For a range of 5 nautical miles, the RADAR pulse repetition frequency should be?

The correct answer is based on the relationship between radar pulse repetition frequency (PRF) and the maximum range at which a target can be detected. The pulse repetition frequency is the rate at which radar pulses are emitted, and it plays a critical role in determining the effectiveness of the radar system over a specified range.

For radar systems, to ensure accurate detection and processing of targets, the PRF needs to be appropriate for the range being monitored. When considering a range of 5 nautical miles, the return time for a radar signal to travel to the target and back (also known as the round trip time) must be accounted for. The pulse repetition frequency must be high enough to allow for sufficient time between pulse emissions so that the radar can receive all echoes from targets before transmitting the next pulse.

A pulse repetition frequency of 16.2 kHz or less ensures that the radar system can adequately process the returning signals from targets that are 5 nautical miles away. Specifically, this frequency provides a balance that allows the radar to send and receive pulses without creating ambiguity in determining target distance or speed.

Pulses emitted at a frequency higher than this could result in overlapping returns, making it difficult for the radar to distinguish between different signals. Furthermore, by