Numéro
J. Phys. Colloques
Volume 51, Numéro C2, Février 1990
Premier Congrès Français d'Acoustique / First French Conference on Acoustics
Page(s) C2-591 - C2-594
DOI https://doi.org/10.1051/jphyscol:19902139
Premier Congrès Français d'Acoustique / First French Conference on Acoustics

J. Phys. Colloques 51 (1990) C2-591-C2-594

DOI: 10.1051/jphyscol:19902139

UNDERWATER TELEPHONY : PAST, PRESENT AND FUTURE

B. WOODWARD

Electronic and Electrical Engineering Department Loughborough University of Technology, Loughborough, GB-Leicestershire LE11 3TU, Great-Britain


Abstract
Underwater telephones allow divers to talk to each other or to a supervisor on the surface. This paper outlines the principles of various systems used in the past, how they have improved for use at present, and what developments are likely in the future.