What frame rate does the NTSC standard use for TV broadcasting?

The NTSC standard utilizes a frame rate of 29.97 frames per second (fps) for broadcasting television. This specific frame rate originates from the transition from black-and-white to color television, where it was necessary to avoid interference with the existing black-and-white system. Additionally, this frame rate is specifically designed to enable smooth motion and avoid flickering on TV screens.

Furthermore, the NTSC standard also operates at a field rate of 59.94 fields per second, which is directly derived from the frame rate, as interlaced scanning is employed in NTSC systems. This means that each frame is split into two fields, allowing for a smooth visual experience on the television.

The other frame rates mentioned, such as 25 fps or 50 fps, are typically associated with the PAL and SECAM television standards used in other regions around the world. Similarly, 24 fps is a standard used primarily in film production, while 30 fps is more common in various video formats outside of NTSC. The choice of 29.97 fps for NTSC is thus significant for its historical and technical importance in television broadcasting in the United States and some other countries.