Acquiring and Displaying Waveforms
TDS 500D, TDS 600B, & TDS 700D User Manual
3–67
If you select any of these modes before or while DPO is on, they will remain
selected in their respective menus, but the oscilloscope will ignore them. It will
put the modes into effect when you turn DPO off. If the oscilloscope setup is not
as you expect when you turn DPO off, this may be because the oscilloscope quit
ignoring these DPO incompatible modes.
DPO mode disallows selection of Math waveforms. If you attempt to select a
math waveform from the MORE menu, the oscilloscope will display an error
message. Either switch DPO off and create the math waveform, or select a
channel waveform and continue using DPO mode.
DPO displays using a persistence display style (see display menu). If you select
Intensified time base, the intensified zone is controlled by Horizontal Scale and
Delay time settings as when DPO is off, but the zone is masked by the persis-
tence display mode and cannot be seen. Turn off DPO to display the intensified
zone.
Using FastFrame
You can define and enable FastFrame (TDS 500D and 700D models only). This
feature lets you capture multiple acquisitions in the acquisition memory of a
single channel. Figure 3–32 shows how FastFrame combines the desired
captured records into one larger record. For example, FastFrame would let you
store 10 records of 500 samples each into one record with a 5000 sample length.
Real Time
Fast Frame
Figure 3–32: Fast Frame
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