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The simple bat detector uses frequency division to lower the bat’s chirping to a frequency we can hear. For example, if a bat is calling at 91kHz the system will divide it by 16 and put out 5.7kHz.
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Trying out my new Makro Multi-KRUZER Metal Detector at the beach! (This is fun & relaxing!)
In today's video, I used the Makro Multi KRUZER for the first time! We spent the afternoon on a beach and searched for ...
The best metal detectors from Garrett, Minelab and more brands. Which metal detectors from UK retailers find gold again and again? Our expert reviews have the answer.
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