In laser employment, what must PRF match?

• A. Weather conditions determine PRF
• B. PRF must match the seeker's system
• C. Target distance sets PRF
• D. Laser color sets PRF

Answer: (B)

Pulse repetition frequency is the rate at which the laser emits pulses, and the seeker’s detector is designed to respond to a specific PRF. To ensure the laser energy is properly detected, tracked, and cued by the seeking system, the laser must be configured to match the seeker's PRF. If the PRF differs, the seeker’s timing and processing may miss or misinterpret the pulses, reducing effectiveness of designation or ranging. Weather, target distance, or laser color do not determine PRF—compatibility with the seeker's system is what matters.