User manual

Table Of Contents
GDS-2000A Series User Manual
156
5. Use the side menu to select the
pulse width trigger source.
Range
Channel 1 ~ 4 (Alternate On/Off),
EXT (Ext Probe: Volt/Current,
Attenuation: 1mX~1kX ), AC Line
6. Press Polarity to toggle the polarity
type.
Range
Positive (high to low transition)
Negative (low to high transition)
7. Press When from the lower bezel.
Condition
> , < , = , ≠
Width
10ns ~ 10s
8. Press Threshold from the lower
bezel to edit the pulse width
threshold.
Range
-XXV~XXV
Set to TTL 1.4V
Set to ECL -1.3V
Set to 50%