Note 1 to entry: A sonar receiver typically includes electrical signal conditioning, e.g. pre-amplification, and other signal processing, e.g. beamforming.

Note 2 to entry: A sonar used to receive a signal is said to operate in receive mode.

Note 3 to entry: The sonar receiver is sometimes regarded as the electronics in the sonar that controls the reception of a sound signal by means of a transducer or array.