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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July 1936 Radio-Craft[Table of Contents]
People old and young enjoy waxing nostalgic about and learning some of the history of early electronics. Radio-Craft was published from 1929 through 1953. All copyrights are hereby acknowledged. See all articles from Radio-Craft.
Today is the 78th anniversary of the Hindenburg disaster at the Naval Air Station in Lakehurst, New Jersey. It is the RF Cafe logo theme for today (see upper left page corner). Ironically, last night while looking through the July 1936 edition of Radio-Craft magazine, I saw this news article reporting on preparations being made in the onboard radio and direction finding equipment for Hindenburg's maiden voyage from its home base in Frankfurt, Germany to North America. No one at the time of this article suspected such a terrible fate was looming les than a year later. Theories abound regarding the cause of the fatal fire, but there is no doubt that a combination of highly flammable hydrogen gas and an also highly flammable graphite dope (used to make it conductive and lightning impervious) impregnated cloth envelope was responsible for the incredibly rapid consumption of the craft by flames. The stigma left on airships due to the Hindenburg inferno prevents to this day the successful use of the vessels for passenger transport, even though modern methods and materials would make them very safe and enjoyable.
With the announcement last month that 2 sister-ships to the huge Hindenburg have been started in a concerted effort by Germany to absorb the transatlantic air travel - as well as the completion of plans for the first crossing of the Hindenburg, much interest has been given to the radio equipment.
This installation which rivals the equipment on many of the finest liners will permit passengers to "phone" to London, Paris, Berlin, Rio de Janeiro, New York or Buenos Aires while cruising over any point of the Atlantic!
This airship carries a 200-watt short-wave transmitter with a frequency range of 4,280 to 17,700 kc. (17 to 70 meters). In addition to the short-wave equipment, the airship carries a 125-watt long-wave transmitter covering the wavelengths from 575 to 2,700 meters.
The ship also carries complete direction finding equipment to assist in navigating through fog and blind landing devices.
Posted May 6, 2015