An acoustic transmitter and receiver, particularly for localizing casualties in avalanche rescue operations.

摘要

An accoustic transmitter and receiver (1), particularly designed to be used to localize casualties in avalanche accidents. It comprises both an accoustic transmitter part (4b) which is arranged to emit an accoustic signal and a receiver part (4a) for reception of said accoustic signal, transforming it into electric current, amplifying the current and emitting a loud sound signal with the aid of which persons (9) buried underneath masses of snow (8) may be localized.