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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1630: German astronomer
Johannes Kepler, who formulated the three major laws of planetary
motion, died. 1806: Explorer Zebulon Pike sighted the mountaintop
in Colorado now known as "Pikes
Peak." 1887: German scientist Carl Gassner was issued a patent
for the first "galvanic
battery," or dry cell, which used zinc as its primary
ingredient. 1819: Scottish chemist
Daniel Rutherford, who discovered nitrogen, died. 1904: Patent
was granted to King Gillette for the safety razor. 1965: American
Allen Du Mont, who invented the first commercial cathode ray
tube, died. 1971: Intel announced its first user-programmable microprocessor,
4004, in a edition of Electronic News magazine. 1988: The Soviet
Union launched its first space shuttle,
Buran ("Snowstorm"), unmanned, on its first and only orbital
flight. 2000: The
Southern Cross broadband cable went into service, connecting
Australia, New Zealand, Fiji, Hawaii and the U.S. west coast over
a distance of 30,500 km.