Invisible fence for dogs.

[Check It Out]

I'd like to make my own invisible (underground) fence for my dog. Anyone
have links to circuit schematics for these 9-10kHz trans, and rec?

 

[Ken Taylor]

I'd like to make my own invisible (underground) fence for my dog. Anyone
have links to circuit schematics for these 9-10kHz trans, and rec?

What makes you think that frequency will do the job?

 

[Jeroen Vriesman]

9-10kHz is still in the human hearing range.

I think you need something above 20kHz (mybe 22kHz some young children can
hear sounds above 20kHz).
But some of these sounds are used to call dogs, and that's not what you
want I think.

So only when you make a very loud utrasound, it's not the sound itself
which scares them, but the loudness, (maybe loud-pulsating ?), since most
dogs are sensitive from 50Hz-40kHz, I would use about 35kHz.

But you might just scare away lots of animals that way, and some asmatic
baby's might freak out too. (asmatic children can sometimes hear up to
35kHz!).

There are other ways too, but that's a bit off topic, I did some workshops
with Michael and Treeny Roads, they teach you how to communicate with
animals, and it does work, I never had any problems with mice or insects
anymore since I'm using these techniques. ( http://www.michaelroads.com/ )

Cheers,
Jeroen.

 

[Paul Burridge]

There are other ways too, but that's a bit off topic, I did some workshops
with Michael and Treeny Roads, they teach you how to communicate with
animals, and it does work, I never had any problems with mice or insects
anymore since I'm using these techniques. ( http://www.michaelroads.com/ )

I can't see any reference on the site to any "Dr. Doolittle" type
skills.
How does one stop other people's cats crapping on the lawn?

 

[Andrew Howard]

How does one stop other people's cats crapping on the lawn?

errr... Do what my mum used to do, and put kebab skewer thingits poking out
of the ground at random angles. We never saw any evidence of cat after
that...

Andrew Howard

 

[Paul B]

What makes you think that frequency will do the job?

Perhaps he meant to say 9-10*Kv* transformer.

 

[Jeroen Vriesman]

I can't see any reference on the site to any "Dr. Doolittle" type
skills.
How does one stop other people's cats crapping on the lawn?

throw your used coffee-powder on your lawn. cats hate it. But that doesn't
have anything to do with Dr. Doolittle skills.

 

[Ken Taylor]

http://www.michaelroads.com/ )

I can't see any reference on the site to any "Dr. Doolittle" type
skills.
How does one stop other people's cats crapping on the lawn?
--

A 555, a 2N3055 and a car ignition coil, with a long wire around the yard.
Works a treat - they figure out *real* quick not to come around. Only needs
to be on for a week or so, then they stay away until the next litter of
strays starts roaming a few months later (then start again).

Ken