802.11b Network Discovery Tools is a gtk tool to scan for 802.11b networks using wavelan/aironet hardware and Linux wireless extensions. It includes the ability to log coordinates of found networks from a NMEA compatible GPS device, and can be linked to a serial port.
You can download it from the following link: https://packetstormsecurity.com/files/download/25317/gtkskan-0.2.tgz
Source: https://packetstormsecurity.com/files/25317/gtkskan-0.2.tgz.html