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Color Subcarrier

The 3.58 MHz/NTSC (4.43 MHz/PAL) signal added to a black and white television signal to add color information. The subcarrier frequency is too high to be detected by black and white televisions ensuring compatibility.

The 3.58 MHz/NTSC (4.43 MHz/PAL) signal added to a black and white television signal to add color information. The subcarrier frequency is too high to be detected by black and white televisions ensuring compatibility. Color sets employ special circuitry which detects and decodes the color component for display.

The chrominance subcarrier is a separate subcarrier signal that carries the color information during transmission of a video signal. It is modulated and synchronized using the color burst signal and then attached to the back porch of the color composite video signal. By synchronizing the subcarrier with the local oscillator of the television receiver, the RGB colors can be decoded successfully.

Key Terms

color information
compatibility
definition
frequency
mhz ntsc
mhz pal
signal
usage
white television signal
white televisions

Additional Resources

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Acronymn

(none found)

Synonymns

Color Subcarrier
Chrominance subcarrier

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Sources & Credits

Last modified on August 5 2019
Content adapted from Wikipedia
No credits found.
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