Pulse Repetition Frequency measures what?

Pulse Repetition Frequency measures what?

• A. The duration of each pulse
• B. The average power
• C. The number of pulses transmitted per second
• D. The height of the pulse

Answer: (C)

Pulse repetition frequency is the rate at which energy pulses are emitted, i.e., how many pulses are transmitted each second. This directly defines how often pulses occur. The duration of each pulse is a separate property (pulse width), so PRF isn’t about how long a pulse lasts. Average power combines both how strong each pulse is and how often pulses are sent (duty cycle = pulse duration × PRF), so PRF alone isn’t the measure of average power. The height or amplitude of the pulse describes peak strength, not how often pulses occur. In short, PRF specifically measures the number of pulses transmitted per second.

Pulse repetition frequency is the rate at which energy pulses are emitted, i.e., how many pulses are transmitted each second. This directly defines how often pulses occur. The duration of each pulse is a separate property (pulse width), so PRF isn’t about how long a pulse lasts. Average power combines both how strong each pulse is and how often pulses are sent (duty cycle = pulse duration × PRF), so PRF alone isn’t the measure of average power. The height or amplitude of the pulse describes peak strength, not how often pulses occur. In short, PRF specifically measures the number of pulses transmitted per second.