>I sometimes monitor the local railroad yardmaster dispatch. Every >once and a while I hear what sounds like short Packet data being sent. >Tried to decode using various Packet software, but nothing decodes. >Anyone know what they are sending? I hear DTMF tones once and a >while, but I think they use those tones to operate track switches. >
End of train or cab telemetry data, I'd say. A few sources sell the necessary modem to decode these messages: http://www.traintalkcomm.com/traintalkcomm_005.htm de Peter K1PGV
