[K3CAL] RF Interference

[Richard Terlisner]

jim tetlow's right.  the only thing they use magnets for anymore is
attaching them to bracelets & headbands to magnetically draw the pain out
of your body from the beers after field day.

On Sat, Jan 24, 2015 at 10:48 AM, Rich Weaver <weaverr at comcast.net> wrote:

>   *Should you be eligible for this program (or not)...[image: Sad smile]*
>
>
> *Marijuana grow-lights cause problems for ham-radio operators*
>
> The marijuana industry and Uncle Sam haven't been on the same page for 80
> years, but these days, in a unique bit of weirdness, it's not the U.S.
> Department of Justice that could create a problem for pot growers: It's the
> Federal Communications Commission.
>
> The FCC regulates the country's electronic communications, which is
> relevant because it turns out that, bizarrely, light ballasts used in the
> growing of cannabis emit radio-frequency interference that screws up
> amateur-radio transmissions being sent by local ham operators, a licensed,
> legally protected practice.
>
> In a March 12 letter to the commission, the American Radio Relay League,
> the national association for amateur radio, complained that interference
> from grow lights was greatest in the medium- and high-frequency bands
> between 1.8 and 30 megahertz, and that it comes in no small amount.
>
> "The level of conducted emissions from this [Lumatek LK1000 grow light] is
> so high that, as a practical matter, one RF ballast operated in a
> residential environment would create preclusive interference to Amateur
> radio HF communications throughout entire neighborhoods," wrote general
> counsel Christopher Imlay to acting chief of the FCC Spectrum Enforcement
> Division John Poutasse in the hopes the agency would halt sales.
>
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