rt2500:~# iwconfig eth1 | grep dBm
          Bit Rate:0 kb/s   Tx-Power:15 dBm   Sensitivity=0/3
          Link Quality=0/94  Signal level=-90 dBm  Noise level=-90 dBm
rt2500:~# iwconfig eth1 | grep dBm
          Bit Rate:0 kb/s   Tx-Power:15 dBm   Sensitivity=0/3
          Link Quality=0/94  Signal level=-86 dBm  Noise level=-86 dBm
rt2500:~# iwconfig eth1 | grep dBm
          Bit Rate:0 kb/s   Tx-Power:15 dBm   Sensitivity=0/3
          Link Quality=0/94  Signal level=-90 dBm  Noise level=-90 dBm
rt2500:~# iwconfig eth1 | grep dBm
          Bit Rate:0 kb/s   Tx-Power:15 dBm   Sensitivity=0/3
          Link Quality=0/94  Signal level=-96 dBm  Noise level=-96 dBm