That's not what you asked.It's often useful to know what other people recommend.
net/wiresharkI have a handy Wifi Analyzer app for my Android tablet. Does anything similar exist for FreeBSD?
A similar app like that from Android doesn't exist on FreeBSD, only on GNU/Linux: LinSSID. Maybe you can port it on FreeBSD.Actually, I have a feeling that no one who replied has ever used an app like the Android based Wifi Analyzer I mentioned in my first post...
https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer&hl=en_GB