4-49
PulseBar
(TV formats only)
Description:
The image looks like two vertical lines followed by
a wide vertical bar on a display’s screen. The first
line is a sine-squared modulated pulse that fades
from black to red and back to black. The pulse is
20T for PAL and 12.5 T for NTSC formats. The second
narrower line is a 2T 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). One scan line of the image, as it would appear
on a waveform analyzer, is shown here:
Summary of Contents for 801GC, 801GF, 801GX
Page 1: ...Owner s and Programmer s Manual Model 801GC 801GF 801GX Portable Video Signal Generators ...
Page 16: ...xiv Table of Contents Models 801GC 801GF 801GX Rev A Notes ...
Page 17: ...1 1 Features Product Overview Chapter 1 Introduction ...
Page 21: ...2 1 Operating Modes Displays Indicators Knobs Switches Buttons Chapter 2 Basic Operation ...
Page 31: ...3 1 Introduction Format charts Chapter 3 Built In Formats ...
Page 39: ...4 1 Description of the test images and how to use them Chapter 4 Built In Images ...
Page 126: ...5 14 Chapter 5 Making Connections Model 801GC 801GF 801GX Rev A Notes ...
Page 304: ...6 178 Chapter 6 Programming Model 801GC 801GF 801GX Rev A Notes ...
Page 305: ...7 1 Power on Computer Interfacing If all else fails Chapter 7 Troubleshooting ...
Page 346: ...A 6 Appendix A Specifications Model 801GC 801GF 801GX Rev A Notes ...
Page 355: ...Notes ...