What is the freq range of the circuit (and a dogs ultrasonic hearing range, for that matter)?
–I have typically used a frequency above the human range ~ 20 kHz. Dogs seem to respond to almost any frequency up to (and maybe above) 30 kHz. My main intent was to not attract the owner’s attention, but use enough power & directivity to get the animal’s attention! I hope this helps, let me know if you have other questions. glen P.S. I would very much enjoy hearing your results…
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- What is the freq range of the circuit (and a dogs ultrasonic hearing range, for that matter)?
