Which of the following describes a waterfall display?
Frequency is horizontal, signal strength is vertical, time is intensity
Frequency is vertical, signal strength is intensity, time is horizontal
Frequency is horizontal, signal strength is intensity, time is vertical✓Правильный ответ
Frequency is vertical, signal strength is horizontal, time is intensity
Объяснение
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.