RF Cafe Software

RF Cascade Workbook 2005 - RF Cafe
RF Cascade Workbook

Calculator Workbook
RF Workbench
Smith Chartâ„¢ for Visio
Smith Chartâ„¢ for Excel
RF & EE Symbols Word
RF Stencils for Visio

About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2016
Webmaster:
Kirt Blattenberger,
 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.

My Hobby Website:
 AirplanesAndRockets.com

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Electronics World Cover,TOC,and list of posted Popular Electronics articles QST Radio & TV News Radio-Craft Radio-Electronics Short Wave Craft Wireless World About RF Cafe RF Cafe Homepage RF Cafe in Morse Code Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs Twitter LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes AN/MPN-14 Radar 5CCG Notable Quotes App Notes Calculators Education Magazines Software,T-Shirts,Coffee Mugs Articles - submitted by RF Cafe visitors Simulators Technical Writings RF Cafe Archives Test Notes RF Cascade Workbook RF Stencils for Visio Shapes for Word Thank you for visiting RF Cafe!

Day in Engineering History Archive - September 7

September 7

Happy Birthday David Packard! - Please click here to visit RF Cafe.1813: "Uncle Sam" was first used by Troy Post to refer to the U.S. 1912: Electrical engineer and entrepreneur David Packard, who co-founded the Hewlett-Packard Company, was born. 1914: American physicist James Van Allen, discoverer of the Van Allen radiation belts, was born. 1915: Kiyoshi Ito, a mathematician whose innovative models of random motion are used today in fields as diverse as finance and biology, was born. 1927: American television pioneer Philo Farnsworth, at age 21, transmitted the first image through purely electronic means by his "image dissector" invention. 1936: The Boulder Dam (now Hoover Dam) began operation. 1940: German Luftwaffe began a 57-night blitz on London. 1948: Louis Parker was issued a patent for his "intercarrier sound system" TV receiver, used still in modern TVs. 1963: The National Professional Football Hall of Fame was dedicated in Canton, Ohio. 1977: Jimmy Carter signed a treaty transferring control of Panama Canal on 12/31/1999. 1980: American chemist Willard Libby, who won the Nobel Prize for his development of carbon-14 dating, died. 1987: An agreement was signed in Copenhagen by 15 telecommunications operators from 13 countries that led to the development of the Global System for Mobile Communications (GSM). 1991: Edwin McMillan, who discovered neptunium and plutonium, died.

| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |

Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in this article, there is a lot of wrong information that is repeated hundreds of times because most websites do not validate with authoritative sources. On RF Cafe, events with hyperlinks have been verified.
Please submit significant historical events and dates for inclusion in these lists. I will be glad to include your name and birthday. Please do not submit your death date ;-) A couple years ago, I began commemorating the birthdays of notable people and events with special RF Cafe logos. Where available, I like to use images from postage stamps from the country where the person or event occurred.