I discovered this highly useful piece of freeware in my search for wifi signal detection tools. It has been a real life saver, and is very helpful program whether you are war driving for fun, looking for the best spot to “borrow” internet from the neighbors, aiming mid-long range antennas, or simply trying to optimize your home or office Wifi signal.
From the Wikipedia entry:
NetStumbler (also known as Network Stumbler) is a tool for Windows that facilitates detection of Wireless LANs using the 802.11b, 802.11a and 802.11g WLAN standards. It runs on Microsoft Windows operating systems from Windows 2000 to Windows XP. A trimmed-down version called MiniStumbler is available for the handheld Windows CE operating system.
The software has an adjustable refresh rate, and when set to the fastest the software is far superior to the stock Windows wireless network detection. You can make fine adjustments to your layout and watch on screen to see the differences they make almost instantly. It has a plethora of options to fine tune your connection.
It is worth noting, though, that the software will not actually optimize or even connect to any networks for you. It is used rather to help find that “sweet spot” for your antenna, then you are to use either Windows or your adapter’s software to connect to the network.
You can download it here.