QuestenaUn entraînement qui indique quoi revoir ensuite
Question 352

Which of the following provide digital voice modes?

  1. WSPR, MFSK16, and EasyPAL
  2. FT8, FT4, and FST4
  3. Winlink, PACTOR II, and PACTOR III
  4. DMR, D-STAR, and SystemFusionBonne réponse

Explication

DMR, D-STAR and System Fusion digitize speech through a vocoder and transmit the resulting bit stream, which makes them digital voice modes. WSPR, FT8, Winlink and the PACTOR family carry text or data rather than voice.

Continuer avec ce test

Commencer l’entraînement
Question 352: Which of the following provide digital voice modes? · FCC General Class (Element 3) · Questena