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HOWA EP 106 - DAVID HASKELL

hanging out with audiophiles

CHAPTER

How to Fake Out a Bat on a Summer Night

You rattle your keys like just some car keys. That makes sounds that we can hear, but it also makes a heck of a lot of ultrasound. You feed that into an Anabat or any other kind of ultrasonic detecting device. And wow, you realize there's always clicking. In fact, that's one way to fake out a bat on the summer evening is you see a bat swooping down.

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