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Pregunta 347

How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

  1. Dot and dash
  2. On and off
  3. High and low
  4. Mark and spaceRespuesta correcta

Explicación

The two FSK signaling frequencies are called mark and space, terms inherited from landline telegraphy. Dot and dash belong to Morse code and on and off to on-off keying.

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Pregunta 347: How are the two separate frequencies of a Frequency Shift… · FCC General Class (Element 3) · Questena