This is a way to trouble shoot and analyse Wi-Fi networks, the included software helps the user to record, playback the data and will even draw you a fancy graph.
Features – Increased frequency and amplitude resolution, Helps you identify Wi-Fi interference (802.11 b/g/n, microwave ovens, cordless phones, Bluetooth, etc.), Frequency range is 2.400 – 2.4835 GHz, Record/playback data traces, Frequency/amplitude marker, Frequency / Wi-Fi / Zigbee channel labels, Save or copy image to clipboard, Spectral, Topographic, and Planar Views and Download Beta version of software for Mac. Priced at $299.99.
Source [Think Geek]
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