Direction finding (DF), radio direction finding (RDF), or radiogoniometry is the use of radio waves to determine the direction to a radio source. The source...

intermediate direction of every pair of neighboring cardinal and intercardinal directions is called a secondary intercardinal direction. These eight shortest...

direction finding (ARDF, also known as radio orienteering, radio fox hunting and radiosport) is an amateur racing sport that combines radio direction...

High-frequency direction finding, usually known by its abbreviation HF/DF or nickname huff-duff, is a type of radio direction finder (RDF) introduced in...

cover for the work, meaning Range and Direction Finding but suggesting the already well-known Radio Direction Finding. Late in 1935, responding to Lindemann's...

Round, working for Marconi, began carrying out experiments with direction-finding radio equipment for the army in France in 1915. By May 1915, the Admiralty...

Doppler radio direction finding, also known as Doppler DF, is a radio direction-finding method that generates accurate bearing information with minimal...

high frequency (HF) radio direction finding systems to be installed on Royal Navy convoy escort ships. Such direction finding systems were referred to...

used until the end of the war Aware of the danger presented by radio direction finding (RDF), the Kriegsmarine developed various systems to speed up broadcast...

Sundial#Using a sundial as a compass. Astronomy provides a method for finding direction at night. All the stars appear to lie on the imaginary celestial sphere...

signal vanishes) which gives a tiny antenna for exceedingly accurate direction-finding, better than most moderately large antennas, and as good as many huge...

Sometimes both functions were operated at the same site, with the direction finding (D/F) hut being a few hundred metres from the main interception building...

Aliasing has changed its apparent frequency of rotation. A reversal of direction can be described as a negative frequency. Temporal aliasing frequencies...

azimuthal direction a radio signal was coming from in order to find the location of the radio transmitter; a process called radio direction finding. Prior...

pp. 99–177. Kayton, Fried 1977, p.116 "An Introduction to Radio Direction Finding". Cognitive Ecology. October 22, 2021. Retrieved April 4, 2024. Murphy...

important developments was ship-borne direction-finding radio equipment, known as HF/DF (high-frequency direction-finding, or Huff-Duff), which started to...

classification) is an algorithm used for frequency estimation and radio direction finding. In many practical signal processing problems, the objective is to...

or a wullenweber, is a large circular antenna array used for radio direction finding. They are used by military and government agencies to triangulate...

locating of a radio transmitter by bearings taken from two or more direction finding stations, the site of the transmitter being at the point of intersection...

experiments with direction finding radio equipment for the army in France in 1915. Hall instructed him to build a direction finding system for the navy...

a kind of beacon, a device that marks a fixed location and allows direction-finding equipment to find relative bearing. But instead of employing visible...

As the search and rescue team approach the search areas, they use Direction Finding (DF) equipment to locate the beacon using the 121.5 MHz homing signal...

championships. Radiosport also can refer to the sport of amateur radio direction finding (ARDF). Although they represent a broad range of amateur radio interests...

antenna array, built at eight locations during the Cold War for HF/DF direction finding of high priority targets. The worldwide network, known collectively...

systems use direction finding or triangulation of transmitter signals radiated by the mobile. This is sometimes called radio direction finding or RDF. The...

December 1973) was a Scottish radio engineer and pioneer of radio direction finding and radar technology. Watt began his career in radio physics with...

Bondarenko and V.I. Slyusar. "Influence of jitter in ADC on precision of direction-finding by digital antenna arrays. // Radioelectronics and Communications...

Manning, the radio operator, had made arrangements to use radio direction finding to home in to the island. The flight never left Luke Field; during...

directions for aircraft or ships to use for radio direction finding. Aircraft use automatic direction finder (ADF) receivers which use a directional antenna...

number of locations during the Cold War for high frequency radio direction finding (HF/DF) and signals intelligence (SIGINT). In the Joint Electronics...