how to detect available networks

Hi, I have FreeBSD 7.1 on my laptop. At home no problem with connecting to my own network through rc.conf and wpa_supplicant.conf, but I cannot detect other available/open networks when I'm away from home.

How do I detect available networks?

Thanks!

/Alan
 
If that doesn't show anything after a few seconds, press ctrl+c and enter # ifconfig ath0 list scan to see the results.
 
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