Frequencies 15.5K Hz through 25K Hz to repel animals such as dogs, cats, raccoons, badgers, skunks, etc. An amplifier or a stereo amplifier should handle the range of 15.5KHz through 22KHz. Feed the frequency sweep of Spooky2 output to the 'Aux' (auxiliary port), 'Mon' (tape Monitor) or "Line in" amplifier input. In Spooky2 software set it to 1.5 AC Voltage (Amplitude) selects a Sine Wave. Make sure the speaker system has included a high range "tweeter" speaker driver. Many people can hear some of these frequencies, as well as the animals such as dogs, cats, raccoons, badgers, and skunks.
For more details, please check the link:
https://www.facebook.com/groups/spooky2/permalink/1335873746574525/
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