
Publication # 68-00155 (Rev: B 26-JULY-95) Page 19
DSCT <type>
Limits: <type>
0=none
1=American HDTV ORed
2=American ORed
3=American w/serr
4=American w/serr & eq
5=European HDTV ORed
6=European ORed
7=European w/serr
8=European w/serr & eq
9=American HDTV w/serr
10=American HDTV w/serr & eq
11=European HDTV w/serr
12=European HDTV w/serr & eq
13=Japanese HDTV ORed
14=Japanese HDTV w/serr
15=Japanese HDTV w/serr & eq
Description: The DSCT command establishes the type of composite sync that appears at the digital
composite sync outputs when digital composite sync is selected via the SSST command. The
DSCT? query returns the current setting of DSCT. A setting of zero (0) indicates that the
“DCS” sync enable button can not be activated by the operator.
DSST <type>
Limits: <type>
0=none
1=American separate
2=American HDTV separate
3=European HDTV separate
4=Japanese HDTV separate
5=European separate
Description: The DSST command establishes the type of digital separate sync that appears at the digital
HS & 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. The DSST?
query returns the current setting of DSST. A setting of zero (0) indicates that the “DHS &
DVS” sync enable button can not be activated by the operator.
DVSP <polarity>
Limits: <polarity>
1 = active-high (positive going pulse)
Description: The DVSP command establishes the logic sense of the digital video outputs. Polarity must be
set to active-high on the generator, otherwise an error will be reported. The DVSP? query
returns the current setting of DVSP.
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