AFAIK the signal quality is computed in one of two ways:

1) A directly reported value from the card if the card supports
"Quality" reporting
2) (signal strength in dBm) - (noise level in dBm) for cards that do
not support that.

Since I use Fedora + KDE so cannot comment on the screenshot (looks
like Ubuntu+Gnome), maybe the two readings are from two different
tools that are reporting using different methods.

HTH

APS

2008/7/24 H. S. Rai <[EMAIL PROTECTED]>:
>
> Please see screenshot.
>
>  http://gndec.ac.in/~hsrai/tmp/sswl.png
>
> which indicate two different strength of wireless signal.
>
> 1) Wireless network connection to 'G.Hostel' (45%)
> 2) Connection properties: wlan0 Signal strength 85%
>
> Out of these two which is correct or reliable.
>
> --
> H.S.Rai
>

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