ATO Radar Technicians Practice Test

Question: 1 / 400

What is the definition of pulse repetition frequency (PRF)?

Time interval between receiving pulses

Number of pulses radiated in one second

The definition of pulse repetition frequency (PRF) is the number of pulses radiated in one second. This measurement is crucial in radar technology, as it determines how often a radar system sends out signals to detect objects and gather information from the environment.

A higher PRF allows for more frequent monitoring of an area, which can improve detection capabilities and reduce the chances of missing fast-moving targets. However, an increase in PRF can also affect the maximum range of the radar, as it may lead to ambiguity in distinguishing between the echoes of successive pulses.

Understanding PRF is essential for radar technicians as it directly relates to the operation and performance of radar systems, helping them optimize settings based on the specific requirements of their surveillance or tracking tasks.

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Number of echoes received per second

Frequency of the transmitted signal

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