<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Hi Dan, <br>
</span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Thanks for your reply. <br>
</span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">But can you please give me a pointer as to
how to use WE directly to get the signal strength?<br>
</span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Regards<br>
Pradeep<br>
</span></font></p>
<br><br><div><span class="gmail_quote">On 8/25/06, <b class="gmail_sendername">Dan Williams</b> <<a href="mailto:dcbw@redhat.com">dcbw@redhat.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Fri, 2006-08-25 at 19:05 +0530, Pradeep Sengar wrote:<br>> Hi,<br>><br>><br>><br>> I am having a wi-fi application to show the signal strength . From<br>> wpa_supplicant I get the RSSI value in dBm. Now, the dBm range is
<br>> different for different AP's. How do I convert the signal strength<br>> value in a range?<br><br>It's different for every card. Wireless Extensions specifies signal<br>strength in either RSSI or dBm, and the driver must specify a noise
<br>floor in the same units. If you're given dBm by the driver (or by<br>wpa_supplicant) you can use the noise floor as your lower value for the<br>range, but remember that the scale is not necessarily linear.<br><br>Furthermore, drivers these days are _very_ bad at reporting signal
<br>strength in any standardized fashion, and drivers also have<br>discrepancies between a scanned AP's strength and the strength when<br>you're associated to that AP.<br><br>You may have to use WE directly rather than wpa_supplicant to get the
<br>information you need.<br><br>Dan<br><br>><br>> Regards<br>><br>> Pradeep<br>><br>> _______________________________________________<br>> HostAP mailing list<br>> <a href="mailto:HostAP@shmoo.com">
HostAP@shmoo.com</a><br>> <a href="http://lists.shmoo.com/mailman/listinfo/hostap">http://lists.shmoo.com/mailman/listinfo/hostap</a><br><br></blockquote></div><br><br clear="all"><br>-- <br>Regards<br>Pradeep Singh<br>
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