Re: [HCDX]: AOR 7030

[Chris Mackerell <chris@xxxxxxxxxxxxx>]

Hi Patrick

Sounds like we need an electronics wizz kid to design an "electric
fence killer unit" for all the DXers :-)

I use an ANC-4 too, and it doesn't work with my troublesome electric
fence either - the signal level from the fence just isn't strong enough.

I think what we need our "wizz kid" to design is some box that
works a bit like the ANC-4, but also has a "fence signal injector" where
you can vary the strength, period and phase of the simulated fence signal
so that it either cancels out the real fence, or blanks the receiver
briefly....

Would be nice, wouldn't it? :-)

Anyone know if such a device is possible using modern RF, IF or audio 
DSP chips?

Cheers, Chris

Patrick Martin wrote:
> 
> Thanks. I use several antennas for MW DX including a 1500' Eastern
> beverage that runs near the electric fence, plus a 200' EWE antenna and
> 900" NNW  Beverage. However all my antennas run around my neighbors
> property. The ANC-4 has been useless in getting rid of the noise even
> though everyone seems to think it should work. I haven't had any luck
> with getting rid of it. The noise blanker in the R8 is pretty good, but
> it also has drawbacks. If you are close to a strong signal the blanker
> stuts itself off even though it is on. I talked to Drake about that and
> was told that Drake designed it that way not to overload. It the blanker
> had a level control it might work better.
> My thought at this time is to use some sort of an outboard blanker on
> DSP noise filter of sometime. Since the clicking is 1 sec intervals, it
> should be easy to put a hole in the audio long enough to totally blank
> the noise I would think.  This is a new fence the neighbot has put up,
> and I think the charger is fairly new also.
> Thanks again.
> 
> 73s,
> 
> Patrick
> 
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Chris Mackerell, P.O. Box 2241, Wellington 6015, New Zealand
Home Phone: +64 (4) 232-4216      Fax: +64 (4) 385-2752 
Work Phone: +64 (4) 801-6716      Cellphone: +64 (25) 321 216
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This is a message from Chris Mackerell <chris@xxxxxxxxxxxxx>
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