I am having a major problem with a dog barking next door at all times of the day and night. I have tried an off the shelf device and this has not worked. I am now building a new circuit which I hope has uploaded to this post. I have 2 questions:
1) How can I increase the power output
2) WHat is the best speaker/sounder to use to produce the loudes ultrasonic sound?
Many thanks all.
1) How can I increase the power output
2) WHat is the best speaker/sounder to use to produce the loudes ultrasonic sound?
Many thanks all.