I would like to decode the Raw data format on port 30002 (dump1090) for private use.

@022908C312908F4BB84CEA4A5864011C088A741D;
@022908C87FFC5D4B1882016F50;
@022908CABF9C8D06A1019911F39230042E3210D7;

Is there any format description for this format?