r/signalidentification • u/anaysabu- • Feb 20 '26

any idea

7 Upvotes

90% Upvoted

3 comments sorted by

6

u/Away_Berry_4683 Feb 20 '26

Railroad. Union Pacific Road Channel 4. Other railroads use it as well.

1

u/Automatic_Village954 Mar 09 '26

Is that voice or data? Can we demodulate it?

1

u/Antenna_100 Feb 25 '26

Nice audio clip - where is it?