WiFi Radar on Toshiba Tecra M5 w/ Ubuntu 7.04

I've a Toshiba Tecra M5 running Ubuntu 7.04 and the wireless radar works beautifully, finding all the WiFi network within range. A simple network configuration through a GUI. Simply fix the WiFi properties through "System | Administration | Network" menu item, choosing the right wireless network from a drop down that contains icon for all networks within range and their respective signal strengths.