Amplifies and sends the outgoing ping or communications audio upon command from the receiver, and indicates the state of the transmitter.

The AQS-502 is a lightweight echo-ranging dipping sonar capable of detecting and classifying moving and stationary underwater objects. The sonar set will provide information concerning range, bearing and speed, at display ranges of up to 20,000 yards.
Amplifies and sends the outgoing ping or communications audio upon command from the receiver, and indicates the state of the transmitter.
