EntityQ3630526· pop 11· linked from 49 articlesautomatic direction finderSign in to savemarine or aircraft radio-navigation instrumentConnectionsnon-directional beaconEntityradio direction findingEntityInternational Standard Book NumberEntitywattEntityMorse codeEntityhertzEntitynautical mileEntityOCLC, Inc.EntityFederal Aviation AdministrationEntityphaseEntitycompass roseEntitymedium waveEntityVHF omnidirectional rangeEntityradio navigationEntitylong waveEntityheading indicatorEntityhorizontal situation indicatorEntityCategoriesAircraft instrumentsAir navigationAmerican inventionsAvionicsItalian inventionsNavigational aidsRadio navigation