Airview9-EXT Spectrum Analyzer w/ext. Antenna

http://www.ubnt.com/airview

Ubiquiti's AirView is a revolutionary product which consists of a tiny USB module, that when paired with a common laptop or PC, transforms into a powerful Spectrum Analyzer. The AirView Spectrum Analyzer is useful in studying all RF energy contributors in the 2.4GHz band, but has particularly useful tools that make it ideal for optimizing 2.4GHz WiFi Networks. AirView is available in four different models: AirView2 (2.4GHz), AirView2-EXT (2.4GHz, external antenna), AirView9 (900MHz), AirView9-EXT (900MHz, external antenna). System Requirements Frequency Range (Model Dependent) Sweep Time Weight Windows XP, Vista, Apple OSX, Linux USB 1.1  0.1 kg