[RFI] Another Grow Light

David Cole dave at nk7z.net
Sun Nov 9 21:32:40 EST 2014

Was the filter you offered, your design, (on your web page), or a
commercial one?
Thanks and 73's,
For equipment, and software setups and reviews see:
for MixW support see;
for Dopplergram information see:
for MM-SSTV see:

On Sun, 2014-11-09 at 14:08 -0700, Tom Thompson wrote:
> I noticed my 40m noise floor had increased slightly, and since it was a 
> nice day, I went out with my loop and noise receiver to see if I could 
> find it.  I had it located in about five minutes, when the neighbor 
> across the street, who I know and have installed filters for his 
> ballasts, came out and started talking.  I was sure I had the house 
> located properly, so I knocked on the door, explained the situation, and 
> offered them a filter.  My friend vouched for me and assured the guy 
> that I was on the level.  The grower would not admit to anything so we 
> left.  My friend questioned whether or not I had the correct house.  
> When I moved to a new location to show him, the RFI suddenly 
> disappeared.  My friend commented that I must have scared them.  We will 
> see if the RFI stays off.
> Tom   W0IVJ
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