RST Code - Tone

Tone

The T stands for "Tone". Tone is used only used in Morse code and digital transmissions and is therefore omitted during voice operations. With modern transmitter technology, imperfections in the quality of the transmitter modulation that can be detected by humans are rare. Tone is measured on a scale of 1 to 9.

  1. Sixty cycle a.c or less, very rough and broad
  2. Very rough a.c., very harsh and broad
  3. Rough a.c. tone, rectified but not filtered
  4. Rough note, some trace of filtering
  5. Filtered rectified a.c. but strongly ripple-modulated
  6. Filtered tone, definite trace of ripple modulation
  7. Near pure tone, trace of ripple modulation
  8. Near perfect tone, slight trace of modulation
  9. Perfect tone, no trace of ripple or modulation of any kind

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Famous quotes containing the word tone:

    “We often contradict an opinion when it is actually only the tone with which it was put forward that is uncongenial to us.”
    —Friedrich Nietzsche (1844–1900)

    “Self-confidence is apt to address itself to an imaginary dullness in others; as people who are well off speak in a cajoling tone to the poor.”
    —George Eliot [Mary Ann (or Marian)

    “It makes me hate accepting things that are probable when they are held up before me as infallibly true. I prefer these words which tone down and modify the hastiness of our propositions: “Perhaps, In some sort, Some, They say, I think,” and the like.”
    —Michel de Montaigne (1533–1592)