Underwater Communications System for Use by Free Swimming Divers.
Abstract
The need for a compact, reliable, and inexpensive communications system for untethered SCUBA divers is pointed out as being acute. An investigation into various characteristics of the undersea medium leads to the choice of a 40 kHz acoustic carrier, frequency modulated by plain voice, as the optimal approach. Investigations into microphone, earphone, and physiological problems encountered in the diver's environment are reported. A communication system, given the acronym DUCS-I (Diver's Underwater Communication System) is designed, built, analyzed and tested. Recommendations are provided for future improvements to the system prior to its proposed implementation into all phases of U.S. Navy free swimmer diving operations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1975
- Accession Number
- ADA013483
Entities
People
- David Campbell Steere
Organizations
- Naval Postgraduate School