457.9250 Signal ID Type

[CYUL]

Can someone identify the protocol/signal on 457.9250 MHz, CP CSL Yard?

 

[DaveH]

Web search?

Here's something on DPU:

Distributed Power Unit (DPU) - Signal Identification Wiki

Distributed power refers to the placing of an extra locomotive at an intermediate point in the middle section of a train. This locomotive unit is remotely controlled from the lead locomotive, and greatly increases both the pulling and stopping power of longer trains.

www.sigidwiki.com

Includes audio sound clip.

Dave

 

[CYUL]

Dave, thanks for this! Weird, I did check Sig ID Wiki, but missed it. Looking at the decode software, just waiting on group approval.