What does the Long Range Acoustic Device (LRAD) primarily do?

The Long Range Acoustic Device (LRAD) is primarily used to amplify sound, allowing a voice or recorded message to be transmitted over long distances. This is particularly useful in maritime security and law enforcement operations, where clear communication is essential in potentially dangerous situations. The LRAD can project a message clearly even in noisy environments, making it a critical tool for ship-to-ship and ship-to-shore communications.

Its design allows it to emit sound frequencies that can travel further than typical loudspeakers, making it effective for both warning and conveying instructions to individuals or groups. This capability enhances safety by enabling operators to communicate with potential threats or distressed vessels without needing to approach them closely.

The other choices encompass functions that the LRAD does not perform. It does not detect underwater vessels, serve as a navigation tool, or function as a radar system for ship tracking, which are roles suited for other technologies and devices. These distinctions help clarify the unique role of the LRAD in maritime and security operations.