RF Cafe Software
About RF Cafe
1996 - 2016
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
Try Using SEARCH
to Find What You Need.
There are 1,000s of Pages Indexed on RF Cafe !
Today's Google homepage features one of their famous Doodles that honors the accomplishments of Austrian-born actress Hedy Lamarr. You might wonder why I would point this out on an engineering website. Here's why: Aside from being one of the most well-known film stars of her era, Ms. Lamarr was also an inventor and received U.S. patent number US2292387* jointly with composer/pianist Antheil George for a "Secret Communication System." We refer to her invention today as frequency-hopping spread spectrum.
Given that Google is heavily invested in spread spectrum technology and the company is staffed with some of the world's top engineers, it is no wonder the Google Doodle dedicates more than half of the presentation to Hedy Lamarr's technical accomplishments. You can watch the entire Doodle below, but here I show a few key screen cels of the story board.
Hedy Lamarr Google Doodle - November 9
* Note that the patent lists her given (born) name of Hedwig Eva Maria Kiesler.
"Fizzies" production video - Hedy Lamarr should have patented that idea, too!
Posted November 9, 2015