radio navigational
11radio direction finder — a navigational aid establishing a fix by means of the bearings of two known radio stations. Abbr.: RDF [1920 25] * * * ▪ instrument also called Radio Compass, radio receiver and directional antenna system used to determine the direction… …
12radio-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 …
13radio navigation — noun : the process of conducting an airplane or ship from one point to another by means of radio aids (as beacons, direction finders, or radioed bearings) * * * radio navigation, navigation of an aircraft or ship with the aid of radio beacons,… …
14radio direction finder — noun : direction finder * * * a navigational aid establishing a fix by means of the bearings of two known radio stations. Abbr.: RDF [1920 25] * * * radio direction finder, = radiocompass. (Cf. ↑radiocompass) …
15radio compass — ra′dio com pass n. navig. rtv a receiver with a directional antenna for determining the bearing of a radio beacon: used as a navigational aid on ships and aircraft • Etymology: 1915–20 …
16radio magnetic indicator — An aircraft navigational instrument that, coupled with a gyrocompass or any other compass system, indicates the direction of a selected NAVAID (navigation aid) and the bearing with respect to the heading of the aircraft …
17radio beacon — ra′dio bea con n. navig. elo rtv a transmitter that sends out a distinctive signal as a navigational aid for ships and aircraft • Etymology: 1915–20 …
18Marine VHF radio — A standard handheld maritime VHF, mandatory on larger vessels under the GMDSS rules …
19Receiver (radio) — This article is about a radio receiver, for other uses see Radio (disambiguation). A radio receiver is an electronic circuit that receives its input from an antenna, uses electronic filters to separate a wanted radio signal from all other signals …
20Ooty Radio Telescope — Radio Telescope at Ooty Organization Tata Institute of Fundamental Research …
