Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Low-frequency_radio_range> ?p ?o }
- Low-frequency_radio_range abstract "The low-frequency radio range (LFR), also known as the four-course radio range, LF/MF four-course radio range, A-N radio range, Adcock radio range, or commonly "the range", was the main navigation system used by aircraft for instrument flying in the 1930s and 1940s, until the advent of the VHF omnidirectional range (VOR), beginning in the late 1940s. It was used for en route navigation as well as instrument approaches and holds.Based on a network of radio towers which transmitted directional radio signals, the LFR defined specific airways in the sky. Pilots navigated the LFR by listening to a stream of automated "A" and "N" Morse codes. For example, they would turn the aircraft to the right when hearing an "N" stream ("dah-dit, dah-dit, ..."), to the left when hearing an "A" stream ("di-dah, di-dah, ..."), and fly straight ahead while hearing a steady tone.As the VOR system was phased in around the world, the LFR was gradually phased out, mostly disappearing by the 1970s. There are no remaining operational LFR facilities today. At its maximum deployment, there were nearly 400 LFR stations in the U.S. alone.".
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- Low-frequency_radio_range thumbnail A-N-signals.png?width=300.
- Low-frequency_radio_range wikiPageExternalLink RNGAPPYVP.jpg.
- Low-frequency_radio_range wikiPageExternalLink adcock-range.html.
- Low-frequency_radio_range wikiPageExternalLink watch?v=p-VqtNY8vpw.
- Low-frequency_radio_range wikiPageID "23697364".
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- Low-frequency_radio_range wikiPageOutDegree "100".
- Low-frequency_radio_range wikiPageRevisionID "683808865".
- Low-frequency_radio_range wikiPageWikiLink Above_Ground_Level.
- Low-frequency_radio_range wikiPageWikiLink Adcock_antenna.
- Low-frequency_radio_range wikiPageWikiLink Air_traffic_control.
- Low-frequency_radio_range wikiPageWikiLink Aircraft_attitude.
- Low-frequency_radio_range wikiPageWikiLink Aircraft_heading.
- Low-frequency_radio_range wikiPageWikiLink Airmail.
- Low-frequency_radio_range wikiPageWikiLink Airway_(aviation).
- Low-frequency_radio_range wikiPageWikiLink Airway_beacon.
- Low-frequency_radio_range wikiPageWikiLink Amplitude_Modulation.
- Low-frequency_radio_range wikiPageWikiLink Amplitude_modulation.
- Low-frequency_radio_range wikiPageWikiLink Antenna_(radio).
- Low-frequency_radio_range wikiPageWikiLink Army_Signal_Corps.
- Low-frequency_radio_range wikiPageWikiLink Attitude_control.
- Low-frequency_radio_range wikiPageWikiLink Attitude_indicator.
- Low-frequency_radio_range wikiPageWikiLink Azimuth.
- Low-frequency_radio_range wikiPageWikiLink Baker,_California.
- Low-frequency_radio_range wikiPageWikiLink Category:Radio_navigation.
- Low-frequency_radio_range wikiPageWikiLink Compass.
- Low-frequency_radio_range wikiPageWikiLink Cone_of_Silence.
- Low-frequency_radio_range wikiPageWikiLink Course_(navigation).
- Low-frequency_radio_range wikiPageWikiLink Electromagnetic_interference.
- Low-frequency_radio_range wikiPageWikiLink Electromagnetic_radiation.
- Low-frequency_radio_range wikiPageWikiLink Federal_Aviation_Administration.
- Low-frequency_radio_range wikiPageWikiLink Federal_government_of_the_United_States.
- Low-frequency_radio_range wikiPageWikiLink File:LFR-hold.jpg.
- Low-frequency_radio_range wikiPageWikiLink File:LFR-loop.jpg.
- Low-frequency_radio_range wikiPageWikiLink File:LFR-photo.jpg.
- Low-frequency_radio_range wikiPageWikiLink File:LFR-reed.jpg.
- Low-frequency_radio_range wikiPageWikiLink File:Lfr-a+n.gif.
- Low-frequency_radio_range wikiPageWikiLink File:Lfr-a-.gif.
- Low-frequency_radio_range wikiPageWikiLink File:Lfr-a.gif.
- Low-frequency_radio_range wikiPageWikiLink File:Lfr-n.gif.
- Low-frequency_radio_range wikiPageWikiLink Final_approach_(aeronautics).
- Low-frequency_radio_range wikiPageWikiLink Final_approach_(aviation).
- Low-frequency_radio_range wikiPageWikiLink Global_Positioning_System.
- Low-frequency_radio_range wikiPageWikiLink Ground_speed.
- Low-frequency_radio_range wikiPageWikiLink Gyroscope.
- Low-frequency_radio_range wikiPageWikiLink Gyroscopic.
- Low-frequency_radio_range wikiPageWikiLink Heading_indicator.
- Low-frequency_radio_range wikiPageWikiLink Height_above_ground_level.
- Low-frequency_radio_range wikiPageWikiLink Helendale,_California.
- Low-frequency_radio_range wikiPageWikiLink Hertz.
- Low-frequency_radio_range wikiPageWikiLink Holding_(aeronautics).
- Low-frequency_radio_range wikiPageWikiLink Holding_(aviation).
- Low-frequency_radio_range wikiPageWikiLink Horizontal_plane.
- Low-frequency_radio_range wikiPageWikiLink ITU_Radio_Bands.
- Low-frequency_radio_range wikiPageWikiLink Instrument_approach.