Which system is designed to track and correlate radar inputs from various ranges on a monitor?

The Base Control System-Fixed (BCS-F) is specifically designed for tracking and correlating radar inputs across different ranges, presenting this information on a centralized monitor. The BCS-F integrates various sensor data, enabling operators to have a comprehensive overview of the air situation, which can be crucial for decision-making and threat assessment in air defense operations.

This integration allows for enhanced situational awareness, as operators can visualize and correlate multiple radar signals, ensuring that any potential threats are detected and evaluated promptly. The focus of the BCS-F on optimizing radar input processing and display makes it a key component in ground-based air defense systems.

While other systems listed may play critical roles in military operations, they serve different purposes. The Distributed Common Ground Station (DCGS) is more focused on data analysis and intelligence gathering rather than specifically correlating radar inputs. The National Military Command System (NMCS) focuses on command and control at a strategic level. The Strategic Automated Command and Control System (SACCS) is geared towards automating command and control functions for nuclear operations. Each of these systems has its unique function, but the BCS-F's particular emphasis on radar tracking distinguishes it as the correct answer.