As shown in the illustrated block diagram for a digitized echo sounding system, what statement is true concerning the transmission and reception of acoustical energy? EL-0185 Illustration EL-0185: the U.S. Coast Guard has not released this illustration.

Correct Answer: Option A — The acoustical energy is produced as rapid, short high intensity pulses and transmitted from the transducer and the reflected acoustical energy is received by the same transducer.

Digitized echo sounders operate by generating short, high-intensity electrical pulses converted into acoustic energy by a piezoelectric transducer. The same transducer acts alternately as a receiver, capturing the reflected sound waves returning from the seabed to process depth calculations.