[QuadList] Sunday Trivia Questions--Why is there a 15-line mode on some WFM monitors, and how is it used?--

[Dennis Degan]

		On Jul 13, 2014, at 2:18 PM, Ted Langdell wrote:

> And now for something Quad-centric:
> Why is there a 15-line mode on some WFM monitors?
> How is it used?
> Hope everyone is doing well.

		I answer:

	Each head pass of a quad VTR's spinning head wheel covers approximately 16 scan lines of NTSC video.  I don't recall ever using this mode, but it seems like if you're trying to check a particular head's video output, this would be one way to do it.

			Dennis Degan, Video Editor-Consultant-Knowledge Bank
					    NBC Today Show, New York


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