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#28
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NTSC is not capable of producing a true RGB signal ...because of the weighting of the I and Q signals but both PAL and SECAM contain the full RGB components BUT of course an NTSC style system for 625/25 could be set up to provide true RGB ....but the phase issue was seen as a major problem...
In fact NTSC has superior transmission characteristics for long distance cable/microwave transmission than either SECAM or PAL. SECAM has problems with studio production ...switching sources etc. I know the UK had a long investigation into the systems .....the BBC tested 405 line NTSC etc. Australia was similar with tests of 625 line NTSC before finally settling with PAL. Of course it is all irrelevant now....digital broadcasting is with us.
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____________________________ ........RGBRGBRGB ...colour my world |
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