Over The Horizon Radar System

Over The Horizon Radar (OTHR) systems are a type of radar equipment that falls under the supply class of Radar Equipment, Except Airborne, in the supply group of Communication, Detection, And Coherent Radiation Equipment.

OTHR systems are designed to detect and track targets beyond the line of sight, typically over long distances. Unlike traditional radar systems that operate in the line-of-sight range, OTHR systems use the ionosphere to reflect and refract radio waves, allowing them to detect targets over the horizon.

These systems work by transmitting a high-frequency radio signal towards the ionosphere. The ionosphere acts as a mirror, reflecting the signal back towards the Earth's surface. The OTHR system then receives the reflected signal and analyzes it to determine the location, speed, and other characteristics of the detected targets.

OTHR systems have several advantages over traditional radar systems. They can cover large areas, making them suitable for long-range surveillance and monitoring. They are also less affected by terrain and weather conditions, as the ionosphere can reflect signals over obstacles and through atmospheric disturbances.

These systems are commonly used for various applications, including maritime surveillance, border security, and early warning systems. They can detect and track ships, aircraft, and other objects over vast distances, providing valuable information for situational awareness and decision-making.

In summary, Over The Horizon Radar systems are a type of radar equipment that uses the ionosphere to detect and track targets beyond the line of sight. They are part of the Radar Equipment, Except Airborne supply class in the Communication, Detection, And Coherent Radiation Equipment supply group.