Admiralty list ofradio signals
By: (Hydrographic Department). 1977. (Vol.5a),  Diagrams relating to radio communication, position-fixing systems and traffic management.
Contributors: Great Britain. Hydrographic Department.
Series: NP275(5a)
Publisher: Hydrographer of the Navy
Published: 1977
Place of publication: (Taunton)
Language: eng
Number of pages: 30
Subjects: Aids to navigation -- Lists.; Radio in navigation.
Notes: Note book format.