Electronics World Cover,TOC,and list of posted Popular Electronics articles QST Radio & TV News Radio-Craft Radio-Electronics Short Wave Craft Wireless World About RF Cafe RF Cafe Homepage RF Cafe in Morse Code Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Manufacturers & Services Consultants Engineer Jobs Twitter LinkedIn Advertise on RF Cafe! Engineering Books Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar Day in History RF Engineering Quizzes AN/MPN-14 Radar 5CCG Notable Quotes App Notes Bookstore Calculators Education Engineering Organizations Magazines Software,T-Shirts,Coffee Mugs Articles - submitted by RF Cafe visitors Simulators Technical Writings Advertisers Websites RF Cafe Archives Test Notes Slide Rules RF Cascade Workbook RF Stencils for Visio Shapes for Word Thank you for visiting RF Cafe!

RF Cafe Software

RF Cascade Worbook
 RF Cascade Workbook 2005 - RF Cafe
Calculator Workbook
RF Workbench
Smith Chartâ„¢ for Visio
Smith Chartâ„¢ for Excel
RF & EE Symbols Word
RF Stencils for Visio

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger
BSEE
KB3UON
EIEIO

Carpe Diem!
(Seize the Day!)

5th MOB:
My USAF radar shop

Airplanes and Rockets:
My personal hobby website

Equine Kingdom:
My daughter Sally's horse riding website

A Little Light Humor

Lumatek LK-1000 electronic ballastRF Cafe visitors are amongst the most intelligent and most clever folks on the World Wide Web. I receive many e-mails, and an occasional phone call, from people in response to items I post on the website. Whenever appropriate, I ask permission to use it for content, with an offer to give full credit and attribution for the idea. I have been surprised at how often the person prefers to keep the communications private, which I always honor. That's too bad because, believe me, you have missed out on some really good insider information over the years.

Yesterday, March 17, 2014 (St. Patrick's Day, don't 'ya know), I posted a headline from the Amateur Radio Relay League website, "ARRL to FCC: 'Grow Light' Ballast Causes HF Interference, Violates Rules." The ARRL urged the FCC 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. "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."

Upon seeing the headline, Mr. Harold Kravatsky wittily remarked to me, "Look on the positive side. If a modulator is added to the ballast it can be used as a community broadcasting station. The receivers don't even have to be tuned. Any frequency will work." It is the essence of ultrawideband (UWB) communications! Thanks, Harold!






Posted  March 6, 2014

Try Using SEARCH to Find What You Need.  >10,000 Pages Indexed on RF Cafe !

Copyright 1996 - 2016
Webmaster:  Kirt Blattenberger, BSEE - KB3UON
Family Websites:  Airplanes and Rockets | Equine Kingdom

All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.