tx power

[Dimitris Theoharis]

Hi

Is there a reaso why i do  not see the tx power level in iwconfig?
its a prism2.5 card. A Senao to be more specific. Thanks ;)

 iwconfig wlan0
wlan0     IEEE 802.11b  ESSID:"test"
          Mode:Managed  Frequency:2.412 GHz  Access Point: None
          Bit Rate:2 Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/70  Signal level=-73 dBm  Noise level=-73 dBm
          Rx invalid nwid:0  Rx invalid crypt:432  Rx invalid frag:0
          Tx excessive retries:4  Invalid misc:41   Missed beacon:0