What type of cathode ray tube (CRT) is mostly used in ground radar equipment?

The correct answer pertains to the type of cathode ray tube (CRT) that is primarily utilized in ground radar equipment. Ground radar systems require specific display capabilities that can effectively visualize varying distances and targets on the screen. The electromagnetic CRT type offers enhanced performance for radar applications because it is specifically designed to handle high-speed signals and provide a clear representation of moving targets.

Electromagnetic CRTs can efficiently process and display radar signals, making them suitable for real-time analysis and interpretation, which is essential in radar operations. The use of electromagnetic techniques in CRTs ensures that the displayed images are precise and can vary dynamically according to radar inputs.

In contrast, options like C-scan and raster beam CRTs are typically used for different applications, such as medical imaging or conventional television display technology, respectively. These types may not offer the responsiveness and specificity needed for radar detection and tracking tasks.