Statements (21)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:navigation
|
gptkbp:alsoKnownAs |
gptkb:Four_Course_Radio_Range
|
gptkbp:category |
air traffic control
aviation navigation radio navigation |
gptkbp:enables |
course guidance
|
https://www.w3.org/2000/01/rdf-schema#label |
Radio Range
|
gptkbp:introducedIn |
1920s
|
gptkbp:operatesIn |
low frequency band
|
gptkbp:phasedOutIn |
1970s
|
gptkbp:provides |
audio signals
|
gptkbp:replacedBy |
gptkb:VOR
|
gptkbp:requires |
gptkb:radio_station
|
gptkbp:type |
gptkb:Morse_code
|
gptkbp:usedBy |
air traffic controllers
pilots |
gptkbp:usedFor |
aircraft navigation
|
gptkbp:usedIn |
gptkb:Europe
gptkb:United_States |
gptkbp:bfsParent |
gptkb:Saint_John_Parish
|
gptkbp:bfsLayer |
6
|