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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1776: Peter Barlow, who invented the Barlow lens that is commonly used to increase optical magnification, was born. 1792: The cornerstone of the White House was laid. 1860: The first successful aerial photograph in the U.S. was taken from a balloon at 1200 feet over Boston, MA. 1916: General Motors was incorporated. 1945: Milton Hershey of chocolate fame died. 1953: The first U.S. patent for a burglar alarm operated by ultrasonic sound was issued to Samuel Bagno. 1957: Bing Crosby and Frank Sinatra introduced the Ford Edsel on an hour long special, "The Edsel Show." 1971: Alec Harley Reeves, inventor of pulse coded modulation (PCM), died. 1972: Herman A. Affel, co-inventor of coaxial cable, died. 1983: Ameritech Mobile Communications (now Cingular) launched the first U.S. cellular network in Chicago. 1985: Fermi National Accelerator Laboratory observed the first proton-antiproton collisions. 1987: Nobel Prize winner Walter Brattain, co-inventor of the transistor, died. 1992: The U.K. government announced plans to close a third of its deep coal mines.