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Posted by:poto
Subject:Power to dBm : how ?
Date:16:42:33 06/03/2009

> > Hey,
> >
> > We're trying Kismet from Backtrack3 livecd and a Cisco PCCard a/b/g with Atheros chipset inside.
> >
> > Using Kismet, we can see all the SSID flying around, and when we need more infos about a particular BSSID (pressing key i), we noticed we couldn't get the signal's dBm value, but only a "Power" value.
> > On the other hand, the noise looks like to be displayed in dBm value.
> >
> > What's the formula to get dBm from a Power value ?
> >
> > Thanks for any help,
> >
> > Cheers
>
> There is none. If it was known, it would be in dBm already.
>
> Sorry,
>
> -m

Ok, but what I don't understand is using the same model of Cisco a/b/g PCCard on a windows box using a software called netstumbler for an example, we can get the dBm value.
How do you explain that strange fact ? Maybe it is a lack in the madwifi driver in Linux ?


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