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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1756: Jacques Cassini, discoverer of the Cassini Division between the A and B rings of Saturn, died. 1775: Paul Revere began his famous ride from Charlestown to Lexington, MA, warning American colonists that the British were coming. 1838: Lecoq de Boisbaudran, discoverer of gallium, was born. 1906: San Francisco was hit by a disastrous earthquake. 1907: Denmark became the first country to use fingerprinting to identify criminals. 1923: Yankee Stadium opened. 1925: World Amateur Radio Day (WARD) established to commemorate the founding of the International Amateur Radio Union (IARU). The first U.S. commercial transcontinental radio transmission of a radio facsimile was sent from San Francisco to New York City. 1942: An air squadron from the USS Hornet led by Lt. Col. James H. Doolittle raided Tokyo and other Japanese cities. 1945: Sir John Ambrose Fleming, inventor of the diode tube (Fleming valve), died. 1955: Nobel laureate Albert Einstein, died. 1989: Thousands of Chinese students demanding democracy tried to storm Communist Party headquarters in Beijing.