This series of projects explore concepts of radio communications. We use LEDs to generate (very high frequency) radio waves and photo-resistors to take the place of radio antennas. These ideas are ...

If you’re looking for a simple way to make an RF transmitter, check out [Tomasz]’s Morse code transmitter. His design uses nothing more than a microcontroller and a 16MHz crystal to transmit CW Morse ...

With over 160 years of history under its belt, Morse code is by far the oldest digital signaling system known to man. Originally developed for telegraph systems, [Samuel Morse’s] code has been sent ...

Last Saturday, more than 150 listeners across the U.S., Italy, France and Japan huddled by their radios to decipher a series of Morse Code transmitted by the Maritime Radio Historical Society. MRHS ...

雅思阅读的Morse Code莫尔斯电码这一篇文章在2012年6月9日考过，下面中国教育在线为大家整理了该篇阅读的内容，一起往下看吧。 Morse Code莫尔斯电码真题回忆 Morse code ii being replaced by a new satellite-based system fo r sending distress calk at sea.Its dots and ...

How did we make our transmitter on the island? The Rough Science transmitter had the following parts: 12V car battery, Morse key switch, buzzer and transformer mounted on a wooden board and an antenna ...

Jim Charlong works his Morse code key. All photos courtesy of Parks Canada. GLACE BAY, Nova Scotia — On Dec.17, 1902, from the seaside Table Head radio station at Glace Bay, Nova Scotia, Guglielmo ...

1840: Samuel F.B. Morse receives a U.S. patent for his dot-dash telegraphy signals, known to the world as Morse code. The code Morse devised in partnership with Alfred Vail uses a system of dots and ...