Yellowjacket 802.11a Wi-Fi receiver system uses a custom receiver, custom software and interfaces with an iPAQ 3800, 3900 or 5400 series giving Yellowjacket the distinction of being the only true RF analysis and direction finding tool accurate to within 1 dB. Berkeley’s newest 5 GHz calibrated receiver measures all 8 OFDM network channels operating on the IEEE 802.11a standard allowing the user to determine the AP (Access Point), SSID and RSSI signal levels of all access points on or off any 802.11a WISP or Hotspot. Yellowjacket includes an iPAQ PocketPC model 5455, 5 GHz antenna, Ni-MH fast charger, spare batteries, interface cable and Bird’s Eye Indoor Mapping Software Demo disc. Available options include true direction finding antenna and Bird’s Eye indoor/outdoor AP signal coverage mapping software.