Radar (radio and resonance detector) sends electromagnetic signals in the range of 60 MHz to 300 MHz in the ground and waits for echo or reflection of the signal to detect hidden anomalies as follows: –  Buried pipelines, channels and cable –  Underground walls, basements, and reinforced concrete –  Buried wells Exhibitions, trenches and bunkers –  groundwater level, rivers and groundwater –  secret tunnels, bunkers and shelters –  hidden cavities, graves and cemeteries –  septic tanks, distribution boxes and sewage pipes –  buried treasures, statues and hideouts