radio direction finder

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noun

a navigational aid establishing a fix by means of the bearings of two known radio stations. Abbreviation: RDF

QUIZ

WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?

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Question 1 of 7

Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of radio direction finder

First recorded in 1920–25

Charles “Father” Coughlin, a raving anti-Semite, was one of the most popular radio hosts in the country.
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Pleasure shoots magically in every direction like an explosion of sparks.
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Absent a body, no one can say with absolute certainty whether Castro is dead, even if all signs point in that direction.
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During coverage of that issue, Farrell went on a WSMB AM radio talk show to defend Duke.
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An arrow appears indicating the direction you will launch your ball.
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A lateen sail was visible in the direction of Cat Island, and others to the south seemed almost motionless in the far distance.
The Awakening and Selected Short Stories|Kate Chopin
After a bit of waiting, Mac decided that the smoke was floating from a certain direction, and we began to edge carefully that way.
Raw Gold|Bertrand W. Sinclair
Even genius, however, needs direction and adjustment to secure the most perfect and reliable results.
Expressive Voice Culture|Jessie Eldridge Southwick
Now many people think that we are moving in the direction of world socialism to-day.
The Salvaging Of Civilisation|H. G. (Herbert George) Wells
His superior talents and untiring industry were under the direction of philanthropic and Christian impulses.
The Every Day Book of History and Chronology|Joel Munsell