Dogs Repeller Circuit ?

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Abu Ammora

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How to extend the range of the dog repeller ct , as to annoy dog for about 5 meters , Is that require some modification in the speaker or the o/p power or supply voltage ? is it better to use ultrasonic module TX intead of the speaker ?

can any one help me?

thanks !
 

i dont think so if that can be extended..
 

It is very interesting, please, can you reference where I can find the repeller description?
 

Using special ultrasonic TX or high frequency audio speaker (so called "horn", prefferably piezo-electric based) should gain better results.
 

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