DIY 2.4GHz Spectrum Analyser
There many wireless devices available on the market now that broadcast in the 2.4GHz spectrum including Bluetooth, 802.11a/b ethernet (WiFi), Zigbee, wireless USB, cordless phones, wireless mice and keyboards and the humble microwave oven. Depending where you live in the world your government has allocated a roughly 80MHz block for transmitting all manner of data starting at 2.4GHz. It’s getting a bit crowded in this band, especially if you live in a built up urban area. With this project you can monitor what’s going on and figure out what channel to change your WiFi network to in order for it to keep working when your neighbor rudely sets up their wireless network on the same channel as you.
   DIY 2.4GHz Spectrum Analyser
Full description at DIY 2.4GHz Spectrum Analyser website
www.wireless.org.au