I have one of the fences. The transmitter operates on about 560 khz, I
think this is standard. You should be able to tell with a portable radio.
I get some interference across the HF spectrum. If I need to quiet it down
I turn it off. Hard to do with the neighbors. Good Luck.
Tom, W1TO
Subject: TopBand: Invisible Dog Fence RFI
>Hello Topbanders,
>
>I just got my antenna up at my new QTH. I hear an interesting noise over a
>50 kHz width, with the upper limit being 1800 kHz. It pulses with a 3 sec
>on and 2 sec off cycle.
>
>I notice that the neighbor's dog has one of those Invisible Fence collars
>on. Before I fire up the PA, I am looking for more info on these invisible
>fences, which I believe must use RF signals from a perimeter wire to
>activate the shock collar. I want to know what I am talking about before I
>go ask the neighbors if their dog has been acting strange lately. I would
>hate for "poochie" to suffer.
>
>I suspect that the 1750-1800 kHz range would be a likely place to operate
>these fences. If so, is the receiver in the collar selective enough to
>keep out my signal if I fire up my kW on 1801?
>
>So, I am looking for your help with these questions:
>
>1)What is the address for the RFI reflector?
>
>2)Anyone know what frequency these invisible fences operate on?
>
>3)Anyone ever have interference probems with them?
>
>Rob K2WI
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