802BT/802R Video Test Generator User Guide
141
Analyzing noise from an external device
The analyzer can test and analyze the transmission quality of an external HDMI/DVI
transmit device using pseudo-random noise.
Important: To perform this test, the external HDMI/DVI transmit device must be able to
generate pseudo-random noise using the QDI-BCM format.
Note: Before performing this test, you may first want to test the cables and distribution
equipment used to transport the HDMI/DVI signal between the external device and
generator. For more information, see “
Testing cables and distribution systems
” on page
118.
To test an external HDMI/DVI signal using pseudo-random noise:
1. Connect the HDMI/DVI transmit device to the HDMI/DVI Rx connector on the generator.
2. If necessary, set the proper HDMI/DVI signal source and pseudo-random noise
parameters within the generator.
•
See “
Starting the Analyzer Setup Utility
” on page 112 for steps on viewing the
current analyzer configuration.
•
To edit HDMI/DVI signal source parameters, see “
Setting up analyzer to measure
timing
” on page 114.
Note: The HDMI/DVI signal source must be set to external (Auto Based On field set
to
MEASURED
) for this procedure.
•
To edit pseudo-random noise parameters, see “
Setting pseudo-random noise
parameters
” on page 142.
3. If desired, monitor the video/audio signal received on the HDMI Rx connector (see
“
Monitoring HDMI analyzer signal input
” on page 110).
4. Start the analyzer (see page 113).
5. Generate pseudo-random noise from the HDMI/DVI transmit device.
6. Press and release the
B
key to analyze the number of pixel errors detected per color
component of the received HDMI/DVI signal (see example below).
To stop the analysis, press and release the
B
key again. The light on the key
extinguishes and the analysis stops.
R: G: B:
0 21 0
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 ...