electronic dog whistle

[Shane Kirkman]

Hi ,
Dose anyone know of a circuit for a annoying electronic dog whistle I
could make.
I am surrounded by 12 dogs with in 4 houses of my place.
These dogs bark constantly day and night, and I thought it was about time
for me to annoy them, preferably by some electronic device I could make,( as
I am learning electronics I thought it would be a worthwhile project.)

Did a bit of googling but haven't found much yet.

Thanks Shane.

 

[Rich Grise]

Shane Kirkman wrote:

Hi ,
Dose anyone know of a circuit for a annoying electronic dog whistle
I
could make.
I am surrounded by 12 dogs with in 4 houses of my place.
These dogs bark constantly day and night, and I thought it was about time
for me to annoy them, preferably by some electronic device I could make,(
as I am learning electronics I thought it would be a worthwhile project.)

Did a bit of googling but haven't found much yet.

Whatever you do, don't punish the dogs for having stupid masters. Tape

record the dogs, then when the owners are supposed to be sleeping and
the dogs are quiet, play the tape through a 1000W PA.

Or just mow the lawn at 3 AM or so.

Or maybe go talk to them?

Cheers!
Rich

 

[Terry Pinnell]

"R. Steve Walz" <rstevew@armory.com> wrote:

Shane Kirkman wrote:

Hi ,
Dose anyone know of a circuit for a annoying electronic dog whistle I
could make.
I am surrounded by 12 dogs with in 4 houses of my place.
These dogs bark constantly day and night, and I thought it was about time
for me to annoy them, preferably by some electronic device I could make,( as
I am learning electronics I thought it would be a worthwhile project.)

Did a bit of googling but haven't found much yet.

Thanks Shane.
-------------
An astable LM555 and any tiny tweeter, they use that for those dumb
"pest scarers" or whatever, grab one of those and tune it with a
counter-divider on it so you can hear it too. 30kHz is close! ;-

-Steve

Here's the one I made a year or so ago.
http://www.terrypin.dial.pipex.com/Images/DogDeterrent.gif

But, as per my subsequent posts, I was disappointed in its
performance. I should have used inductor to step up output to
resonance voltage. Still intend to incorporate that change some day.

Meanwhile I bought a commercial 'Dazer' unit.
http://www.dazer.com/dog-deterrent.jsp

I've still not used it in self defense, but as you see from
http://www.terrypin.dial.pipex.com/Images/Dazer1.gif
its peak voltage is about 85 V, so should be more effective than mine.

--
Terry Pinnell
Hobbyist, West Sussex, UK