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Re: [RFI] Grow Lights

To: rfi@contesting.com
Subject: Re: [RFI] Grow Lights
From: Clay Autery <KY5G@montac.com>
Date: Sat, 11 Jan 2020 17:47:44 -0600
List-post: <mailto:rfi@contesting.com>
By and large.... the cannabis growers with whom I have come in contact, not only do not want to draw undue attention to their ops (even the legal guys), the VAST majority of them are nice folks who genuinely want to be helpful because it's "what you do".
______________________
Clay Autery, KY5G
(318) 518-1389

On 01/11/20 12:40, Jim McCook wrote:
Last year I had a S-9 noise problem that I tracked to a specific house 1000ft away.  It came on about sunset and went off around sunrise.  I immediately suspected a grow light, since it was in a typical residence along a busy street. The person came to the door, and I explained the problem, which devastated 40 meters.  He was more than just cooperative.  He led me to the garage and showed me the three huge switching power supplies to power several KW of lighting, obviously for growing pot.  We did some testing with my Sony ICF-2010 in hand, and quickly realized he would need to get non-switching supplies.  He was familiar with FCC part 15 rules.
He knew all about the noise problem.  He explained that pot growers 
like him have reflectors, just like this one, and they discuss the 
issue a lot.  These people normally want to be cooperative and do NOT 
want to attract attention or create enemies!  Within two days he had 
removed the old switchers and installed regular non-switching 
supplies.  Problem solved.  He was so anxious to keep me happy that he 
even offered a free massage by his girlfriend, who has a massage 
business.  That's where I drew the line.
I was left with the impression that pot growers do NOT want attention 
or enemies that create problems for them.  BTW I have used the Sony 
ICF-2010 and the Sony AN-LP1 loop that has a bandswitching preamp.  
I've used them for at least 25 years to track every imaginable type 
noise.  The biggest threats to HF are coming from homes in the form of 
DC ceiling fans, LED light switching supplies, and Solar Edge 
systems.  Not only are the Solar Edge panels a problem, but some of 
the newer inverters generate terrible "grunge" noise all across the HF 
spectrum.  SE has fixed 8 nearby systems for me so far, and two 600ft 
away remain to be fixed.  An effective FCC would eliminate importing 
and installing all SE systems until they correct their problems, but 
we know that won't happen.  Jim W6YA
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