Umatic variants

[DVtyro]

Originally Posted by old_tv_nut

It means the luminance resolution in the different modes. Chroma resolution was not speced.

Apparently the high end machines could have more luma bandwidth in monochrome mode. Since color subcarrier was not present they didn't have to TBC to accurate color phase.

Did you mean to say, "Apparently the low end machines could have more luma bandwidth in monochrome mode"? I would agree with it. So, chroma interferes with luma? And because high-band machines have wider luma bandwidth, chroma interference does not affect luma resolution that much? I am not sure how TBC is related, considering that old machines did not have built-in TBC.