[RFI] death of plasma

Dave Cole dave at nk7z.net
Fri Aug 4 01:05:11 EDT 2017

Thanks Jim,
My hope is that we locate a place far, far from others...  In reality we 
will probably not.  Not good that the RFI is not a specular source, that 
would make cancellation simple...

73s and thanks,

On 08/03/2017 02:03 PM, Jim Brown wrote:
> On 8/3/2017 1:32 PM, Dave Cole wrote:
>> You are 100% correct, but if it is mine, I can deal with it quickly, 
>> and as I see fit.  My concern is other folks Solar stuff...  For 
>> instance, if I see a home 500 feet away from a perspective home, 
>> should I expect problems? 
> Yes. A solar array for a home about that distance from my SteppIR wipes 
> out 6M in that direction when the sun shines (raises noise floor by 10 
> dB), and makes a mess on some of the higher HF bands. I only hear it 
> when the sun is shining, which suggests that the source is the charge 
> regulator(s).
> If you search my street address on Google Earth you can see my SteppIR 
> as a small almost horizontal bar roughly 100 ft north of the house, and 
> part of the solar array at about 110 degrees az.
>> Is, so what bands?
> Depending on the system, any bands can be affected.
> BTW -- noise cancellation doesn't work on sources that are large as a 
> fraction of a wavelength, especially if the source is distributed.
> 73, Jim K9YC
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