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What is NTSC/PAL composite signal?

Answer

“NTSC” and “PAL” both refer to the transmission/reception method of analog color television.
NTSC system: National Television System Committee, 30 frames per second interlaced system, 525 horizontal scanning lines.Countries used: Japan, US, Canada, Latin America, etc.
PAL system…Phase Alternation Line, 25 frames per second interlace system, 625 horizontal scanning lines. Countries used: Europe, Africa, China, Australia, Brazil, etc.

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