MIL-A-15303P, MILITARY SPECIFICATION: AUDIBLE SIGNALS - ALARMS, BELLS, BUZZERS, HORNS, AND SIRENS, ELECTRONIC SHIPBOARD (19-NOV-1986)

MIL-A-15303P, MILITARY SPECIFICATION: AUDIBLE SIGNALS - ALARMS, BELLS, BUZZERS, HORNS, AND SIRENS, ELECTRONIC SHIPBOARD (19-NOV-1986)., This specification covers various types of audible signals for alarm and signaling purposes on Navy ships.