User manual

RIGOL Chapter 6 Sweep
DG4000 Series User’s Guide
6-8
Return Time
The generator will always sweep from “Start Frequency” to “End Frequency” and
stay within “End Hold” time. Return time describes the time needed for the output
to return to “Start frequency” from “End frequency” after “End hold”.
When Sweep is enabled, press ReturnTime and use the numeric keyboard or
knob to change the return time. The default value is 0s and the available range is
from 0s to 300s.
The generator will renewedly sweep from the specified “Start Frequency” once the
return time is changed.
Mark Frequency
The sync signal on the [Sync] connector corresponding to the channel at the front
panel always changes from low-level to high-level at the start of each sweep, and
changes from high-level to low-level at the middle of the sweep period when
“Mark” function is disabled or at the specified mark frequency point when “Mark”
function is enabled.
When Sweep is enabled, press MarkFreq and select “On”, as shown in the figure
below, use the numeric keyboard or knob to modify the mark frequency. The
default value is 550Hz and the available range is limited by “Start Frequency” and
“End Frequency”.
The generator will renewedly sweep and output from the specified “Start
Frequency” once the Mark Frequency is changed.
Note: in step sweep mode, MarkFreq is grayed out and disabled.