finder aerial
1Radio direction finder — Civil Air Patrol members practice using a handheld radio direction finder to locate an emergency locator transmitter …
2Height finder — A height finder is a ground based aircraft altitude measuring device.TechnologyEarly height finder implementations were optical devices and later migrated to radar devices. Devices combining both optics and radar were deployed by the United… …
3nodding aerial — An aerial oscillating only, normally in the vertical plane, as in PARs (precision approach radars) and height finder radars. See also height finder radar …
4direction finder — Synonyms and related words: Bourdon tube, Gyropilot, Gyrosin compass, HFDF, Mach meter, RDF, absolute altimeter, accelerometer, aerial reconnaissance camera, aerometer, aeroscope, air log, altigraph, altimeter, ammeter, anemograph, anemometer,… …
5automatic 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… …
6sense aerial — A type of nondirectional radio antenna used with an automatic direction finder, which picks up signals with equal strength from all directions. The sense aerial helps remove the 180° ambiguity, which is a feature of highly directional loop… …
7height-finder radar — One that indicates the precise height of a target. It has a multilobe beam nodding aerial. Most modern radars are 3 D (three dimensional) and have a height finding function built into them …
8photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
9Google Maps — Screenshot of Google Maps showing a route from San Francisco to Los Angeles on Interstate 5 …
10Coincidence rangefinder — American soldiers using a coincidence rangefinder with its distinctive single eyepiece during army maneuvers in the 1940s …
