ra0       RT61 Wireless  ESSID:""  Nickname:"localhost.localdomain"
          Mode:Managed  Frequency:2.412 GHz  Bit Rate=54 Mb/s
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Link Quality=0/100  Signal level:-121 dBm  Noise level:-111 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0