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*** Special Notice Regarding LORAN Closure: *** In accordance with the 2010 DHS Appropriations Act, the U.S. Coast Guard terminated the transmission of all U.S. LORAN-C signals on 08 Feb 2010. This termination does not affect U.S. participation in the Russian American or Canadian LORAN-C chains. U.S. participation in these chains will continue temporarily in accordance with international agreements. You may read more and download pertinent documents via our LORAN-C page.
LORAN C
Primary Mission Areas:
Maritime Information:
LORAN-C USER HANDBOOK

The LORAN-C User's Handbook, COMDTPUB P16562.6, provides an overview of LORAN-C, use of LORAN-C receivers, interference to LORAN-C and its effects, nautical charts and tables containing LORAN-C information, in addition to other applicable topics.

An abbreviated table of contents is shown below. Click on the individual links to download separate chapters or you may download the entire manual (2 MB).

Book Forward and Table of Contents
Chapter I: Introduction and Overview
Chapter II: The LORAN-C System: A More Detailed View
Chapter III: Position Determination and Accuracy
Chapter IV: Receiver Features and Their Use
Chapter V: Practical Aspects of LORAN Navigation
Chapter VI: LORAN-C Charts and Related Information
Chapter VII: Installation and Related Matters
Appendix A1: Sources of Interference (part 1)
Appendix A2: Sources of Interference (part 2)
Appendix B: Data Sheets and Coverage Diagrams
Appendix C: Glossary of Terms
Appendix D: Abbreviations and Acronyms
Appendix E: Abbreviated LORAN-C Bibliography
Appendix F: Milington's Method
Appendix G: GDOP Explained and Illustrated
Appendix H: Use of Skywaves for Navigation

You may download this document for your use. The various sections are in pdf format and may be used with the free Acrobat Reader.

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