Quantum Data 802BT User Manual page 312

DVQM
Class
Description
Command syntax
Query syntax
Example
Related commands
302 Appendix A Command Reference
Digital Video Quantization Mode
Format parameter setting - Digital video signal
Controls the gamut of digital signals per the EIA/CEA-861-B standard.
The DVQM? query returns the current DVQM mode.
DVQM mode
mode
Use the following table to determine the proper mode (0, 1, or 2).
DVQ
Components
Mode
0 RGB
YC C
b r
1 RGB
YC C
b r
2 RGB
YC C
b r
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).
DVQM?
DVQM 1
FMTU
LMIN, LMAX, NBPC
NBPC=8 gamuts NBPC=10 gamuts
LMIN LMAX LMIN
0 255 0
0 255 0
1 254 4
1 254 4
16 235 64
16 240 64
NBPC=12 gamuts
LMAX LMIN LMAX
1023 0 4095
1023 0 4095
1019 16 4079
1019 16 4079
940 256 3760
960 256 3840