An interactive graphical user interface (GUI) for displaying frequency, amplitude and geolocation information provided by a local intelligence system is provided comprising: a plot of radio frequency (RF) versus amplitude, and a map indicating location of RF signals. The intelligence system has a front end to generate digital data based on received RF signals, a post processing stage to process the digital data, and a geolocation module to prevent the post-processing stage from processing a first portion of the digital data that corresponds to RF signals originating from a geographic location other than a predetermined geographic location. The GUI is updated continuously in near real time. Methods of operating the GUI are also provided.