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Acquiring and Displaying Waveforms
TDS 500C, TDS 600B, & TDS 700C User Manual
3–61
If you shift the waveform right or left with the front-panel HORIZONTAL
POSITION knob, the window next to the side-menu Frame button will indicate
the frame number of the waveform at the center of the screen.
FastFrame Operating Characteristics. Consider the following operating character-
istics when using FastFrame:
H Envelope, Average, and Hi Res form the envelope or average following the
last frame of the concatenated record. For example, if Average or Hi Res
acquisition modes are selected and the frame count is 10, segments 1 through
10 will show Sample or Hi Res frames, and frame 11 will show the average
of frames 1 through 10. If there is not room for one additional frame, the
envelope or average of the frames replaces the display of the last acquired
frame. Average and envelope counts have no affect in FastFrame.
H You can press 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 waveforms contain many triggers, trigger position
indicators are removed from both the waveform and the record view when
the selected channel, reference, or math waveform is a FastFrame waveform.
H In Equivalent Time, the oscilloscope ignores FastFrame mode.
H Because FastFrame introduces additional processing time into the operation
cycle of acquire, process, and display, its 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 pressing the RUN/STOP button to stop the acquisition.