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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1844: Henry John Heinz, founder of the J.H. Heinz Company and originator of the "57 Varieties" slogan, was born. 1887: A patent for the first keypad adding machine, the "Macaroni box" Comptometer, was granted to Dorr Felt. 1889: James Joule, discoverer of the current/resistance/heat relationship and after whom the unit of energy is named, died. 1958: Lunar probe Pioneer 1 was launched; it failed to go as far out as planned, fell back to Earth, and burned up in the atmosphere. 1974: U.S. Energy Reorganizing Act abolished the Atomic Energy Commission (AEC) and created both the Nuclear Regulatory Commission (NRC) and the Energy Research and Development Administration (ERDA - now the DoE). 1983: The last hand-cranked (magneto) telephones in the U.S. went out of service as 440 telephone customers in Bryant Pond, ME, were switched to direct-dial service. 1984: Space Shuttle "Challenger" astronaut Kathy Sullivan became the first American woman to walk in space. 1994: NASA's Magellan spacecraft made a dramatic conclusion to its highly successful mission at Venus when it is commanded to plunge into the planet's dense atmosphere.