iwconfig problem

[Eric Tanguy]

I have a prism based wifi pci card and all works fine and i had never
look at the datas given by iwconfig. But this afternoon i look carefully
what this command give me as information and i'm very surprised by the
values given : 
[tanguy at bureau ~]$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      IEEE 802.11b/g  ESSID:"maison"  Nickname:"bureau.maison"
          Mode:Managed  Frequency:2.467 GHz  Access Point:
00:0F:A3:1C:C8:BD
          Bit Rate:48 Mb/s   Tx-Power=31 dBm   Sensitivity=20/200
          Retry min limit:8   RTS thr:2347 B   Fragment thr:2346 B
          Link Quality:222/0  Signal level:-64 dBm  Noise level:-31 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
I can't understand how a system can achieve good link and a high bit
rate with the signal level lower than the noise level. I retry a lot of
time the same command with the same kind of results. What is the
problem ? The informations given are wrong ? There is something i don't
understand ?
Thanks

--
Eric Tanguy | Nantes, France 
<eric.tanguy at univ-nantes.fr>
Key : A4B8368F | Key Server : subkeys.pgp.net 
Fedora Core release 3 (Heidelberg) sur athlon kernel 2.6.11-1.14_FC3
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