AirPort Radar (as of v1.2) does not detect 802.11n networks whereas Air Traffic Control does.

i found this handy on PowerBook G4, but stopped using it on MacBook Pro because it showed obviously wrong values (highest signal shown as lower value than remote signals; iStumbler confirms the error is in Airport Radar)

Love this widget. Simple, handy, and very quick scanning.
It's always running on my Mac, as I'm almost always moving around, looking for wireless access, and the signal in my dorm room is incredibly weak. This lets me zero in on the right spot.

Heck, on its own, this is practically a wardriving tool. It displays whether or not a network is password-protected without having to connect, so you can easily find an open one.

Nice widget.
Free and lightwieght...the kind of software that's useful to have on your mac

it`s free and its a widget.

"If this is suppose to be free software, then why does the link go to a $ite $elling a hardware wirele$$ booster?"

if you wait a few seconds the download starts

If this is suppose to be free software, then why does the link go to a $ite $elling a hardware wirele$$ booster?
This is not a software widget!