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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 US for ACARS are:
129.125 United States
130.025 United States
130.450 United States
131.125 United States
131.550 United States
136.800 United States
136.850 United States
For ACARS questions, please post them on the Aircraft forum.
Operating Tips
- ACARS Frequencies in the NE US
- 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
Hardware Decoders
Discontinued Decoders from Universal Radio
Software Decoders
Mailing Lists
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