debian:/home/mj# iwconfig ath0
ath0      IEEE 802.11g  ESSID:""
          Mode:Managed  Frequency:2.437 GHz  Access Point: Not-Associated
          Bit Rate:0 kb/s   Tx-Power:18 dBm   Sensitivity=0/3
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/94  Signal level=-94 dBm  Noise level=-94 dBm
          Rx invalid nwid:18658  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0