Tektronix TDS5054, User Manual

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Acquiring Waveforms
TDS5000 Series User Manual
3- 43
FastFrame is not compatible with the following features or modes:
H
Equivalent Time
H
Histograms
H
Fast Acquisitions
H
Average
H
Envelope
Consider the following operating characteristics when using FastFrame:
H
You can push
RUN/STOP
to terminate a FastFrame sequence. If any frames
were acquired, they are displayed. If no frames were acquired, the previous
FastFrame waveform is displayed.
H
Because FastFrame introduces additional processing time into the operation
cycle of acquire, process, and display, it it best to use Single Sequence
Acquisition (see Acquire menu, Stop After menu). With Single Sequence
selected, you will see the current acquisition sequence; otherwise, the display
lags the current sequence by one sequence. You can also see the current
sequence by pushing the RUN/STOP button to stop the acquisition.
H
FastFrame greatly reduces the minimum trigger holdoff time, enabling you
to acquire and store records at rates of up to 225,000 captures per second
(until the number of frames requested has been acquired). FastAcq mode also
provides exceptionally fast acquisition rates. Both modes have advantages.
FastFrame preserves the actual data associated with each trigger event for
further analysis or visual inspection, but only acquires at the fast rate for
short bursts of time. FastAcq mode combines the data from all trigger events
into a single pixel map, but can acquire at exceptionally fast rates continu-
ously, not just for short bursts.
Using FastFrame
Acquisitions