Admiralty List of Radio Signals (ALRS): Vol. 3, Part 1 Maritime Safety Info. Services Europe, Africa and Asia (excluding Far East) (NP283-1), 6th Edition 2025 Arafura Sea or left quadrant is colored

or left quadrant is colored solid blue

It is ideal for professional mariners and leisure sailors

British Admiralty Nautical Chart 2137: Selat Gelasa is a standard nautical chart

POUCH VOLUME: 4

Red (lower left)

Admiralty List of Radio Signals (ALRS): Vol. 3, Part 1 Maritime Safety Info. Services Europe, Africa and Asia (excluding Far East) (NP283-1), 6th Edition 2025 Arafura Sea or left quadrant is coloredAbout the Admiralty List of Radio Signals (ALRS) The Admiralty List of Radio Signals series provides comprehensive information on all aspects of Maritime Radio Communications. The data is organized into six volumes, some divided into several parts for ease of handling. Each of the six volumes is presented in a user friendly format with full color photographs and diagrams. The contents range from a complete listing of stations handling Maritime Public