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Re: [RFI] Lighting grow cycle of Pot...

Subject: Re: [RFI] Lighting grow cycle of Pot...
From: "Dave Cole (NK7Z)" <dave@nk7z.net>
Date: Wed, 21 Feb 2018 16:23:46 -0800
List-post: <mailto:rfi@contesting.com>
Thanks to all for the education on pot lighting!  :)

I will be handing the grower the packet sometime this week...

Hopefully the grower will proceed in the spirit of the handout, which is friendly, firm, but not demanding. If you are interested, the full color handout in all it's beauty is located at:


at the bottom in the links section. The ARRL has a fillable form of the same text at:


but it is not as pretty as mine!  :)

I am developing a handout that can be given to all the pot shops in the area, in hopes they will pass to their growers explaining what RFI is and why they want it gone... I suspect once the growers realize it takes about 10 minutes to locate them, they will want to get on the band wagon for quietness...

I need to get it developed, then have a lawyer review it for liability issues, then redo it until the lawyer is happy... Once that is done, I will post it on line.

73s and thanks,

On 02/21/2018 04:10 PM, Bob Riese wrote:
shorter light time promotes budding


On Wed, Feb 21, 2018 at 11:40 AM, Tom Thompson <w0ivj@tomthompson.com <mailto:w0ivj@tomthompson.com>> wrote:


     From what have observed, the lights are on continually for about
    two weeks and then a 12 hours on / 12  hours off until harvest which
    can take a number of months.  Depending on the setup, the lights are
    off for a week or so while a new crop is planted, and then the cycle
    repeats.  To get the latest, just google cannabis grow cycle.  See:

    73,   Tom   W0IVJ

    On 2/21/2018 7:11 AM, Dave Cole (NK7Z) wrote:


        Can someone refresh my memory here...  I believe there is a
        cycle of light timing pot growers use on something like a 12 or
        13 weeks period where they go from 18 hours of light to 12 hours
        of light...  Does someone know what this cycle is, and why?

        I ask because my RFI has taken a turn for the worse, 12 weeks
        after it started...

        Yesterday, it changed from a 12:45 AM start time and a 6:45 PM
        end time, to a 6:45 PM  to 12:45 PM the next day end time.  This
        followed a few days of no RFI.  I suspect harvest time is upon
        the grower causing RFI, and I want to avoid handing him his
        "Welcome" packet during harvest as there will probably be lots
        of people there...

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