Chapter 2 Front Panel Operations RIGOL
DSG800 User's Guide 2-13
input from the [TRIGGER IN] connector (as shown in the figure below) at
the rear panel. If the sweep mode is set to "Cont", the instrument starts to
sweep a point each time a TTL pulse signal with the specified polarity is
received. If the sweep mode is set to "Single", you need to press Single to
meet the single sweep condition; after that, the instrument starts to sweep
a point and then stops after the sweep period expires each time a TTL pulse
signal with the specified polarity is received.
To specify the polarity of the TTL pulse signal, press Trig Slope to select
"Pos" or "Neg" and the default is "Pos".
When executing the sweep operation, the priority order of the conditions is
Single Sweep Trigger Mode
Point Trigger Mode. For example, when
both the trigger mode and point trigger mode are set to "Key" trigger:
In "Cont" sweep mode, you need to press Key Trig to meet the
trigger mode of the whole period and then press Key Trig again to
meet the trigger mode of the points within the sweep period; then, the
instrument starts to sweep.
In "Single" sweep mode, you need to press Single to meet the single
sweep condition and then press Key Trig twice to meet the sweep
period trigger mode and point trigger mode respectively; then, the
instrument starts to sweep.
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