A color-television format having 525 scan lines, a field frequency of 60 Hz, a broadcast bandwidth of 4 MHz, a line frequency of 15.75 KHz, a frame frequency of 1/30 of a second, and a color subcarrier frequency of 3.58 MHz. See also PAL format and SECAM.

(National Television Systems Committee). The standard television format (signal specifications) arrived at by this committee and the Federal Communications Commission to guide manufacturers and broadcasters so that all products in this country would be compatible, whether the signal was black and white or color. This system has 525 horizontal scan lines with 30 frames per second, commonly used in the United States and Japan. Some of the other formats of the world include PAL, CCIR, and SECAM.

National Television Standards Committee. A committee of the Electronics Industries Association (EIA) that prepared the standard of specifications for commercial color broadcasting, which was approved by the Federal Communications Commission (FCC) in December 1953. NTSC is the TV standard for the U.S., Japan, and other countries. See also PAL format, SECAM format.