Dsst, Dsst digital sync separate type – Quantum Data 802BT User Manual

Page 307

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Video Test Generator User Guide

297

DSST

Digital Sync Separate Type

Class

Format parameter setting - Digital video signal

Description

Establishes the type of digital separate sync that appears at the digital HS and VS outputs

of the generator when digital composite sync is selected via the

SSST

command and the

outputs are gated on via the

HSPG

and

VSPG

commands. The only difference between

EIA and CCIR digital separate syncs is that, in the case of CCIR, the width of the vertical

sync pulse is 0.5 line shorter than the width specified via the

VSPW

command. In the EIA

case, the width of the vertical sync pulse is as programmed.

After sending the DSST command, send the

FMTU

or

ALLU

command.

Command syntax

DSST type

type

0 = none

1 = American separate

2 = American HDTV separate

3 = European HDTV separate

4 = Japanese HDTV separate

5 = European separate

Query syntax

DSST?

Query response

Returns the current setting of DSST. A setting of zero (0) indicates that separate digital

H&V sync cannot be activated by the operator.

Example

DSST 1
FMTU // Update hardware to current buffer contents

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