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Question 350

Which of the following describes a waterfall display?

  1. Frequency is horizontal, signal strength is vertical, time is intensity
  2. Frequency is vertical, signal strength is intensity, time is horizontal
  3. Frequency is horizontal, signal strength is intensity, time is verticalBonne réponse
  4. Frequency is vertical, signal strength is horizontal, time is intensity

Explication

On a waterfall, frequency runs across the screen, brightness or color shows signal strength, and the display scrolls with time, so a steady carrier draws a vertical line that moves down the screen.

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Question 350: Which of the following describes a waterfall display? · FCC General Class (Element 3) · Questena