802BT/802R Video Test Generator User Guide
123
Measuring pixel errors
In cases where the external HDMI/DVI device cannot generate pseudo-random noise, a
“delta error” testing capability is provided that allows analysis for flickering pixels in a
still-frame test image. With the video signal connected to the analyzer input, signal quality
can be measured blindly and test results delivered in simple numeric terms.
The procedures below provide instructions through the front panel. Note that you can also
configure the analyzer to measure pixel errors through the command line. For procedures
using the command line refer to “
Pseudo-random noise generation commands
” on page
132.
Setting delta error patch parameters
To enable and configure delta error patch testing by the analyzer, you must set certain
analyzer parameters properly. Use the procedure to configure the analyzer to test for delta
error patch testing.
To set delta error patch testing parameters:
1. Start the Analyzer Setup Utility (see page 112).
2. If necessary, see “
Setting up analyzer to measure timing
” on page 114 for steps to
configure the appropriate HDMI/DVI signal source and timing parameters.
3. Press and release the
Step
key.
The
Step
key illuminates and the
Analyzer
Images
field is highlighted.
4. Using the
Format
knob, select the
Delta Error Patch Setup
field.
5. Using the
Image
knob, specify whether to enable (ON) or disable (OFF) delta error
patch.
If set to OFF, delta error patch is disabled and all associated fields are disabled.
6. Using the
Format
knob, select the
Travel
field.
7. Using the
Image
knob, specify how you want the patch to move across the display as
follows:
•
Select Zig Zag to move over the active video in a zig zag fashion.
•
Select FIXED to move over the active video in a fixed position.
8. Using the
Format
knob, select the
Parameters
field.
9. Using the
Image
knob, specify how you want the delta error patch implemented as
follows:
•
Select AUTO to allow the generator to automatically set the patch settings. The
patch width and height are calculated based on size of the active video area.
Summary of Contents for 802BT
Page 1: ...802BT 802R Video Test Generator User Guide ...
Page 52: ...42 Chapter 2 Testing Video Displays ...
Page 62: ...52 Chapter 3 Administrative Tasks ...
Page 118: ...108 Chapter 7 Using GPIB Interface ...
Page 194: ...184 Chapter 10 Testing EDID ...
Page 204: ...194 Chapter 11 Testing HDCP ...
Page 214: ...204 Appendix A Command Reference Commands by name ...
Page 595: ...Video Test Generator User Guide 585 ...
Page 611: ...Video Test Generator User Guide 601 ...
Page 612: ...602 Appendix A Command Reference ...
Page 716: ...706 Appendix B Image Reference ...
Page 744: ...734 Appendix C Error Messages ...