Spectrum Mapping Large sets of spectrum data can be automatically aggregated, processed and overlaid onto a map to provide a clear and easily inspectable visual representation of spectrum usage. This is particularly useful for regulators, military users and event planners wishing to consider RF congestion risks. The spectrum map is also used by regulators to observe spectrum usage and coverage over time allowing more informed decisions on licensing. The software is able to display and analyze spectral data in a number of different ways, including synchronized map-based displays, spectrum plots and spectrograms, occupancy plots, and time evolutions. Data can be selected by any combination of RFeye Node/network, location, time window or frequency range, and resolution can be displayed from national level to individual street location. Data can be displayed and analyzed from both mobile and fixed monitoring operations. Many different reports can be produced and tailored to specific requirements. The data handling and processing efficiency of the mapping tool allows the operator to quickly interrogate the entire database to understand and resolve potentially complex real-world spectrum issues. A series of graphical reporting tools are linked and updated simultaneously with the geospatial representation of measured spectrum on the map overlay. The available visual representations on the map overlays include mean signal, peak signal and band utilization. Reporting options include spectrogram charts for temporal analysis, spectrum charts for summarizing signal power by frequency, and spectrum use reports to step though the selected dataset at user-defined resolutions to understand total spectrum utilization across an area.