Designed to function in both indoor and outdoor environments, the RF Explorer includes a WSUB1G baseline unit and a RFEMWSUB3G Expansion Module. With several different modes to track different frequencies including Peak Max and Hold, Normal, Overwrite, and Averaging modes, the RF Explorer functions like a standard spectrum analyzer, only much smaller. It also comes with two SMA connectors and antennas, a Nagoya NA-773 wideband telescopic antenna for sub-GHz frequencies and a whip helical for 3.4 GHz band.