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Frage 344

Which of the following statements is true about PSK31?

  1. Upper case letters are sent with more power
  2. Upper case letters use longer Varicode bit sequences and thus slow down transmissionRichtige Antwort
  3. Error correction is used to ensure accurate message reception
  4. Higher power is needed as compared to RTTY for similar error rates

Erklärung

PSK31 uses Varicode, which assigns the shortest bit patterns to the most frequently used characters; lower case letters are more common than upper case, so upper case codes are longer and typing in capitals lengthens the transmission.

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Frage 344: Which of the following statements is true about PSK31? · FCC General Class (Element 3) · Questena