
Source Selection
Click or tap Source drop-down button to select CH1-CH4. For details, refer to
. The selected trigger source is indicated in the trigger information label at the
top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Video Polarity
In the Polarity item, select the desired polarity: positive polarity (
) or negative
polarity (
).
Video Standard
Click or tap the drop-down button of Standard to select the desired video standard.
Table 8.1 Video Standard
Video Standard
Frame Frequency
(Frame)
Scan Type
TV Scan Line
NTSC
30
Interlaced Scan
525
PAL/SECAM
25
Interlaced Scan
625
480p/60Hz
60
Progressive Scan
525
576p/50Hz
50
Progressive Scan
625
720p/60Hz
60
Progressive Scan
750
720p/50Hz
50
Progressive Scan
750
720p/30Hz
30
Progressive Scan
750
720p/25Hz
25
Progressive Scan
750
720p/24Hz
24
Progressive Scan
750
1080p/60Hz
60
Progressive Scan
1125
1080p/50Hz
50
Progressive Scan
1125
1080p/30Hz
30
Progressive Scan
1125
1080p/25Hz
25
Progressive Scan
1125
1080p/24Hz
24
Progressive Scan
1125
1080i/60Hz
60
Interlaced Scan
1125
1080i/50Hz
50
Interlaced Scan
1125
Sync
In the Sync item, select the desired sync type.
Triggering the Oscilloscope
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HDO1000 User Guide
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