Engineering Studies in Support of the Implementation Plan for the Distress Alerting and Locating System (DALS). Volume I.
Abstract
The report documents the analysis of several engineering questions associated with the implementation of a Distress Alerting and Locating System (DALS). These engineering questions fall under two major categories. If the existing USCG VHF/FM National Distress System receiving sites were used for DALS, what coverage zones would be achieved. With these coverage zones, can three frequency Omega ambiguity resolution be achieved. If not, what techniques are available to resolve the ambiguity. What interference effects will be experienced if a DALS transmission and a VHF/FM voice transmission are coincident in time in the same VHF/FM channel assignment (i.e., Channel 16). What technical problems will be encountered in attempting to use the communications facilities associated with the existing National Distress System. Under the second category, the following specific question was addressed. What are the costs and benefits associated with DALS systems with varying capabilities. Results were obtained in all the above questions and are contained in the report.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 30, 1974
- Accession Number
- ADA005273
Entities
People
- E. Patton
- Justin M. Brown
- Min Suk Kim