There was a false alarm of the old EBS system (predecessor to the modern EAS) in 1971 (you can find a recording of it) and the problem they had was that lots of stations just ignored it, because it happened at the same time as regularly scheduled tests (due to how it happened).
There's a reason they made it automatic.
There was a false alarm of the old EBS system (predecessor to the modern EAS) in 1971 (you can find a recording of it) and the problem they had was that lots of stations just ignored it, because it happened at the same time as regularly scheduled tests (due to how it happened).