882 Video Test Instrument User Guide
(Rev A.35)
311
DVQM
Digital Video Quantization Mode
Class
Format parameter setting - Digital video signal
Description
Controls the range of digital signals per the EIA/CEA-861-C standard.
The DVQM? query returns the current DVQM mode.
Command syntax
DVQM
mode
mode
Use the following table to determine the proper mode (0, 1, or 2).
Notes:
•
Computer (for example, DMT and CVT) formats set DVQM=0 for full range.
•
DVQM can be set to 1 to test the undershoot/overshoot signal code margins (for
example, see SMPTE 296M section 7.12).
•
Television formats (for example, 1080i29) set DVQM=2 for reduced range required by
various television standards (for example, EIA/CEA-861-C).
Query syntax
DVQM?
Example
DVQM 1 // Sets the quantizing mode to 1.
FMTU
// Applies the format change
Related commands
,
DVQ
Mode
Components
NBPC=8 ranges
NBPC=10 ranges
NBPC=12 ranges
LMIN
LMAX
LMIN
LMAX
LMIN
LMAX
0
RGB
0
255
0
1023
0
4095
YC
b
C
r
0
255
0
1023
0
4095
1
RGB
1
254
4
1019
16
4079
YC
b
C
r
1
254
4
1019
16
4079
2
RGB
16
235
64
940
256
3760
YC
b
C
r
16
240
64
960
256
3840
Summary of Contents for 881
Page 1: ...881 882 Video Test Instrument User Guide 882E for HDMI ...
Page 12: ...10 Contents ...
Page 50: ...38 Chapter 1 Getting Started ...
Page 84: ...72 Chapter 2 Testing Video Displays ...
Page 99: ...882 Video Test Instrument User Guide Rev A 35 87 ...
Page 102: ...90 Chapter 3 Administrative Tasks ...
Page 107: ...882 Video Test Instrument User Guide Rev A 35 95 ...
Page 216: ...204 Chapter 5 Working with Formats ...
Page 248: ...236 Chapter 7 Working with Images ...
Page 264: ...252 Chapter 8 Working with Test Sequences ...
Page 382: ...40 Chapter 11 Testing EDID for HDMI 2 Expand the EDID Block in the navigation view ...
Page 446: ...104 Chapter 12 CEC Interactive Troubleshooting Environment ITE ...
Page 493: ...882 Video Test Instrument User Guide Rev A 35 151 ...
Page 591: ...882 Video Test Instrument User Guide Rev A 35 213 Commands by name ...
Page 687: ...882 Video Test Instrument User Guide Rev A 35 309 Example DVIC 23 FMTU ...
Page 1018: ...580 Appendix B Image Reference The EMITest5 image is shown below ...
Page 1094: ...656 Appendix B Image Reference ...
Page 1124: ...686 Appendix C Error Messages ...
Page 1140: ...702 Appendix D Format Reference ...