What is the difference between NTSC 3.58 and NTSC 4.43?

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The NTSC 3.58 is pure US and Japan TV system. NTSC 4.43 is used on PAL video recorders which can play NTSC on PAL and allow reproduction of American video tape on PAL TV.

NTSC 4.43 is also known as NTSC-J. It is a “PAL-type” NTSC in that it uses the same sub-carrier color frequency as PAL (in comparison to o NTSC-J (4.43) is used only in Japan. NTSC-M (3.58) is used elsewhere in other NTSC countries.

NTSC-J looks slightly better than ordinary NTSC because it has a better signal/noise ratio ordinary NTSC which uses 3.58 MHz as its subcarrier).

Although NTSC 4.43 uses PAL’s color subcarrier frequency of 4.433618 mHz, the chroma is still encoded as an NTSC signal. Thus although it uses PAL’s subcarrier, tapes recorded in NTSC 4.43 will not display on a standard PAL monitor or play in a standard PAL VCR.

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