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Morse Code

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Morse code is a type of character encoding that transmits telegraphic information using rhythm . Morse code uses a standardized sequence of short and long elements to represent the letters, numerals , punctuation and special characters of a given message. The short and long elements can be formed by sounds , marks, or pulses , in on off keying and are commonly known as "dots" and "dashes" or "dits" and "dahs". The speed of Morse code is measured in words per minute (WPM) or characters per minute. Originally created for Samuel F. B. Morse 's electric telegraph in the early 1840s, Morse code was also extensively used for early radio communication beginning in the 1890s. In the early part of the twentieth century, the majority of high-speed international communication was conducted in Morse code, using telegraph lines, undersea cables, and radio circuits. However, the variable length of the Morse characters made it hard to adapt to auto...
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How Ham Radio Works

A teen in Florida makes friends over the airwaves with a ham in Germany. An aircraft engineer in Washington participates in an annual contest and exchanges call signs with hams in 100 countries during a single weekend. In North Carolina, volunteers pass health and welfare messages in the aftermath of a hurricane. This mix of fun, public service, friendship and convenience is the main feature of amateur radio. The true origin of the term "ham" seems to have been lost, but there are several theories. It may simply be a shortcut way of saying the first syllable of amateur radio, or it may have originally been used as an insult. Hams start out in amateur radio for many reasons, but they all have in common a basic knowledge of radio technology, regulations and operating principles. Ham radio can be very portable and affordable. In this article, we will look at ham radio and show you how to get started in this wireless world!
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