Setting The Display System - Tenma 72-8710 Operating Manual

DSO Series User Ma nual
Definitions :
Real time sampling : In this mode, the system makes full
acquisition to fill the memory. Maximum real time sampling rate is
1GS/s. At a setting of 50ns or faster, the oscilloscope will automatically
carry out interpolation, i.e. inserting a sampling point between other
sampling points.
Equivalent sampling : This is a repeated sampling mode that allows
detailed observation of repeated cyclical signals. In the equivalent
sampling mode, the horizontal pixel aspect ratio is 40ps higher than
the real time mode, i.e. 25GS/s equivalent.
Sampling mode : Your oscilloscope acquires signal samples at
equal time intervals to reconstruct waveform.
Peak detect mode : In this acquisition mode, the oscilloscope
identifies the biggest and smallest values of the input signals at
each sampling interval and use these values to display the
waveform. In effect, the oscilloscope can acquire and display narrow
pulse which would otherwise be omitted in the sampling mode. Noise
seems to be more significant in this mode.
Average mode : The oscilloscope acquires several waveforms and
take the average value to display the final waveform. You can use
this mode to reduce random noise.

Setting the Display System

As shown below, the [DISPLAY] button in the control zone is the
function key for the display system.
Figure 2-20 Function key for the sampling system (display)
Press the [DISPLAY] button to pop out the setup menu shown below.
You can use this menu to adjust the display mode.
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