| | Suggestions for Reciprocal Links to RF Cafe | | It is a well-know fact that search engine rankings are enhanced when quality websites contain reciprocal links to each other. If I have listed your company on RF Cafe and you have not yet provided a reciprocal link, please consider using one of the following prepared links of either text or a graphic. RF Cafe does NOT purposely provide links to "keyword magnet" sites that exist purely to lure searchers onto their website with the sole purpose of flashing ads in their faces. Those site offer nothing other than a useless list of hyperlinks. Please do not even bother contacting me for a reciprocal link if you run that sort of site. Also, do not send a link request unless you actually work at the company you claim to represent; I am sick of lying website optimizers promising me a reciprocal link on their client's website and then never following through after I list them. RF Cafe returns very highly, often at the top of the list on page one, for many key engineering and scientific keyword searches, and is regarded as a "high quality website" amongst search engines. Having your website linked to from RF Cafe is a definite asset for you that I am happy to provide, since I personally control every listing. Many requests have been rejected over the years either because they applicant's website is not of the quality that RF Cafe visitors need to be exposed to, or because they are simply not relevant. I'm watching your back! Thank-you. - Kirt Blattenberger | The easy way to use one of the images is to just place your cursor over it, right-click and do "Copy," then simply paste it into your HTML page. The hyperlink, image, and mouse-over description will all paste in automatically. | 
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Happy Birthday Guglielmo Marconi
April 25, 1874 | 
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Happy Birthday Johann Carl Friedrich Gauss
April 30, 1777 | 
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Happy Birthday Jean-Baptiste Biot (Biot-Savart Law)
April 21, 1774 | 
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Tax Day in the U.S.A.
April 15 | 
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Sir Robert Watson-Watt, "Father of Radar," Born.
April 13, 1892 | 
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1st Flight of the Space Shuttle - Columbia
April 12, 1981 | 
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Pearl Harbor
December 7, 1941 | 
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St. Patrick's Day
March 17 | 
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Valentine's Day
February 14 | 
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Hanukkah
25th day of Kislev (late November to December) | 
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Daylight Saving Time
Begins 2nd Sunday in March
Ends 1st Sunday in November | 
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Vernal Equinox (1st day of spring) | 
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Summer Solstice (1st day of summer) | 
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Autumnal Equinox (1st day of Autumn/Fall) | 
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Winter Solstice (1st day of winter) | 
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World's First Cellphone Call Made
on a Motorola DynaTAC
April 3, 1973 | 
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Jean Baptiste Joseph Fourier's Birthday
March 21, 1768 | 
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Gustav Kirchhoff's Birthday
March 12, 1824 | 
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Jules A. Lissajous' Birthday
March 4, 1822 | 
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"His Master's Voice" Trademarked
February 24, 1925 | 
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National Code Talker's Day
August 14 | 
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Canada Day
July 1 | 
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Mother's Day
2nd Sunday in May | 
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Sputnik Launched
October 4, 1957 | 
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Swallows Return to San Juan Capistrano
March 19 | 
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9-11 Heroes Medal of Valor
September 11, 2001 | 
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Selma-to-Montgomery Freedom March
March 7, 1965 | 
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Memorial Day
Last Monday in May | 
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New Year's Day
January 1 | 
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Battle of the Bulge
December 16, 1944 | 
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Anniversary of Powered Flight
December 17, 1903 | 
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Independence Day
July 4, 1776 | 
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Happy Easter
March-April (variable) | 
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Happy Birthday Peanuts!
November 2, 1950 | 
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Happy Thanksgiving
4th Thursday in November | 
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Merry Christmas! Joyeux Noël!
Frohe Weihnachten! Buon Natale! Feliz Navidad!
веселое рождество! Καλά Χριστούγεννα!
メリークリスマス! 圣诞快乐! عيد ميلاد سعيد!
December 25 | 
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April Fool's Day
April 1
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Retro Logo
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National Engineer's Week 2008
February 19, 2008
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National Engineer's Week 2007
February 18, 2007
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Samuel Morse's Birthday
April 27, 1791
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Flag Day
June 14
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Happy Father's Day
3rd Sunday in June
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The Dog Days of Summer Begin
July 3 to August 11
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D-Day
June 6, 1944
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Hindenburg Disaster
May 6, 1937
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The Day of Trinity
July 16, 1945
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Treaty of Versailles Signed
June 28, 1919
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National Engineer's Week
February (variable)
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National Engineer's Week
February (variable)
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| TEXT LINKS | | RF Cafe | | RF Cafe - Extensive resource for science and engineering. | | RF Cafe - An extensive resource for RF, wireless, and all aspects of science and engineering. | | RF Cafe - RF Cafe is a unique portal of RF, microwave, wireless, and other engineering resources. Vast collection of equations, references and conversions for electrical, mechanical, physical, and mathematical fields. Links for vendors, app notes, test notes, ham radio, magazines, books, active forums, patent and communications standards, technical crossword puzzles, quizzes, and much more. | | RF Cafe - RF Cafe is a unique portal for RF and microwave engineering resources. There you will find a vast collection of original content with definitions, equations, references and conversions that cover electrical, mechanical, physical, chemical and mathematical fields. Many interactive calculators are available for everything from filters to voltage dividers. In addition, you will find extensive links to other websites for vendor parts, application notes, test notes, amateur radio information, technical magazines and books, patent and communications standards, and much more. What makes RF Cafe so attractive is the daily headlines, the daily historical events list, and even technology-themed crossword puzzles that you will find nowhere else. The Factoids are always an interesting read, no matter what the subject (always relevant), and some of the Notable Quotes are hilarious. There is always a plethora of new material added, and is highlighted in the Recent Additions list. Even occasional humor items are thrown in to add some levity to the workday. For the job seeker or the employer seeking applicants, the RF Cafe Job Board provides a very focused, popular and professional venue for posting and searching resumes. Kirt Blattenberger is a degreed RF engineer who runs RF Cafe with a degree of passion not apparent in the other top “professional” websites. Many people have been surprised to learn that RF Cafe is not maintained with a full staff of editors and web designers, but it is not. | 
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Edison General Electric Company Founded
April 24, 1889
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Happy Birthday, Melanie!
April 19, 19-something
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Paul Revere's Midnight Ride
April 18, 1775
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Harriet Quimby Crosses the English Channel Solo
April 16, 1912
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James Smith McDonnell's Birthday
April 9, 1899
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Wilhelm Röntgen's Birthday
March 27, 1845
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Georg Simon Ohm's Birthday
March 16, 1789
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Joseph von Fraunhofer's Birthday
March 6, 1787
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National Bureau of Standards (now NIST) Created
March 3, 1901
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Sir Robert Watson-Watt Introduced RADAR
February 26, 1935
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Ludwig Boltzmann's Birthday
February 20, 1844
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Svante Arrhenius' Birthday
February 19, 1859
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Heinrich Lenz's Birthday
February 13, 1946
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Heinrich Lenz's Birthday
February 12, 1804
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Thomas Alva Edison's Birthday
February 11, 1847
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Super Bowl XLII
February 3, 2008
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Groundhog Day
February 2
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Space Shuttle Challenger Explosion
January 28, 1986
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Edison's Incandescent Bulb Patented
January 27, 1880
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AT&T Transcontinental Telephone Line Inaugurated
January 25, 1915
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Uranium Atom 1st Split
January 22, 1939
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André-Marie Ampère's Birthday
January 20, 1775
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Edwin "Buzz" Aldrin's Birthday
January 20, 1930
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James Watt's Birthday
January 19, 1736
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Ray Dolby's Birthday
January 18, 1933
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Lee de Forest Receives Patent for Triode Tube
January 15, 1907
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Last Calvin and Hobbes comic strip...
Please come back!
December 31, 1995
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Robert Van de Graaff
Born December 20, 1901
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Edwin Armstrong - Invented frequency modulation, superheterodyne
& regenerative receivers
Born December 18, 1890
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Marconi sent 1st transatlantic radio message
dit, dit, dit (•••, the letter "s")
December 12, 1901
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Coaxial Cable Patent Day
December 8, 1931
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Veteran's Day - Honoring All Who Served
November 11
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1st engineering college in U.S. - Rensselaer (RPI)
November 5, 1824
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Spruce Goose's 1st and only flight
November 2, 1947
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1st Message Sent via the ARPANET
October 29, 1969
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Mole Day - 6:02 am to 6:02 pm on 10/23
October 23
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Chuck Yeager Breaks the Sound Barrier
October 14, 1947
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Columbus Day
2nd Monday in October
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Beware the Ides of March
March 15
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Iwo Jima Flag Raising
February 23, 1945
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V-E Day (Victory in Europe)
May 8, 1945
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V-J Day (Victory Over Japan)
August 14, 1945
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International Pi (p) Day
March 14 (at 1:59:26 o'clock - 3.1415926)
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