Category:   Software > Monitoring/Scanning

CommView for WiFi is a network monitor and packet analyzer for 802.11 a/b/g networks. Real time statistics, on-the-fly WEP and WPA decryption, over 70 supported protocols. Windows 2000/XP/2003/Vista.
Category:   Software > Monitoring/Scanning

KisMAC is an opensource and free stumbler/scanner application for Mac OS X. It has an advantage over MacStumbler/iStumbler/NetStumbler in that it uses monitor mode and passive scanning.
KisMAC supports several third party PCMCIA cards - Orinoco, PrismII, Cisco Aironet, Atheros and PrismGT. USB Prism2 is supported as well, and USB Ralink support is in development. All of the internal AirPort hardware is supported as well.
Please note: This program is not intended for novices, but for professional users. Take this as a warning
Category:   Software > Monitoring/Scanning

Locate and connect to WLAN or Wi-Fi networks automatically for Windows 98/Me/2000/XP
Category:   Software > Monitoring/Scanning

Grasshopper[tm] is a handheld, wireless receiver designed specifically for sweeping and optimizing Local Area Networks. The instrument measures coverage of direct sequence CDMA networks which operate on the IEEE 802.11b standard allowing the user to measure and determine the AP (AccessPoint), PER (Packet Error Rate) and RSSI signal levels aiding in locating the hub and access points throughout a building. Grasshopper detects and differentiates from narrow-band multipath interferences such as microwave ovens and frequency hopping systems and features a built-in display, keypad and removable battery pack for true portability.
Category:   Software > Monitoring/Scanning