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

• 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.