What is the frequency range of the Precision Approach Radar (PAR)?

The frequency range of the Precision Approach Radar (PAR) is indeed 9.0 - 9.2 GHz. This specific frequency allocation is chosen to optimize the radar's ability to provide precise approach and landing information to aircraft. The frequencies in this range allow for effective target detection and tracking, essential for maintaining safe distances between aircraft and the ground during approach.

Using this frequency band helps minimize the impacts of atmospheric attenuation and interference while maximizing resolution, which is crucial for the accurate guidance required during the critical phases of flight. This radar technology effectively supports air traffic control in managing landings and ensuring safe operations at airports.

The other choices either fall below or above the designated frequency range for PAR and do not provide the necessary performance characteristics expected from such systems.