What is ALRS or Admiralty List of Radio Signals and its volume in detail ?

ADMIRALTY LIST OF RADIO SIGNALS (ALRS):

The United Kingdom Hydrographic office’s (UKHO) produces a series of ALRS publications which is a comprehensive source of information covering all aspects of maritime communications. The ALRS publication is user friendly and gives useful information. Each ALRS publication contains coloured Photographs. Each publication is updated using the weekly notices to mariners (NM’s). The ALRS constitutes of six volumes which are as follow. A brief description of each of them is given below:

Volume 1 – Coast radio Stations NP 281 (Parts 1 & 2)

  • Maritime public Correspondence Stations Listings.
  • Global Marine Communication Services.
  • Ship Reporting System.
  • Piracy and armed robbery reporting procedures.
  • List of shore based MMSI numbers.
  • Easily updated for weekly notice to mariners.
  • Revised Annually.
World coverage in two parts:

PART 1: NP281 (1) – Coast Radio stations.  Europe , Africa and Asia (excluding Far east).

PART 2: NP281 (2) – Coast Radio Stations. Oceania, Americas and Far East.

Volume 2 – Radio Aids to Navigation, Satellite Navigation System, Legal Time, Radio Time Signal and electronic position fixing Systems NP 282

  • Listing of all Radio Direction Finding Stations.
  • Listing of all Major Satellite Navigation System fully explained and illustrated with full colour diagrams and photographs.
  • Worldwide Listing of Beacon Transmitting DGPS corrections.
  • International Standard and Daylight Saving Times and Dates.
  • International Time Signal Broadcast Details.
  • Electronic Position Fixing System details including illustrative diagrams.
  • Easily updated from weekly Admiralty Notices to Mariners.
  • Revised Annually.

Volume 3 – Maritime Safety Information Services NP 283 (Parts 1 & 2)

  • Maritime Weather services and Maritime safety information broadcasts.
  • Worldwide listing of NAVTEX Stations.
  • Submarine and Gunnery warning Details (Subfacts and Gunfacts)
  • Worldwide Listing of Radio-Fascimile Stations, frequencies and index of map areas.
  • Easily Updated from weekly Admiralty Notices to Mariners.
  • Revised Annually.
ALRS Volume 3 offers worldwide coverage in two parts:
  1. Part 1 : NP282 (1) – Maritime Safety Information Services; Europe Africa and Asia (excluding Far east)
  2. Part 2 : NP282 (2) – Maritime Safety Information Services; Oceania, the Americas and Far East.

Volume 4 – Meteorological Observation Stations NP284

  • All MET Observation Stations listed and worldwide coverage.
  • Revised every 18 months.

Volume 5 – Global Maritime Distress and Safety System (GMDSS) NP285

  • The Worldwide communication requirements for Distress Search and Rescue.
  • The only SOLAS compliant guide for GMDSS published in English.
  • Contains pull out chart size diagrams showing world coverage for all Maritime search and Rescue Regions.
  • Diagrams depicting worldwide operational DSC ranges.
  • Essential information for GMDSS students.
  • Updated from Weekly Notices to Mariners.
  • Revised Annually.

Volume 6 – Pilot Services, Vessel Traffic services and Port Operations NP 286 ( Parts 1,2,3,4 & 5)

  • Detailed Pilot information and Global Vessel Traffic services Information.
  • Diagrams depicting Reporting Points, Pilot boarding Positions and ports.
  • Harbour Communications.
  • Updated form weekly Admiralty Notices to Mariners.
  • Revised Annually.
ALRS Volume 6 offers world wide coverage in five parts:
  1. Part 1: NP 286 (1) – Pilot Services, Vessel Traffic services and Port Operations : United Kingdom and Ireland (including European Channel ports)
  2. Part 2 : NP 286(2) – Pilot Services, Vessel Traffic services and Port Operations: Europe (excluding United Kingdom, Channel Ports, Ireland and Mediterranean)
  3. Part 3 : NP 286(3) – Pilot Services, Vessel Traffic services and Port Operations: Mediterranean and Africa (including Persian Gulf).
  4. Part 4: NP 286(4) – Pilot Services, Vessel Traffic services and Port Operations: Asia and Australasia.
  5. Part 5 : NP 286(5) – Pilot Services, Vessel Traffic services and Port Operations: Americas and Antartica.
ALRS Volume 8 (NP 288) Satellite Navigation System:
  • This issue contains comprehensive information on Satellite Navigation System which includes the GPS and GLONASS.
  • Revised Annually.

Note :

All the volumes of ALRS are revised annually except Volume 4 which is revised after 18 months.

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From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses) From Marine Enclyopedia to MARINE GYAAN ACADEMY in Lucknow - Preparing YOUTH to become SEAFARERS ( for IMU-CET and various courses)