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As the 2.4 GHz ISM Band becomes more popular (and more congested) interference from non-Wifi devices can seriously degrade Wi-Fi performance.

Wi-Spy is the world’s smallest 2.4 GHz spectrum analyzer, and has been designed specifically for troubleshooting and analyzing Wi-Fi networks. It shows the signal strength for all Wi-Fi networks as well as Bluetooth, 2.4 GHz cordless phones, microwaves, Zigbee, and all other 2.4 GHz transmitters. At a glance you can see what Wi-Fi channels are quiet and what channels you should avoid if possible. This makes it easy to pick a quiet channel for your access point instead of picking your favorite number between 1 and 11.

The original Wi-Spy software was good, but the new and improved Chanalyzer 2.0 software features a completely redesigned interface that presents a more clear and concise view of your wireless landscape. Combined with the Wi-Spy spectrum analyzer, Chanalyzer will help you visualize, troubleshoot, and optimize your wireless network.

* Helps you identify wi-fi interference
* Frequency range is 2.400 – 2.485 GHz
* Record/playback data traces
* Frequency/amplitude marker
* Spectral, Topographic, and Planar Views
* View the user manual
* New Wi-Spy software available here (Windows and Mac OS X)
* Linux software