[Lowfer] FW: Invisible dog fence LF and MF interference is 0.5oz of C4 the answer?

[Zack Widup]

Is this one of those systems where there is a wire with an LF signal
placed on it, and the dog wears a collar? If the dog crosses the wire,
the collar gives the dog an electric shock?

I never cared for those systems. I always thought there must be a
better way of controlling your dog than giving it an electric shock.

73, Zack W9SZ


On 4/4/13, Laurence KL1 X <hellozerohellozero at hotmail.com> wrote:
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> Well interesting news from Innotek that the transmitter is set on 8.192kHz
> AM pulsing and thus what Im seeing is modulated  square wave ish harmonics
> in the LF MF and SW bands, it seems to me the easiest solution now would be
> to shove in an RF choke on each side of the loop where it comes out of the
> unit enough Z to stop my interference  at my rx freqs but negliable to VLF.
> Im not sure how its driven so may need only 1 -  Im thinking 500uH on a 77
> core (may be a lilttle high)...opening gambit. Ive gone back to Innotek and
> asked what theyve deployed before to clear up this interference as I bet Im
> not the first. Im suprised again that Ive not heard more about this type of
> QRM from this community over the years -
>
> Laurence KL 1 X
>
>
>
> From: hellozerohellozero at hotmail.com
> To: fccpart15 at earthlink.net
> Subject: RE: [Lowfer] Invisible dog fence LF and MF interference is 0.5oz of
> C4 the answer?
> Date: Wed, 3 Apr 2013 16:08:56 -0800
>
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> Lee - thanks - the unit that is causing this racket is an Innotek "Dog
> Smart" unit about 7 years old - AC walwart with AA battery back up
>
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> http://kl7uk.com/smartdog.jpghttp://kl7uk.com/underloop.jpg
>
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> Im              		 	   		   		 	   		
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