- low-frequency radio beacon
- низкочастотный [длинноволновый] радиомаяк
Englsh-Russian aviation and space dictionary. - M.: Military publishing house USSR Ministry of Defence. edited by M. Murashkevich. 1974.
Englsh-Russian aviation and space dictionary. - M.: Military publishing house USSR Ministry of Defence. edited by M. Murashkevich. 1974.
Low frequency — or LF refers to Radio Frequencies (RF) in the range of 30 kHz ndash;300 kHz. In Europe, and parts of Northern Africa and of Asia, part of the LF spectrum is used for AM broadcast service. In the western hemisphere, its main use is for aircraft… … Wikipedia
Radio navigation — or radionavigation is the application of radio frequencies to determining a position on the Earth. Like radiolocation, it is a type of radiodetermination.RDF / ADF / NDBThe first system of radio navigation was the Radio Direction Finder, or RDF.… … Wikipedia
Non-directional beacon — Radio Tower of NKR Leimen Ochsenbach, Germany This symbol denotes an NDB on an aeronaut … Wikipedia
Radio direction finder — Civil Air Patrol members practice using a handheld radio direction finder to locate an emergency locator transmitter … Wikipedia
Radio propagation beacon — A radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on HF, VHF, UHF, and microwave frequencies.… … Wikipedia
radio-marker beacon — The beacons that serve to identify a particular location in space along an airway or approach to an instrument runway. This is done by means of a 75 MHz transmitter, which transmits a directional signal to be received by aircraft flying overhead … Aviation dictionary
Electric beacon — Electric beacons are a kind of beacon used with direction finding equipment to find ones relative bearing to a known location (the beacon).The term electric beacon includes radio, infrared and sonar beacons. Radio beacons A radio beacon is a… … Wikipedia
Letter beacon — Signal of letter beacon D on 5137.5 kHz Letter beacons are radio transmissions of uncertain origin, which consist of only a single repeating Morse Code letter. They are also often referred to as: SLB, or Single Letter Beacons SLHFB, or… … Wikipedia
List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… … Wikipedia
Marker beacon — A marker beacon is a particular type of VHF radio beacon used in aviation, usually in conjunction with an instrument landing system (ILS), to give pilots a means to determine position along an established route to a destination such as a runway.… … Wikipedia
Amateur radio repeater — An amateur radio repeater is an electronic device that receives a weak or low level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. Many repeaters are… … Wikipedia