Quantum Data 802BT User Manual page 653

Method
Test
Purpose
Method
GrayL1, GrayL3
Description
Grays5, Grays9, Grays11, Grays16, Grays32, Grays64
Description
802BT/802R Video Test Generator User Guide
Perform the Brightness Control Adjustment and Brightness Uniformity tests first.
Changes in brightness from bar to bar should be uniform. All of the bars should appear as
an untinted gray at all levels.
Video gain linearity (monochrome monitors)
To check the video linearity (grayscale modulation)
Perform the Brightness Control Adjustment and Brightness Uniformity tests first.
Changes in brightness from bar to bar should be visible and uniform.
The GrayL1 image is shown below.
These images have the designated number of full-height vertical graybars.
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