Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014
Menu below is just a small sample of what is here!
 
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

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
A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger
    KB3UON

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website