Empfangssystem akustischer Signale für Schiffe
SR 8200
Jotron
on watch to hear outside sounds within frequencies 70-820 Hz, inside a totally
enclosed bridge as an additional aid to perform his outlook requirement. By means
of 4 pcs microphones 8201 mounted suitable outside, the main central 8200 will
reproduce and amplify incoming sounds, and indicated approximate direction from
where the sound is received.
