
Remote SNR 17dB

I live a long way from the exchange and BT only recently agreed to connect
me despite the long wire length to the exchange.
My question is that sometimes whewn I connect I get Local SNR Margin of 2
or 3 dB and sometimes 7 or 8.
How does this happen? Is it unusual to connect with 3dB and still get
braodband running. It works OK at the lower levels but drops out
occasionally.
Geoff

Geoff Venn wrote:
Anything below a SNR of 6db can cause you all sorts of problems, slow
speends, drop outs etc....

Have you tried disconnecting all extension wiring & pluging into the master
to see what your results are? If it does make an improvement there are a
few things you could try. Now if you're using the only telephone socket on
the line it becomes more problematic...

On Fri, 24 Sep 2004 20:11:14 +0100, Kráftéé wrote:

the house, and get a "clean line" at 7 or 8dB. Is there an external
influence at work here?
Geoff

Geoff Venn wrote:


Sorry to side track this, but could someone explain the relevance of
these figures please.

--
Regards


David G
(remove r u n)

On Sat, 25 Sep 2004 14:20:12 +0100, Brian Morrison wrote:

cause changes in the SNR that can persist and which change if I reboot.
Geoff>

On Sat, 25 Sep 2004 17:02:12 +0100, David G <notreallyhere@sure>
wrote:

Local means downstream (i.e. the figures relevant to data coming from
the internet to your PC), while remote means upstream (i.e. relevant
to data going from your PC to the internet).

Attenuation is the loss of signal, expressed in Decibels (dB). Until
the 6th, you generally could not get 512K ADSL if the downstream
attenuation was more than 60dB. The lower the figure, the stronger the
signal you are getting.

SNR is Signal-to-Noise Ratio, again expressed in dB. With this one,
the higher the value the better. I've seen suggestions that anything
under 10 is likely to cause problems, and anything under about 5 is
likely to be unworkable.

"David G" <notreallyhere@sure> wrote in message
news:4155c07c@news.greennet.net...
I would like to ask where you can obtain these readings my modem/router
(Netgear DG814) does appear to show them anywhere

Regards

Roy

Alex Heney wrote:
Thanks

--
Regards


David G
(remove r u n)

In message <cj4mgr$o5$1@hercules.btinternet.com>, RChick
<roy.chicken@nospam.btinternet.com> writes
Some ADSL equipment, including your DG814, doesn't give such
information.



David
--
David Wood
david@wood2.org.uk

At what frequency is local line attenuation measured?

There may be a firmware update for your router that will allow you to see
these figures. I upgraded my DG834 to the latest version and it displays
them.

"RChick" <roy.chicken@nospam.btinternet.com> wrote in message
news:cj4mgr$o5$1@hercules.btinternet.com...

On Sat, 25 Sep 2004 21:04:27 +0000 (UTC), "RChick"
<roy.chicken@nospam.btinternet.com> wrote:

Then you are using older firmware. The DG834G provides this
information only on routers running firmware v1.05 and no earlier.

If using this firmware, log into your administrator account and on the
page that comes up there are two buttons at the button. From memory
(I am at work) they are "show statistics" and "connection status".

"Show Statistics" is the one you want. Click on that and a new window
opens - it contains information on the uptime of the router and the
attenuation and SNR of the ADSL line.

Simon Pleasants <plesbit@hotmail.com> wrote:

:>I would like to ask where you can obtain these readings my modem/router
:>(Netgear DG814) does appear to show them anywhere

: Then you are using older firmware. The DG834G provides this
: information only on routers running firmware v1.05 and no earlier.

You are incorrect! *ONLY* the DG834 (+G) firmware provides the ADSL signal and
S/N figures. None of the older Netgear units have this - under ANY firmware!