The 2018/19 edition of ALRS Volume 6 Part 2 contains the latest information received by the UKHO.
All reasonable effort has been made to ensure that this Volume contains all of the information obtained and assessed by the UKHO by the date of publication. Information received after that date will be included in Section VI of the Weekly Edition of ADMIRALTY Notices to Mariners.
This edition supersedes the 2017/18 edition which is cancelled.
ADMIRALTY List of Radio Signals (ALRS) provides a comprehensive source of information on all aspects of Maritime Radio Communications.
The purpose of this Volume is to provide information on the following topics:
- Pilotage, Vessel Traffic Services & Vessel Reporting Systems
- Port Contact Information
Directions for updating this Volume
Record of Updates
Annual Notices to Mariners
Purpose of ADMIRALTY Radio Signals
How to report new or suspected dangers to navigation or changes observed in aids to navigation
UKHO contact details
How to obtain ADMIRALTY Charts and Publications
Related ADMIRALTY Publications and their contents
Abbreviations and Glossary
Explanatory Notes of Entries and Service Details
The IMO Standard Ship Reporting System
Phonetic Alphabet and Figure Code
Certificate of Authenticity