GMDSS - GLOSSARY OF TERMS


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A

AAIC

Accounting Authority Identification Code

Entry link: AAIC

ADRS

Admiralty Digital Radio Signals.
Entry link: ADRS

AIS

Automatic Identification System

Entry link: AIS

AIS–SART

AIS Search and Rescue Transmitter.
Entry link: AIS–SART

ALRS

Admiralty List of Radio Signals.
Entry link: ALRS

AM

Amplitude Modulation. A form of modulation where the amplitude of a carrier wave is made to vary in sympathy with the amplitude of the input signal. It is also known as A3E, when used for analogue voice double
Entry link: AM

Amp

The short–form term for ampere. A measurement of electrical current in a circuit, commonly called an ‘amp’. One ampere is a certain number of electrons passing by the point of measurement in one second. Symbol for ampere(s) is A.
Entry link: Amp

AMSA

Australian Maritime Safety Authority.
Entry link: AMSA

AMVER

Automated Mutual–Assistance Vessel Rescue System. AMVER is a computer–based voluntary global ship reporting system used worldwide by search and rescue authorities to arrange assistance to persons in distress at sea. It is sponsored by the United States Coast Guard.
Entry link: AMVER

ANSWERBACK

A string of telex characters which uniquely identify an individual telex machine or terminal. It can be sent from a telex terminal via the ‘HERE IS’ command, and requested from another telex machine via the ‘WRU?’ (Who are you?) command.
Entry link: ANSWERBACK


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