On Thursday, in article
<Q7Ecf.18915$(E-Mail Removed)>
(E-Mail Removed) "Makara@Starfleet" wrote:
> "Phil Thompson" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
> On Wed, 09 Nov 2005 23:48:42 +0000, Alex Heney <(E-Mail Removed)>
> wrote:
>
> >If you are using a router, rather than just a modem, it will almost
> >certainly have a page somewhere showing those figures.
>
> most modems can disclose them too, see
> http://www.kitz.co.uk/adsl/frogstats.htm
>
> ========
>
>
>
> Ah, thanks - I have Dr Speedtouch - this is what it said - what do these
> mean?
>
> ReceiveAttenuation_dB= 23
> ReceiveMargin_dB= 31
>
> SendAttenuation_dB= 11
> SendMargin_dB= 29
They mean you have a pretty good line. The Attenuation is effectively
the length of your line, and low figures are good. The Margin is
affected by things such as noise, and high figures are good.
It gives different figures between send and receive because the signals
will be at different frequencies, and the line behaves differently as
the signal frequency changes.
I'm not sure how accurate these measurements are, but it looks
substantially better than my line.
--
David G. Bell -- SF Fan, Filker, and Punslinger.
"I am Number Two," said Penfold. "You are Number Six."