How many intermediate frequency (IF) receivers does the AN/TPS-75 Aircraft Control and Warning System have?

The AN/TPS-75 Aircraft Control and Warning System is designed to detect and track aircraft. A key feature of this system is the number of intermediate frequency (IF) receivers it utilizes, which plays a crucial role in the processing of radar signals.

This system employs multiple IF receivers to enhance its signal processing capabilities and provide accuracy in target detection. Specifically, the use of seven intermediate frequency receivers allows for better discrimination between the desired signals and unwanted noise, which is essential in a military context where precision is critical. The design incorporates these receivers to improve the overall functionality and effectiveness of the radar system in various operational scenarios.

Thus, the correct answer accurately reflects the system's design and operational requirements, indicating a well-thought-out balance between capacity and performance in the context of military aircraft surveillance.