RF Cafe Software
About RF Cafe
1996 - 2016
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 ...
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|Pi||P||3.141 592 653 589 793 238 46|
|Natural log base||e||2.718 281 828 459 045 235 36|
|Square root of 2||√2||1.414 213 562 372 095 048 80|
|Euler's constant||g||0.577 215 664 901 532 860 61|
|Golden Ratio||f||1.618 033 988 749 894 848 20|
|1º of latitude at 40º latitude||69 mi|
|Acceleration of gravity||g||32.1726 ft/s2|
|Speed of sound @ 0ºC||1087.1 ft/s|
|Water heat of fusion @ 0ºC||∆Hfus||79.71 cal/g|
|Water heat of vaporization @ 0ºC||∆Hvap||539.55 cal/g|
|Acre||43 560 ft2|