The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: Terry Pinnell
Subject: Re: Need real loud anti-dog barking ultrasonic device.
Date: Thu, 05 Dec 2002 19:53:53 +0000
NNTP-Posting-Date: Thu, 5 Dec 2002 19:54:14 +0000 (UTC)
X-Newsreader: Forte Agent 1.92/32.572
"Russ Lavergne" wrote:
>I appreciate everyone's help and advice but I am still stuck without a
>design. I have been searching the web but I can't seem to find anyone to
>design this thing. Can anyone point me to someone or some web site or
>company that could help design this device? Thank you all I appreciate the
I was looking for a 'dog deterrent' over a year ago. One of the web
pages I found was
and you might like to investigate that product. I'd be interested in
feedback, because disappointingly the version I designed and built
myself failed spectacularly in field tests while on holiday in Poland
My design is shown at
and I was quite pleased with it initially because its audible setting
(one way of the 2-way switch) gave an ear-splitting sound with a fresh
pair of PP3 NiMH batteries. I therefore (rashly) assumed its
ultrasonic setting would have a suitable effect on any savage dogs I
encountered while walking in remote areas.
Happily, unlike the previous year in Tuscany, I had no cause to use it
in anger. But curiosity had to be satisfied, so I discretely tried it
as I strolled through the crowded streets of Zakopane. No visible
effect on the unwitting victims whatsoever. Even a poodle at 2 metres
remained unaware of its output. In fact, I convinced myself after a
few such abortive experiments that it was broken or that the batteries
had failed. But switching fleetingly to the 'human' setting made that
look very unlikely.
I reckon it's just too low-powered. Which is why I'm keen to hear from
any Dazer users. On that walking holiday in Tuscany (when I was
attacked by two dogs, prompting the project), another member of the
group demonstrated the Dazer to me (on a barking Alsatian behind
gates). It definitely calmed it down and made it back off, so its
design is clearly superior to mine.
Hobbyist, West Sussex, UK
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup