automatic beacon

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• Automatic Packet Reporting System — (APRS) is an amateur radio based system for real time tactical digital communications of information of immediate value in the local area. In addition, all such data is ingested into the APRS Internet system (APRS IS) and distributed globally for …   Wikipedia

• Automatic link establishment — Automatic Link Establishment, commonly known as ALE, is the worldwide de facto standard for digitally initiating and sustaining HF (High Frequency) radio communications.cite web|title=Frequency Agile Systems in the MF/HF Bands |author=Telecom… …   Wikipedia

• automatic landing system — A system that permits aircraft to be landed automatically without any input from the pilot. In a typical system, the aircraft approaches from the outer marker to the inner marker beacon. At the inner marker beacon, the aircraft flight path is… …   Aviation dictionary

• Automatic Direction Finder — Ein Radiokompass, auch ADF (engl. automatic direction finder ), RDF (engl. radio direction finder), oder Funkkompass ist eine bordseitige Empfangsanlage zur Funknavigation mittels Funkpeilung zu einem NDB (dtsch. ungerichtetes Funkfeuer ) oder zu …   Deutsch Wikipedia

• Automatic Direction Finder — Radiocompas Un radiocompas ou radiogoniomètre est un récepteur radio embarqué à bord d un navire ou d un avion lui permettant de recevoir et d indiquer la direction de balises ou de radiophares. Ce récepteur comporte une rose graduée de 0 à 360° …   Wikipédia en Français

• automatic direction finder — Equipment to determine the direction from which an electromagnetic signal is being generated. It can either be airborne or ground based equipment. It operates in medium or low frequencies, consists of basically a loop aerial, and gives the null… …   Aviation dictionary

• Non-directional beacon — Radio Tower of NKR Leimen Ochsenbach, Germany This symbol denotes an NDB on an aeronaut …   Wikipedia

• Air traffic control radar beacon system — The air traffic control radar beacon system (ATCRBS) is a system used in air traffic control (ATC) to enhance radar monitoring and separation of air traffic. ATCRBS assists ATC radars by acquiring information about the aircraft being monitored,… …   Wikipedia

• crash locator beacon — An automatic emergency radio locator beacon to help searching forces locate a crashed aircraft. See also emergency locator beacon; personal locator beacon …   Military dictionary

• emergency locator beacon/transmitter — A generic term for all radio beacons used for emergency locating purposes. These may be personal locator beacons or crash locator beacons. These beacons may be automatically activated by impact or water immersion and transmit a code on emergency… …   Aviation dictionary

• Beam Approach Beacon System — (or BABS) is an automatic RADAR landing system developed in the early 1940 s.It is a responder (or transponder) mounted in a Hillman van and placed at the end of the runway. In some cases fixed sites were installed and by the mid 1950 s Standard… …   Wikipedia