RF Cafe Software
About RF Cafe
1996 - 2022
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.
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1866: James Haven and Charles Hettrich of Cincinnati, OH, received the first patent for a yoyo in the U.S. 1889: Astronomer Edwin Hubbell was born. 1906: American radio pioneer Greenleaf Pickard received a patent for the first silicon crystal detector. 1923: Garrett Morgan patented an automatic traffic signal. 1924: Benoit Mandelbrot, popularize of fractal geometry, was born. 1945: The Nuremberg trials of Nazis began at the Nuremberg Palace of Justice. 1954: American aviation pioneer Clyde Cessna died. 1967: At 11 AM, the Census Clock at the Department of Commerce hit 200 million (300 million in October 2006). 1985: Microsoft released Windows version 1.0. 1991: The U.S. provided $1.5B in food and technical assistance to the Soviet Union. 1993: NAFTA was approved by the U.S. senate - that "giant sucking sound" of jobs turned out to be a "giant blowing sound" of illegals into the country. 1998: Construction of the International Space Station (ISS) began. 2000: Intel introduced its Pentium-4 microprocessor.