I'm not conversant with the system or the failure, but if the problem is in the trains' equipment, how does a hand-held radio help? Most crews already have hand-held units for voice communications, which I imagine would be separate from the train control system.

The problem appeared to have been network wide, it is hard to believe that a couple of hundred trains could fail simultaneously?
Brian

On Tuesday, 14 March 2023 at 01:03:46 pm AEDT,peterm...@... petermudie100@...> wrote:

See image. 

Peter