Morse code were also published in "QST", Another example occurred in 1966 when prisoner of war Jeremiah Denton, brought on television by his North Vietnamese captors, Morse-blinked the word "TORTURE". In these two cases, interpreters were available to understand those series of eye-blinks. International Morse code is composed of five elements: Morse code can be transmitted in a number of ways: originally as electrical pulses along a telegraph wire, but also as an audio tone, a radio signal with short and long tones, or as a mechanical, audible, or visual signal (e.g. a flashing light) using devices like an Aldis lamp or
Morse code mnemonics Morse code mnemonics Morse code mnemonics are systems to represent the sound of Morse characters in a way intended to be easy to remember. Since every one of these mnemonics requires a two-step mental translation between sound and character, none of these systems are useful for using manual Morse at practical speeds. Amateur radio clubs can provide resources to learn Morse code. Visual mnemonic charts have been devised over the ages. Baden-Powell included one in the Girl Guides handbook in 1918. Here is a more up-to-date version, ca. 1988: Other visual mnemonic systems have been created for Morse code, mapping