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Вопрос 102

What is the standard sideband for JT65, JT9, FT4, or FT8 digital signal when using AFSK?

  1. LSB
  2. USBПравильный ответ
  3. DSB
  4. SSB

Объяснение

These modes are generated as audio tones fed to an SSB transmitter, and convention calls for USB on every band, including bands normally worked on LSB for voice. This keeps the transmitted frequency equal to the dial frequency plus the audio offset everywhere.

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Вопрос 102: What is the standard sideband for JT65, JT9, FT4, or FT8… · FCC General Class (Element 3) · Questena