PCM1024Z is the format that Futaba radios use to transport channel and failsafe information to their PCM receivers.
A few threads at Runryder where devoted at reverse engineering the PCM1024Z protocol:
Protocol PART I
Protocol PART II
Hardware / Software
In the process of decoding the protocol I developed multiple tools:
If you would like to receive the code behind these tools, drop me a line at fredericgoddeeris at hotmail dot com. Do not expect high-quality code; it is typical proof-of-concept code...