http://www.macupdate.com/download/35034/wifispy_1.0.1.dmg
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WiFiSpy is a small app that simply displays your current AirPort link speed (in megabits per second) in the menu bar. This is useful in determining where you get the best WiFi reception at your location, or where the most radio interference is.
What's New
Version 1.0.1: Release notes were unavailable when this listing was updated.
Requirements
Mac OS X 10.5 or later
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