thomast77
Member
Are they still in use? I recently started getting into Rail. I found some info that is dated showing Defect Detectors around 3-5 miles from me. I have never heard it. The Dispatch channel booms in here full scale.
Do most DD's talk on the road channel? Or is it data? I have never heard a DD before.
What is carried on the 457 MHz frequencies used by the ETD/FRED at the back of the train?
John
Peoria, AZ