Category:Sound locators

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This category refers to passive acoustic detectors which were used as a military air defense technique between World War 1 and 2 to detect approaching enemy aircraft by listening for the sound of their engines. The development of radar in World War 2 rendered this technology obsolete.


This category has only the following subcategory.


Media in category "Sound locators"

The following 30 files are in this category, out of 30 total.