This work describes the design and implementation of an 802.11b wireless network detector. The system puts the wireless network card into the RF monitor mode, examines traffic, extracts and processes important network identification information. The system is primarily designed to run on handheld devices similar to the Ipaq Pocket PC by Compaq and Zaurus by Sharp running the Linux operating system. The main objectives for this system were to be able
to detect wireless networks, extract most useful information about the networks, and to be user-friendly.