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back to black. The pulse is 20 T for PAL and 12.5 T for NTSC formats. The second
narrower line is a 2 T white sine-squared pulse. T = 100 nSec for PAL and 125 nSec for
NTSC formats. The wide bar is white with sine-squared edges.
Test
Video system testing
This multi-purpose pattern can be used with other instruments to check television K
factors. The modulated pulse can be used to check chrominance-to-luminance delay and
gain. The narrow white line can be used to measure short term linear distortion (K2T).
680
Appendix B Image Reference
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