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Technology
Assessment & Research (TA&R) Program
| Project
Number |
15 |
| Date of Summary |
March 31, 1982 |
| Subject |
Hardhat Communicator |
| Performing Activity |
Harry Diamond Laboratories |
| Principal Investigator |
Mr. R. F. Shoemaker |
| Contracting Agency |
Minerals Management Service |
| Estimated Completion |
Complete |
| Description |
The objective was the assessment
of technology and the evaluation of promising electrical and physical configurations for
personal RF communication systems mounted in safety helmets. |
| Progress |
Complete. Evaluations were made
on the four systems by conducting tests offshore. Results indicate that a simple
modification of a commercial low-power frequency modulated system operating in the 49-MHz
public service band could be used to considerable advantage. Penetration through platform
structures was excellent and communication was possible to all points on the platform from
within an enclosed steel compressor room where noise levels were as high as 97 DBA. |
| Reports |
AA (562
KB)
 |
Shoemaker, R. F., Harrison, E.
H., A Communicator for High Noise Level Environments, Harry Diamond Laboratories, Silver
Spring, Maryland, HDL-TM-81-11, April 1981. |
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