TM 11-6625-3025-14/ET426-AA-MMA-010/E154 VII210/T.O. 33A1-8-902-1-1
(5) Waveform:
Circuit card jumper selection of Industrial waveform in accordance with EIA Standard RS-
343.
Typical pulse widths
V drive
13.5 lines
V drive porch
3 lines
V sync
3 lines
V post
3 lines
V blanking
26 lines
H blanking
7.0 usec
H drive
3.5 usec
H front porch
1.0 usec
H sync
2.75 usec
2H equalizing
1.4 usec
2H serrations
2.0 usec
b.
Pattern Generator Section.
(1) Functions:
Flat field
Uniform white level over entire active area.
V stripe
Nominally 50% of each scan line at white level, 50% at black level, for test of transient
and mid-frequency response.
H stripe
Nominally 50% of the vertical field at white level, 50% at black level, for test of low
frequency response at field rate.
Window
A 25% duty cycle test, combination of H stripe and V stripe, for combined transient
and low frequency response tests.
Gray scale
Standard ten step slope adjustable to linear or log.
V bars
Straight vertical lines accurately spaced to serve as a linearity reference in the
horizontal plane of a video display.
H bars
Straight horizontal lines accurately spaced to serve as a linearity reference in the
vertical plane of a video display.
Bars
A combination of the H bars and V bars to form a grid ("crosshatch" or "grating") for
linearity reference in both display planes simultaneously.
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