Jennifer Huber pulls up a chair at the Pushers workbench this week. Her experience and knowledge of in wireless networking is quite awesome.
In short, Cisco bought a company who makes a chip that analyzes radio spectrum in 70Khz chunks. They stuck the chip in their Aironet 3500 WAPs. The analysis chip works with other WAPs that have the same chip to triangulate noise sources, fingerprint them, and adjust power output and channel automatically to make for the best wireless client experience.
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