[RFI] Grow-light..

[Hare, Ed W1RFI]

The ones we have tested (3 so far...) were well above the FCC limits in the AM broadcast band, so you can even show this to a farmer, if you feel comfortable doing so.

Ed


-----Original Message-----
From: RFI [mailto:rfi-bounces at contesting.com] On Behalf Of Gary
Sent: Friday, March 28, 2014 1:27 PM
To: rfi at contesting.com
Subject: Re: [RFI] Grow-light..

Does the noise interfere with a broadcast AM radio? I have found people to be way more empathetic to that as opposed to ham radio.....
 
> Date: Fri, 28 Mar 2014 11:18:04 -0600
> From: w0mu at w0mu.com
> To: rfi at contesting.com
> Subject: Re: [RFI] Grow-light..
> 
> If the lights are on a timer it could be the timer, not the lights.  
> Are you convinced that the noise is in the home?
> 
> Without going back in the thread, since you probably don't need to 
> worry about a grow operation, how about approaching them nicely and 
> talking to them?  This noise could be causing other problems for them 
> and they could be happy to have some help.
> 
> The noise could also be some problem with their electrical system 
> which could be very dangerous?  Who knows.
> 
> Good luck!
> 
> Mike W0MU
> 
> On 3/28/2014 10:34 AM, Kenneth G. Gordon wrote:
> > On 28 Mar 2014 at 16:04, mstangelo at comcast.net wrote:
> >
> >> Ken,
> >>
> >> Since you can see the lights does the RFI stop when they are turned off?
> >>
> >> Mike N2MS
> > No.
> >
> > Yesterday, I went up to the house, all the residents being at work, 
> > and walked up to within 5 feet of the lights. They are 4 regular 4' 
> > long flourescent tubes in a single fixture hanging over a long tray 
> > of various what look like tomato seedlings.
> >
> > I took along a portable communications receiver which I had tuned to 
> > the frequency in the 80 meter band where I find the peak of the 
> > noise. I listened with the BFO both on and off and in AM. As I 
> > approached the lights, the noise did not change nor become stronger nor weaker.
> >
> > Those lights are NOT the source of "my" noise.
> >
> > My next step is to drop back to less sophisticated equipment, one of 
> > Tom's unshielded loops and the FT-890, and to go on a more thorough, 
> > more time consuming hunt.
> >
> > So far, from the discussion on this forum, I am convinced that "my" 
> > noise is definitely "grow-light" related, and what ever it is, it is 
> > very strong, and most probably not immediately near by.
> >
> > I am getting both more frustrated, and even more ticked off by this 
> > garbage...which appears to be getting slowly worse as time goes by.
> >
> > Again, thank you all for the very good advice and suggestions.
> >
> > vy 73,
> >
> > Ken W7EKB
> > _______________________________________________
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> > RFI at contesting.com
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> 
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