Originally Posted by
jugofpropwash
Wouldn't it helpful to have the pinger at a frequency where it could be easily heard? (Or quite possibly at both a high and low frequency.) Wouldn't an audible ping help divers/searchers to quickly locate the box under certain conditions?
Hydroacoustics are best left to dolphins and submarines. Humans can hear sound under water but determining direction and distance is not possible without help. Additionally, the higher the frequency, the more ‘directional’ it becomes.