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980 DP 1.4 Video Generator / Analyzer - User Guide
16.176
TVBar100 & TVBar_75 (TV formats only)
16.176.1
Description
The image consists of seven vertical bars that fill the entire active video area. The color and order of the bars is
shown in the figure below. The TVBar100 image has a peak video level of 100 IRE and the TVBar_75 image has a
peak video level of 75 IRE.
The TVBar100 image is shown below.
16.176.2
Test
Color video performance.
16.176.3
Purpose
This general purpose pattern can be used to check the video handling capabilities of most parts of a television
system.
16.176.4
Method
When viewed on a TV screen, all of the colors should be correct and in the order shown.
The hue and intensity of each bar should be uniform over the entire bar.
The image can be used with a TV waveform analyzer to check the performance of a video system. Individual scan
lines of each image, as they would appear on a waveform analyzer, are shown on the following page.
The image is quite effective when used with a TV vectorscope to see how a video system handles an encoded
color signal.The image consists of a white crosshatch on a black background. The lines form square boxes when
the display's active video area has a 4:3 aspect ratio. The vertical lines are made using sine-squared (2 T) pulses
(T = 125 nSec for NTSC and T = 100 nSec for PAL).
Page 499
Rev. A1
June 16, 2017
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