direction finder

noun

, Radio.

1. a receiver with a loop antenna rotating on a vertical axis, used to ascertain the direction of incoming radio waves.

direction finder

noun

1. a highly directional aerial system that can be used to determine the direction of incoming radio signals, used esp as a navigation aid AbbreviationD/FDF

Derived Forms

• direction finding, noun

Other Words From

• direction finding noun

Word History and Origins

Origin of direction finder¹

First recorded in 1910–15

Example Sentences

Baron adjusted the direction finder and made scribbled calculations.

From Project Gutenberg

Otherwise, the Federal Communications Commission would pick you up, use a direction finder, and move in on your operation.

From Project Gutenberg

Under Hume's control the direction finder passed back and forth without bringing any answering code click from the mike.

From Project Gutenberg

Like a sonic direction finder, Buregarde turned his head and listened.

From Project Gutenberg