Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid between stations. In addition to helping invent the telegraph, Samuel Morse developed a code (bearing his name) that assigned a set of dots and dashes to each letter of the English alphabet and allowed for the simple transmission of complex messages across telegraph lines. In 1844, Morse sent his first telegraph message, from Washington, D.C., to Baltimore, Maryland; by 1866, a telegraph line had been laid across the Atlantic Ocean from the U.S. to Europe. Although the telegraph had fallen out of widespread use by the start of the 21st century, replaced by the telephone, fax machine and Internet, it laid the groundwork for the communications revolution that led to those later innovations.
JH1CBX Masaco introduces AH-705 designed for IC-705. Descriptions ・Covers the 1.8 MHz to 50 MHz bands 30 m, 98.4 ft or longer antenna: 1.8 – 54 MHz, 7... Read more
The ARRL Foundation Board of Directors has selected Ellwood “Woody” Brem, K3YV, of Spring Mills, Pennsylvania, as the winner of the 2020 Bill Orr, W6S... Read more
“In this video is almost all the Rigexpert antenna analyzers, thanks to GigaParts.com for letting me borrow them all. I will be making some vide... Read more
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Win4IcomSuite is a windows control program for the Icom IC-7100, IC-7300, IC-7600, IC-7610, IC-7700, IC-7800, IC-7850/51 and IC-9700 transceivers sup... Read more
“I typically paper log my Parks on the Air contacts during an activation. After I get home I will transcribe and edit the log with Fast Log Entr... Read more