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Rohde & Schwarz FSEA20 Manuel D'utilisation page 424

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Option TV Demodulator
VERT SYNC
VERT SYNC
ODD FIELD
VERT SYNC
EVEN FIELD
HOR SYNC
1065.6016.12
The softkey VERT SYNC sets the trigger to the vertical sync signal. It is
possible to trigger on the frame repetition without a differentiation being
made between the two fields.
IEC/IEEE bus command
:TRIGger<1|2>[:SEQuence]:VIDeo:FIELd:SELect ALL
The softkeys VERT SYNC ODD FIELD or VERT SYNC EVEN FIELD set the
trigger to the vertical sync signal of the first or second field.
IEC/IEEE bus command
:TRIGger<1|2>[:SEQuence]:VIDeo:FIELd:SELect ODD | EVEN
The softkey HOR SYNC sets the trigger to the horizontal sync signal. It
activates line input.
The trigger can be set to any line. Depending on the setting of the line
systems, lines 1 to 525 or 625 are possible. If a higher line number is
entered, the trigger is set to the highest possible number.
In order to trigger on test line 17 according to CCIR 473-4, for example, the
line value is to be set to 17. This is also the default setting after switching on
of the TV demodulator.
IEC/IEEE bus command
:TRIGger<1|2>[:SEQuence]:VIDeo:LINE:NUMBer <num_value>
4.212
FS
E-15

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