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Frage 84

How is color information sent in analog SSTV?

  1. Color lines are sent sequentiallyRichtige Antwort
  2. Color information is sent on a 2.8 kHz subcarrier
  3. Color is sent in a color burst at the end of each line
  4. Color is amplitude modulated on the frequency modulated intensity signal

Erklärung

Analog SSTV has no colour subcarrier and no colour burst; instead the separate colour components of each picture line are sent one after another as their own scan lines, and the receiving software reassembles them. Any colour information carried on a subcarrier would not fit in the narrow audio channel SSTV uses.

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Frage 84: How is color information sent in analog SSTV? · FCC Amateur Extra Class (Element 4) · Questena