U cannot visually confirm ur about to get pulled off til it's too late. U can hear them calling train symbols and unit numbers and know sometimes if ur train is doubling back it's final time or just leaving etc etc and I find it incredibly useful to have one if u care where ur going, why ur stopped on this single track after ur train went into emergency, blah blah. Diff companies give diff info on the radio. UP often just says the unit number of the train they're talking to but csx and NS for example often call the symbol out. Then u know what train ur on or looking at.
I don't really know how many times we're gonna have to say this but:
Please
USE
THE
SEARCH
BAR.
We've all been trynna not be assholes about this but dear lord is it TRYING to see the same questions that have been answered pretty thoroughly get asked again.
Here's ur answers (took me about 30 seconds to find via "search scanner- titles only") on a silver spoon, delicately placed into ur tender mouth:
And here's my favorite comment on that thread
View attachment 58126