Public warning system signals

Warble tone of siren lasting for 140 seconds

The warning og citizens by the help of sirens is accompanied by verbal information explaining what has happened and how the citizens should further behave. Further instructions for citizens are broadcast through mass news media at the same time.

"Trial siren sound"

The first Wednesday each month at 12:00 is provided acoustic test of sirens service availability by the help of the "Trial siren sound

 zvuková ukázka

Uninterrupted tone of siren lasting for 140 seconds
Text of verbal information: "Siren test, siren test, siren test". "You have just heard the siren test"

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