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 ...
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|January 1952 Radio & TV News|
These articles are scanned and OCRed from old editions of the Radio & Television News magazine. Here is a list of the Radio & Television News articles I have already posted. All copyrights are hereby acknowledged.
If Radio Corporation of America (RCA) was still in existence today, undoubtedly they would be running an advertisement mentioning not just radio and television in their list of wireless communications accomplishments since Marconi's message "first forged in 1901 from the mere sound of three dots," but also cellphones, satellite navigation (GPS), cable television, and Wi-Fi. Founded in 1919, RCA was bought by General Electric in 1986 and then subsequently broken into components and sold off to other companies like Sony, NBC (National Broadcasting Company), and Comcast.
Three dots in Morse Code - sent from England and received by Marconi in Newfoundland - proved that wireless signals could span the Atlantic.
Three dots that opened a new era!
When Marconi, on December 12, 1901, heard a "3-dot" radio signal - the letter "S" in Morse Code - across 1,800 miles of sea, it was an experimental triumph that opened a new era in communications.
Before this historic event, wireless telegraphy had been limited primarily to communications between the shore and ships at sea. Marconi's success, however, was the forerunner of many other developments which led eventually to RCA world-wide radiotelegraph service that now operates more than 80 direct circuits to 66 countries.
As radio progressed, its usefulness was expanded by invention and development of the electron tube, the harnessing of short waves which made world-wide transmission a reality, and the automatic transmission and reception of messages at high speed.
Radio, with its magic of spoken words and music broadcast over the world ... television, the miracle of pictures in motion transmitted through the air ... these mediums of modem communication have added notable links in the chain of electronic advances first forged in 1901 from the mere sound of three dots.
See the latest wonders in radio, television, and electronics at RCA Exhibition Hall, 36 West 49th St., N. Y. Admission is free. Radio Corporation of America, RCA Building; Radio City, N.Y. 20, N.Y.
Today RCA Communications sends and receives about 81 million words each year across the Atlantic; the messages are automatically recorded on tape, for error-free transmission.
Posted December 27, 2015