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YSK the basic internationally-accepted whistle communication signals.
YSK the basic internationally-accepted whistle communication signals.
A whistle is a simple and effective way of communicating over long distances, in darkness, or in other situations where direct speech is impossible.
Three blasts of the whistle is an international distress call, which is loosely translated to “Help me!”
Two blasts of the whistle is a call-back signal which means “Come here.”
One blast can mean “Where are you?” or it can be a call-back signal if you hear anything that sounds like a code.
Each whistle blast should last 3 seconds.
Source
submitted by Z4KJ0N3S [link] [3 comments] Source: You Should Know