Dvqm, Dvqm digital video quantization mode – Quantum Data 802BT User Manual
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Appendix A Command Reference
DVQM
Digital Video Quantization Mode
Class
Format parameter setting - Digital video signal
Description
Controls the gamut of digital signals per the EIA/CEA-861-B 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 gamut.
•
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 gamut required by
various television standards (for example, EIA/CEA-861-B).
Query syntax
DVQM?
Example
DVQM 1
FMTU
Related commands
DVQ
Mode
Components
NBPC=8 gamuts
NBPC=10 gamuts
NBPC=12 gamuts
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