Atheros WIFI card monitor mode
 

Monitor mode seems to work for me but the problem I have is that it always creates another interface with a higher number.

wlanconfig ath create wlandev wifi0 wlanmode monitor
ath1

It says ath1 but if I do an iwconfig i get this....

ath12 IEEE 802.11g ESSID:"" Nickname:""
Mode:Monitor Channel:0 Access Point: Not-Associated
Bit Rate:0 kb/s Tx-Power:17 dBm Sensitivity=1/1
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/70 Signal level=-96 dBm Noise level=-96 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

As you can see I am up to ath12!! I would like it to stay at ath1. Where am I going wrong??