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ACARS
Aircraft Communications Addressing and Reporting System (ACARS)
ACARS data is used to send messages to and from commercial airlines' aircraft. A good explanation can be found here.
The frequencies used in the United States for ACARS are:
129.125
130.025
130.450
131.125
131.550
136.575
136.650
136.750
136.800
136.850
For ACARS questions, please post them on the Aircraft Monitoring forum.
Operating Tips
- In general, all that is necessary to hook up a receiver and PC to receive ACARS is a good shielded connection from the speaker or earphone of the scanner to the soundcard. A discriminator tap is not required, since it is not involved in AM reception
- There's a brief sync tone sent before each transmission; if the software doesn't receive it, no decoding will occur. Most scanners' squelch cannot open up fast enough, so keep the squelch off. There are, however, a few scanners that do open up fast enough; these include:
Decoding Solutions
With the exception of PC-ALE, packages listed on the ALE page can also copy ACARS
Software Decoders
Mailing Lists
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