ARLA/CLUSTER: ARRL denuncia à FCC violação das regras, por interferencias em HF, das lampadas usadas em horticultura

[João Costa > CT1FBF]

 ARRL to FCC: 'Grow Light' Ballast causes HF interference, violates rules

The ARRL has taken action over the MF and HF radio interference generated
by a *'Grow Light' Ballast* that is used by horticulturists and can also be
used for activities such as marijuana production

The ARRL say:





*The ARRL has formally complained to the FCC, contending that a “grow
light� ballast being widely marketed and sold is responsible for severe
interference to the MF and HF bands. The League urged Commission action to
halt sales of the Lumatek LK-1000 electronic ballast and to recall devices
already on store shelves or in the hands of consumers. In a March 12 letter
to the Commission’s Enforcement Bureau and its Office of Engineering and
Technology, ARRL General Counsel Chris Imlay, W3KD, said the ARRL’s own
laboratory testing revealed that the Lumatek device exhibited excessive
conducted emissions, in violation of the FCC’s rules. “ARRL has received
numerous complaints from Amateur Radio operators of significant noise in
the medium and high frequency bands between 1.8 MHz and 30 MHz from ‘grow
lights’ and other RF lighting devices generally,� Imlay told the
Commission. “The level of conducted emissions from this device 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.� An extensive Conducted
Emissions Test Report detailing the ARRL Lab’s test results was attached to
the League’s correspondence.“The Report concludes from the conducted
emissions tests that the six highest emissions from the device in the HF
band vastly exceed the quasi-peak limit specified in Section 18.307(c) of
the Rules,� Imlay related. The ARRL further pointed out that, while a FCC
sticker has been affixed to the device, it lacked FCC compliance
information. FCC Part 18 rules require RF lighting devices to provide an
advisory statement with the device, notifying users that it could interfere
with radio equipment operating between 0.45 MHz and 30 MHz.*
Read the full ARRL story at
http://www.arrl.org/news/arrl-to-fcc-grow-light-ballast-causes-hf-interference-violates-rules

ARRL complaint
http://www.arrl.org/files/media/News/Complaint20re20RF20Device.pdf

Conducted Emissions Test Report
http://www.arrl.org/files/media/News/
Lumatek20Emissions20Report20Rev%20D.pdf

Lumatek LK-1000 electronic ballast
http://www.lumatekballast.com/products/

Grow lights
http://en.wikipedia.org/wiki/Grow_light
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