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This article contains edited details of the NBSC format. These are reproduced with some corrections from a posting to the NBTVA forums.

1. Introduction
1.1. NBSC = NBTV + NTSC
2. Quick guide to NTSC
3. Splitting up the colour into components
3.1. Colour difference signals
3.2. YUV Colour difference
3.3. YIQ Colour difference
4. Modulating the colour difference signals
4.1. Quadrature Amplitude Modulation (QAM)
4.2. Demodulation
5. Problems and “dodges”
5.1. Colour patterning
5.2. Low bandwidth colour
5.3. Cross-Colour
6. Subcarrier reconstruction
6.1. Colour burst
6.2. Never Twice the Same Colour
7. NBSC Parameters
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Disclaimer: The information presented here is intended to be a brief introduction to the NTSC standard and its workings and how it can be applied to narrow bandwidth television. I'm no authority on NTSC so don't rely too heavily on facts presented here!

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