The A3A1 card produces trigger pulses at PRFs of 600, 700, 800, or 1000 Hz. Which option shows these PRFs?

The A3A1 card produces trigger pulses at PRFs of 600, 700, 800, or 1000 Hz. Which option shows these PRFs?

• A. 300, 500, 900, 1100 Hz
• B. 600, 700, 800, 1000 Hz
• C. 200, 400, 600, 800 Hz
• D. 750, 850, 950, 1050 Hz

Answer: (B)

PRF is how many pulses the radar emits each second, measured in hertz. The A3A1 card uses four trigger-pulse rates: 600 Hz, 700 Hz, 800 Hz, and 1000 Hz. The option that lists exactly those four values matches the given PRFs, so it is the correct one. Other options include frequencies not in that set, so they don’t fit.

PRF is how many pulses the radar emits each second, measured in hertz. The A3A1 card uses four trigger-pulse rates: 600 Hz, 700 Hz, 800 Hz, and 1000 Hz. The option that lists exactly those four values matches the given PRFs, so it is the correct one. Other options include frequencies not in that set, so they don’t fit.