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Later, in the mid-1960s, Swan introduced the more full-featured models 350 and 500 transceivers. The Swan 500 was a more costly version of the 350, with higher output power and more operating features. Although they lacked the higher selectivity and tuning accuracy of higher priced transceivers, each performed solidly as a basic SSB station.
The company was founded in 1943 by radio design engineer Robert L. Drake. The company began as a manufacturer of low pass and high pass filters for the government and amateur radio market, and after World War II, produced amateur radio transmitters and receivers and communications receivers for maritime mobile service.
A solid-state battery (SSB) is an electrical battery that uses a solid electrolyte to conduct ions between the electrodes, instead of the liquid or gel polymer electrolytes found in conventional batteries. [1] Solid-state batteries theoretically offer much higher energy density than the typical lithium-ion or lithium polymer batteries. [2]
The Amazon rainforest does not provide 20% of Earth's oxygen. This is a misinterpretation of a 2010 study which found that approximately 34% of photosynthesis by terrestrial plants occurs in tropical rainforests (so the Amazon rainforest would account for approximately half of this).
The book received a strong positive review by John Updike in The New York Times, in which he said, "While not quite so sprightly as Stuart Little, and less rich in personalities and incident than Charlotte's Web – that paean to barnyard life by a city humorist turned farmer – The Trumpet of the Swan has superior qualities of its own; it is the most spacious and serene of the three, the one ...
U.S. Army and Air Force service members assisted USAID with the transportation of nearly 12,000 pounds of medical kits from the Netherlands, through Germany and on to Lebanon. Trump and DOGE are attempting to dismantle the vast majority of USAID , [ 180 ] a 10,000-person agency originally tasked to carry-out and monitor humanitarian projects by ...
After the 1973 oil crisis, the U.S. government imposed a nationwide 55 mph speed limit, and fuel shortages and rationing were widespread.Drivers (especially commercial truckers) used CB radios to locate service stations with better supplies of fuel, to notify other drivers of speed traps, and to organize blockades and convoys in a 1974 strike protesting the new speed limit and other trucking ...
The Sword and Sorceress series is a series of fantasy anthologies originally edited by American writer Marion Zimmer Bradley, and originally published by DAW Books.As she explained in the foreword to the first volume, she created the anthology to redress the lack of strong female protagonists in the subgenre of sword and sorcery.