HF/DF, used to locate U-boat radio transmissions, stands for what?

Study for the US Military and Naval Strategies Exam with flashcards and multiple-choice questions, each offering hints and explanations. Prepare to excel!

Multiple Choice

HF/DF, used to locate U-boat radio transmissions, stands for what?

Explanation:
High-Frequency Direction Finding is the method used to locate U-boat radio transmissions. In practice, Allied stations intercept the German submarine’s radio signals and use directional antennas to determine the bearing to the transmitter. When bearings from several locations are combined, you can triangulate the submarine’s position. The nickname Huff-Duff comes from this practice and how quickly it was used in hunting subs. Enigma was the German cipher machine that encrypted messages, not the method for locating a transmitter. Sonar detects underwater objects by sound, and radar detects distant objects by radio waves; neither describes tracking a radio source’s location.

High-Frequency Direction Finding is the method used to locate U-boat radio transmissions. In practice, Allied stations intercept the German submarine’s radio signals and use directional antennas to determine the bearing to the transmitter. When bearings from several locations are combined, you can triangulate the submarine’s position. The nickname Huff-Duff comes from this practice and how quickly it was used in hunting subs.

Enigma was the German cipher machine that encrypted messages, not the method for locating a transmitter. Sonar detects underwater objects by sound, and radar detects distant objects by radio waves; neither describes tracking a radio source’s location.

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