Quantum Data 881, User Manual

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326 Appendix A Command Reference
EQUB
EQUalization interval Before vertical sync pulse
Class Format parameter setting - synchronization
Description Establishes the width of the equalization interval before the vertical sync pulse in each
field whenever a serrated and equalized sync type is selected via either ASCT or DSCT
commands and selected via the SSST command. If the type specified for the selected
sync signal is one of the CCIR types, then the actual equalization interval output by the
generator will be 0.5 lines shorter than the whole number specified. The EQUB? query
returns the current setting of EQUB.
Command syntax EQUB lines
lines
min = 0
max = number of lines after video and before vertical sync
Query syntax EQUB?
Query response lines
Other required
commands
The FMTU command instructs the generator to use the new setting. The ALLU command
updates hardware to the new setting and redraws the test image.
Example
EQUB 3 // Set pre-equalization to 3 lines in buffer
FMTU // Update hardware to current buffer contents