EntityQ1367488· pop 23· linked from 1,120 articlesradio direction findingSign in to savemeasurement of the direction from which a received signal was transmittedConnectionsWorld War IIConcepthertzEntityantennaEntityDoppler effectEntitymicrowaveEntityvacuum tubeEntityultra high frequencyEntityparabolic antennaEntitysignals intelligenceEntitydipole antennaEntitymedium waveEntityVHF omnidirectional rangeEntityemergency position-indicating radiobeaconEntitytraveling-wave tubeEntitygeopositioningEntitylong waveEntityskywaveEntitybeamformingEntityHigh-frequency direction findingEntityMI8EntityCategoriesAircraft instrumentsAir navigationAmerican inventionsAutomatic identification and data captureAvionicsGeopositioningItalian inventionsNavigational aidsRadio direction findingRadio-frequency identificationRadio navigation