What is the THAAD radar safety keep out zone for ground equipment?

• A. 100 meters
• B. 500 meters
• C. 750 meters
• D. 1000 meters

Answer: (B)

Radar safety keep-out zones are set to protect people from the high-power emissions and any physical hazards of operating a THAAD radar. For the ground equipment, the established safe radius is 500 meters. This distance comes from safety analyses that account for transmitter power, antenna gain, radar pulse characteristics, and how exposure could accumulate, ensuring that occupational exposure remains within approved limits for nearby workers and that the surrounding public stays safe. Within this zone, access is restricted to trained personnel with proper controls; outside, standard safety practices apply. The other distances would either not reliably limit RF exposure to safe levels or would unnecessarily constrain operations and logistics.