NTSC Broadcast

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NTSC Broadcast
NTSCthumb.jpg
Frequencies 54 MHz,806 MHz
Frequency Range 54 MHz - 806 MHz
Mode RAW
Modulation QAM,VSB
ACF
Bandwidth 6 MHz
Location Worldwide
Short Description National Television System Committee (NTSC) Television broadcast is an analogue television broadcast mode. Currently being phased out in parts of the world in favor of digital broadcast.
I/Q Raw Recording Download file
Audio Sample No Audio File

National Television System Committee (NTSC) Television broadcast is an analogue television broadcast mode. Currently being phased out in parts of the world in favor of digital broadcast. The successor of NTSC is ATSC.

Characteristics[edit]

NTSC a Field Rate of 59.94 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). (60Hz), 525 lines per frame, and a Gamma of 2.2.

Format[edit]

NTSC format.png


Luma: Amplitude Modulation. The amplitude denotes the brightness on each scan line.

Chroma: Used an analog QAMQuadrature Amplitude Modulation system, where the amplitude denoted the saturation of color, and the phase denoted the hue. This uses the IQQuadrature signals form the basis of complex RF signal modulation and demodulation, both in hardware and in software, as well as in complex signal analysis. (YIQ) color system.

Audio: Standard FMFrequency Modulation modulated audio, with only 25 kHzKiloHertz (kHz) 10^3 Hz bandwidth.



An example of how the signal looks to a RFRadio Frequency receiver, assuming IF bandwidth > 6 MHzMegaHertz (MHz) 10^6 Hz:

NTSC spectrum 1.gif

Frequencies[edit]

NTSC shares the same frequencies as ATSC

Decoding Software[edit]

Hobby Level Software

Video Examples[edit]

Additional Links[edit]

Additional Images[edit]