Using the Medical Functions
Non Interlaced Video Triggering
2
2-9
Non Interlaced Video Triggering
To select triggering on a non interlaced video signal, do
the following:
1
Apply a video signal to the red input A.
2
Display the
TRIGGER
key labels.
3
Open the
Trigger Options
menu.
4
Select
Video on A
to open the
Trigger on Video
menu.
5
Select positive signal polarity for
video signals with negative going
sync pulses.
6
Select
Non interlaced
to open the
Scan rate
menu.
7
Select the required Scan rate and
confirm the selection.
Trigger problems
The non-interlaced trigger circuits expect synchronization
pulses that comply with standard video, or that are of
similar amplitude but with shorter pulsewidth. The circuit
however covers most other “standards” too. In case of
incidental problems you always can define the trigger
conditions in more detail using pulse width triggering.
