Build a BOB: Signaling and Communication

Build a BOB: Signaling and Communication

Signaling and communication are very important survival things we need to understand. Whistling is a great way to be heard from a far distance. The great thing about a whistle is that it does not make you lose your voice and can be heard much easier than a yell. A glow stick is another thing you will want to have.

Key Takeaways:

  • A whistle is far louder than your voice, even at full “eldest child just ran the car into the side of the garage” volume.
  • Next on the list is a signal mirror. To use, you hold the mirror out and angle it in such a way that it catches the sun’s rays.
  • At night, you can use a glow stick (also known as cyalume snap sticks) and some cordage to reach out for help.

“I recommend a minimum of two whistles.”

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