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Questions tagged [whistles]

Questions about whistles

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6 votes
2 answers

Under optimal conditions, how far could an emergency whistle be heard?

Whistles are often used for emergency signalling, it would be good to know how far that signal can travel and still be recognized. There are plenty of factors that would affect the distance, so how ...
Charlie Brumbaugh's user avatar
18 votes
3 answers

Where can I test an emergency whistle?

I've just 3d-printed what's supposed to be an ear-shatteringly loud emergency whistle (120 dB at one meter). However, it's apparently somewhat sensitive to printing conditions, because some people ...
Mark's user avatar
  • 2,998
5 votes
4 answers

Are there sound-based alternatives to whistle signals for group communication?

Whistles can be used to signal to group members, however the downside is that other people may think you are having an emergency. Are there any other devices that would allow you to signal with noise ...
Charlie Brumbaugh's user avatar
11 votes
4 answers

Are there standard whistle signals for communicating with separated party members?

Similar to the previous question that turned up when I searched on this topic: Is there a standard set of light signals for mountaineers?, but for sound? Repeating sets of 3 blasts is standard for ...
drwestco's user avatar
  • 113
14 votes
5 answers

What qualities to look for in a good emergency whistle?

I've always been taught to keep a whistle on me in case of emergencies - it makes sense since it's small and lightweight but could really help in an emergency. However, something I've never really ...
berry120's user avatar
  • 22.6k