User manual

Digital Storage Oscilloscope 49
when the sample rate of the digital converter is higher than the storage rate of the
acquisition memory.
Note: "Average" and "HR" modes use different averaging methods. The former uses
"Multi-sample Average" and the latter uses "Single Sample Average".
Time Base: The oscilloscope digitizes waveforms by acquiring the value of an input
signal at discrete points. The time base helps to control how often the values are
digitized. Use the SEC/DIV knob to adjust the time base to a horizontal scale that suits
your purpose.
Push the UTILITY button and press Acquire softkey to set the acquisition parameter.
Options
Settings
Comments
Mode
(Real Time)
Normal
Peak Detect
Average
HR
Acquire and accurately display most waveforms.
Detect glitches and eliminate the possibility of
aliasing.
Reduce random or uncorrelated noise in signal
display. The number of averages is selectable.
Disp Mode
YT
XY
Roll
YT format shows the vertical voltage in relation to
time (horizontal scale); XY format displays a dot
between CH1 and CH2 each time when a sample
is acquired, where the voltage or current of CH1
determines the X coordinate of the dot (horizontal)
and the voltage or current of CH2 determines the
Y coordinate (vertical). For detailed information,
refer to descriptions on XY format in the following
text.
Averages
4, 8, 16
, 32,
64, 128
Select the number of averages by pressing F3 or
F4.
Memory
Depth
Select the memory depth for different board
models.
Normal: For the oscilloscope model with the bandwidth of 100MHz, the maximum
sample rate is 1GS/s. For time base with insufficient sample rate, you may use the Sine
Interpolation Algorithm to interpolate points between sampled points to produce a
complete waveform record (4K by default).