How can the altitude of a target be determined using an RHI scope?

Using an RHI (Range Height Indicator) scope is specifically designed for visualizing the height of targets in relation to their distance from the radar unit. The altitude of a target can be accurately determined by adjusting the movable height line or artificial target on the RHI display. This adjustment allows the operator to align the height line with the target, providing a direct measurement of the target's altitude.

When the movable height line is positioned, it corresponds to the elevation of the target above the radar. The visual representation enables operators to assess relevant altitude information easily. This method enhances precision and accuracy when gauging vertical dimensions, which is critical for various operational scenarios, such as tracking weather phenomena or aircraft.

Reading a digital display primarily offers information about target positioning, and while calculating distance can relate to altitude, it does not provide direct measurement like the adjustment on the RHI does. Sonar technology is unrelated to altitude determination via radar systems, as it operates based on sound waves in water, not electromagnetic signals in the air.