A simple python script for viewing local wifi channel usage vs. signal strength. Draws an almost pretty graph.
./wifi-channels.py <interface>
Needs root access really, otherwise you can only see the ssid you're connected to...
Updates every 5s until you close the graph window.
The x-axis is the channel. The y-axis indicates signal strength (it's 100 + the dBm to be precise).
The almost pretty graph looks like this.
