direction finding
Synonyms
Examples
Additionally, a listener has the ability to determine the source of a sound by binaural direction finding.
By the 1970s, the Post Office Handbook for Radio Operators listed over a hundred Q codes, covering a wide range of subjects including radio procedures, meteorology, radio direction finding, and search and rescue.
Furthermore, replies from the boats enabled the Allies to use direction finding (HF/DF, called " Huff-Duff ") to locate a U-boat using its radio, track it and attack it (often with aircraft able to sink it with impunity).
Detailed information about submarine movements was available. citation Both the British and German interception services began to experiment with direction finding radio equipment in the start of 1915.
Captain H. J. Round working for Marconi had been carrying out experiments for the army in France and Hall instructed him to build a direction finding system for the navy.
For example, if a certain type of radio is known to be used only by tank units, even if the position is not precisely determined by direction finding, it may be assumed that a tank unit is in the general area of the signal.