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Gopher(s) ate buried Radio Dog Fence - several thousand feet - need scientific method to locate break

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Gopher(s) ate buried Radio Dog Fence - several thousand feet - need scientific method to locate break davefr 08-25-2005
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Posted by davefr on August 25, 2005, 7:41 pm


I installed a 2-3 acre section of undergound electronic Radio Dog
Fence several years ago. On those several acres are several thousand
gophers.

Today one of those thousand gophers ate one of those thousand feet of
wire and I'm getting the fault alarm.

The radio fence manual is rediculous. It says to start at the half
way point and patch back to the control unit and keep doing it until
the broken section is located. That would take me several years and
several thousand feet of patch cords. Beside that I can't pinpoint
the flags (gophers ate those too!)

I want a scientific method of pinpointing the break however I don't
want to invest $1000's in a TDR (time domain reflectometer).

I do have some old signal generators and I heard there's an AM radio
method.

Anyone have any tips at locating the break. The dog doesn't really
need it anymore but I want to preserve it for future generations.

TIA


Radiant Heat 468x60
Posted by Mark on August 25, 2005, 8:20 pm


interesting question

is the wire a single insulated conductor or is it some kind of shielded
or multiconductor cable?

do you have acess to both ends and the break is in the middle of the
loop someplace?


i guess you could connect an AM signal gen to eac h end and follow it
with a portable AM radio

Mark



Posted by Doug Miller on August 26, 2005, 3:36 am


>interesting question
>
>is the wire a single insulated conductor or is it some kind of shielded
>or multiconductor cable?

All the electronic dog fences I've ever seen use a single insulated conductor.
>
>do you have acess to both ends and the break is in the middle of the
>loop someplace?

Obviously he has access to both ends -- they're connected to the control unit.
>
>i guess you could connect an AM signal gen to eac h end and follow it
>with a portable AM radio

He already has an AM signal generator connected to each end -- the control
unit. All he needs is a radio, as I described in another post.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.


Posted by Mike Berger on August 26, 2005, 10:29 am


This should work of course, but it would be best to capture
the gopher responsible and make him show you where he committed
his crime.

Doug Miller wrote:
>
>>interesting question
>>
>>is the wire a single insulated conductor or is it some kind of shielded
>>or multiconductor cable?
>
>
> All the electronic dog fences I've ever seen use a single insulated conductor.
>
>>do you have acess to both ends and the break is in the middle of the
>>loop someplace?
>
>
> Obviously he has access to both ends -- they're connected to the control unit.
>
>>i guess you could connect an AM signal gen to eac h end and follow it
>>with a portable AM radio
>
>
> He already has an AM signal generator connected to each end -- the control
> unit. All he needs is a radio, as I described in another post.
>


Posted by on August 26, 2005, 1:58 pm

> After the last one had me going, I can't wait to see how this one
> transpires..
> Searcher
>
The last one In retrospect dumping the salt OUT OF the bags into wheel
barrow ( clean) spreading around the pool with shovel might of been a better
idea, to bad I didn't think of that.



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