Aircraft Communications Addressing and Reporting System (ACARS)

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Aircraft Communications Addressing and Reporting System (ACARS)
ACARS.jpg
Frequencies 129 MHz,137 MHz
Frequency Range 129 MHz - 137 MHz
Mode AM
Modulation MSK
ACF
Emission Designator
Bandwidth 5 kHz
Location Worldwide
Short Description Short messages sent to and from aircraft
I/Q Raw Recording Download file
Audio Sample

In aviation, ACARS (/ˈeɪkɑːrz/; an acronym for Aircraft Communications Addressing and Reporting System) is a digital datalink system for transmission of short messages between aircraft and ground stations via airband radio or satellite. The protocol was designed by ARINC and deployed in 1978, using the Telex format. More ACARS radio stations were added subsequently by SITA.


Samples[edit]

Direct Samples


Frequencies[edit]

ACARS Frequencies
Frequency Location
129.125 MHzMegaHertz (MHz) 10^6 Hz USA and Canada Additional
130.025 MHzMegaHertz (MHz) 10^6 Hz USA and Canada Secondary
130.425 MHzMegaHertz (MHz) 10^6 Hz USA Additional
130.450 MHzMegaHertz (MHz) 10^6 Hz USA and Canada Additional
131.125 MHzMegaHertz (MHz) 10^6 Hz USA Additional
131.450 MHzMegaHertz (MHz) 10^6 Hz Japan Primary
131.475 MHzMegaHertz (MHz) 10^6 Hz Air Canada Company Channel
131.525 MHzMegaHertz (MHz) 10^6 Hz European Secondary
131.550 MHzMegaHertz (MHz) 10^6 Hz World Primary
131.725 MHzMegaHertz (MHz) 10^6 Hz Europe Primary
131.850 MHzMegaHertz (MHz) 10^6 Hz New European Channel
136.700 MHzMegaHertz (MHz) 10^6 Hz USA Additional
136.750 MHzMegaHertz (MHz) 10^6 Hz USA Additional
136.800 MHzMegaHertz (MHz) 10^6 Hz USA Additional
136.850 MHzMegaHertz (MHz) 10^6 Hz SITA North America
131.550 MHzMegaHertz (MHz) 10^6 Hz SITA Australia & NZ
131.450 MHzMegaHertz (MHz) 10^6 Hz ARINC Australia & NZ

Decoding Software[edit]

Hobby Level Software
Professional Software

Decoding Tutorials[edit]

Antennas[edit]

ACARS is vertically polarized.

Video Examples[edit]

Additional Links[edit]

Additional Images[edit]