Measurement capability includes tune mode, return loss, SWR, cable loss, and distance-to-fault (DTF) analysis. Tune mode is a fast sweep mode that quickly tunes the waveguide by adjusting the flange connectors quickly at both ends of the wave guide. Patented RF interference rejection enables accurate measurements in the presence of high RF activity. Data Analysis software enables assessment of system trends, problems, and performance in addition to professional report generation. An optional power meter is available to make power measurements quickly and easily.