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Author : sherrill-nordquist | Published Date : 2016-07-14
FrequencyBandFrequencyRangeWavelengthPropagationModesELFExtremelyLowFrequencyLessthan3KHzl100kmGroundwaveVLFVeryLowFrequency330KHz10kml100kmEarthIonosphereguidedLFLowFrequency30300KH