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62 relations: Adcock antenna, Air traffic control, Airmail, Airway (aviation), Airway beacon, American Heritage of Invention & Technology, Amplitude modulation, Antenna (radio), Antenna blind cone, Attitude indicator, Baker, California, Compass, Course (navigation), Electromagnetic interference, Electromagnetic radiation, Federal Aviation Administration, Federal government of the United States, Final approach (aeronautics), Flight dynamics (fixed-wing aircraft), Flight International, Global Positioning System, Ground speed, Gyroscope, Heading indicator, Height above ground level, Helendale, California, Hertz, Holding (aeronautics), Horizontal plane, Instrument approach, Instrument flight rules, Instrument meteorological conditions, Jimmy Doolittle, Joliet, Illinois, Lighthouse, Loop antenna, Low frequency, Medium frequency, Missed approach, Morse code, National Institute of Standards and Technology, Noise (radio), Non-directional beacon, Popular Mechanics, Proceedings of the National Academy of Sciences of the United States of America, Radiation pattern, Radio direction finder, Radio navigation, Radio spectrum, SCR-277, ..., Signal Corps (United States Army), The New York Times, Thunderstorm, Turn and slip indicator, U.S. National Geodetic Survey, United States Air Force, United States Department of Commerce, Very high frequency, VHF omnidirectional range, Watt, Waypoint, World War I. Expand index (12 more) »
Adcock antenna
The Adcock antenna is an antenna array consisting of four equidistant vertical elements which can be used to transmit or receive directional radio waves.
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Air traffic control
Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through controlled airspace, and can provide advisory services to aircraft in non-controlled airspace.
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Airmail
Airmail (or air mail) is a mail transport service branded and sold on the basis of at least one leg of its journey being by air.
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Airway (aviation)
An airway or air route is a defined corridor that connects one specified location to another at a specified altitude, along which an aircraft that meets the requirements of the airway may be flown.
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Airway beacon
An airway beacon was a rotating light assembly mounted atop a tower.
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American Heritage of Invention & Technology
American Heritage of Invention & Technology was a quarterly magazine dedicated to the history of technology.
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Amplitude modulation
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave.
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Antenna (radio)
In radio, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.
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Antenna blind cone
In telecommunications, antenna blind cone (sometimes called a cone of silence or antenna blind spot) is the volume of space, usually approximately conical with its vertex at the antenna, that cannot be scanned by an antenna because of limitations of the antenna radiation pattern and mount.
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Attitude indicator
An attitude indicator (AI), also known as gyro horizon or artificial horizon or attitude director indicator (ADI, when it has a Flight Director), is an instrument used in an aircraft to inform the pilot of the orientation of the aircraft relative to Earth's horizon.
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Baker, California
Baker is a census-designated place located in San Bernardino County, California, US.
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Compass
A compass is an instrument used for navigation and orientation that shows direction relative to the geographic cardinal directions (or points).
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Course (navigation)
In navigation, a vessel's or aircraft's course is the cardinal direction along which the vessel or aircraft is to be steered.
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Electromagnetic interference
Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction.
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Electromagnetic radiation
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
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Federal Aviation Administration
The Federal Aviation Administration (FAA) of the United States is a national authority with powers to regulate all aspects of civil aviation.
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Federal government of the United States
The federal government of the United States (U.S. federal government) is the national government of the United States, a constitutional republic in North America, composed of 50 states, one district, Washington, D.C. (the nation's capital), and several territories.
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Final approach (aeronautics)
A final approach (also called final leg and final approach leg) is the last leg in an aircraft's approach to landing, when the aircraft is lined up with the runway and descending for landing.
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Flight dynamics (fixed-wing aircraft)
Flight dynamics is the science of air vehicle orientation and control in three dimensions.
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Flight International
Flight International (or simply Flight) is a weekly magazine focused on aerospace, published in the United Kingdom.
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Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force.
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Ground speed
Ground speed is the horizontal speed of an aircraft relative to the ground.
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Gyroscope
A gyroscope (from Ancient Greek γῦρος gûros, "circle" and σκοπέω skopéō, "to look") is a device used for measuring or maintaining orientation and angular velocity.
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Heading indicator
The heading indicator (also called an HI) is a flight instrument used in an aircraft to inform the pilot of the aircraft's heading.
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Height above ground level
In aviation, atmospheric sciences and broadcasting, a height above ground level (AGL) is a height measured with respect to the underlying ground surface.
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Helendale, California
Helendale or Silver Lakes is an unincorporated community and census-designated place located in the Victor Valley of the Mojave Desert, within San Bernardino County, California.
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Hertz
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
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Holding (aeronautics)
In aviation, holding (or flying a hold) is a maneuver designed to delay an aircraft already in flight while keeping it within a specified airspace.
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Horizontal plane
In geometry, physics, astronomy, geography, and related sciences, a plane is said to be horizontal at a given point if it is perpendicular to the gradient of the gravity field at that point – in other words, if apparent gravity makes a plumb bob hang perpendicular to the plane at that point.
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Instrument approach
In aviation, an instrument approach, or instrument approach procedure (IAP), is a series of predetermined maneuvers for the orderly transfer of an aircraft under instrument flight conditions from the beginning of the initial approach to a landing or to a point from which a landing may be made visually.
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Instrument flight rules
Instrument flight rules (IFR) is one of two sets of regulations governing all aspects of civil aviation aircraft operations; the other is visual flight rules (VFR).
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Instrument meteorological conditions
Instrument meteorological conditions (IMC) is an aviation flight category that describes weather conditions that require pilots to fly primarily by reference to instruments, and therefore under instrument flight rules (IFR), rather than by outside visual references under visual flight rules (VFR).
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Jimmy Doolittle
James Harold Doolittle (December 14, 1896 – September 27, 1993) was an American aviation pioneer.
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Joliet, Illinois
Joliet is a city in Will and Kendall counties in the U.S. state of Illinois, southwest of Chicago.
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Lighthouse
A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses and to serve as a navigational aid for maritime pilots at sea or on inland waterways.
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Loop antenna
A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other electrical conductor usually fed by a balanced source or feeding a balanced load.
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Low frequency
Low frequency (low freq) or LF is the ITU designation for radio frequencies (RF) in the range of 30 kilohertz (kHz)–300 kHz.
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Medium frequency
Medium frequency (MF) is the ITU designation for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz).
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Missed approach
Missed approach is a procedure followed by a pilot when an instrument approach cannot be completed to a full-stop landing.
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Morse code
Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.
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National Institute of Standards and Technology
The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.
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Noise (radio)
In radio reception, noise is the superposition of white noise and other disturbing influences on the signal, caused either by thermal noise and other electronic noise from receiver input circuits or by interference from radiated electromagnetic noise picked up by the receiver's antenna.
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Non-directional beacon
A non-directional (radio) beacon (NDB) is a radio transmitter at a known location, used as an aviation or marine navigational aid.
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Popular Mechanics
Popular Mechanics is a classic magazine of popular science and technology.
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Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America (PNAS) is the official scientific journal of the National Academy of Sciences, published since 1915.
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Radiation pattern
In the field of antenna design the term radiation pattern (or antenna pattern or far-field pattern) refers to the directional (angular) dependence of the strength of the radio waves from the antenna or other source.
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Radio direction finder
A radio direction finder (RDF) is a device for finding the direction, or ''bearing'', to a radio source.
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Radio navigation
Radio navigation or radionavigation is the application of radio frequencies to determine a position of an object on the Earth.
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Radio spectrum
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3 000 GHz (3 THz).
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SCR-277
The SCR-277 was a mobile, trailer mounted radio range set for radio guidance of aircraft.
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Signal Corps (United States Army)
The United States Army Signal Corps (USASC) develops, tests, provides, and manages communications and information systems support for the command and control of combined arms forces.
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The New York Times
The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.
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Thunderstorm
A thunderstorm, also known as an electrical storm, lightning storm, or thundershower, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder.
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Turn and slip indicator
In aviation, the turn and slip indicator (T/S, a.k.a. turn and bank indicator) and the turn coordinator (TC) variant are essentially two aircraft flight instruments in one device.
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U.S. National Geodetic Survey
The National Geodetic Survey (NGS), formerly the United States Survey of the Coast (1807–1836), United States Coast Survey (1836–1878), and United States Coast and Geodetic Survey (USC&GS) (1878–1970), is a United States federal agency that defines and manages a national coordinate system, providing the foundation for transportation and communication; mapping and charting; and a large number of applications of science and engineering.
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United States Air Force
The United States Air Force (USAF) is the aerial and space warfare service branch of the United States Armed Forces.
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United States Department of Commerce
The United States Department of Commerce is the Cabinet department of the United States government concerned with promoting economic growth.
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Very high frequency
Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten to one meter.
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VHF omnidirectional range
Very High Frequency (VHF) Omni-Directional Range (VOR) is a type of short-range radio navigation system for aircraft, enabling aircraft with a receiving unit to determine their position and stay on course by receiving radio signals transmitted by a network of fixed ground radio beacons.
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Watt
The watt (symbol: W) is a unit of power.
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Waypoint
A waypoint is an intermediate point or place on a route or line of travel, a stopping point or point at which course is changed, first use of the term tracing to 1880.
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World War I
World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.
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Redirects here:
Cone of silence (navigation), Flying the beam, Four Course Radio Range, Four course range, Four-course radio range, Four-course radio range station, L/MF four-course radio range, LF/MF Four-Course Radio Range, Lfrr, Low Frequency Radio Range, Low Frequency radio range, Low frequency radio range, Radio range.
References
[1] https://en.wikipedia.org/wiki/Low-frequency_radio_range
