Underwater communication past, present and future

Abstract Part A of this paper is a brief report on the contributions made by various workers with experience in the field of underwater communications, which includes both data telemetry and speech, at an informal meeting held on the 11 th and 12th April 1967 at the Department of Electronic and Electrical Engineering of the University of Birmingham. The main aim of the meeting was to bring together representatives of institutions, companies, etc., who are actively engaged in research into this subject so that some idea of the requirements, problems and future developments of underwater communication over the next five years could be formulated.