What is the function of the video card in a radar technician's setup?

The video card plays a crucial role in the radar technician's setup by mixing and amplifying all video signals that are then applied to the CRT (cathode ray tube). This process is essential for displaying the radar information in a clear visual format, allowing the technician to interpret the data effectively. The video card ensures that the signals are processed correctly, providing high-quality visuals that represent the radar's readings accurately.

This function is vital because radar systems rely on visual representation to assist in monitoring and analyzing the signals received. The quality of these video signals directly impacts the technician's ability to make informed decisions based on radar data. By ensuring the signals are adequately mixed and amplified, the video card enhances the overall performance of the radar system.