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DPO6000, MPO6000 Series Digital Fluorescent Oscilloscope Product Manual V1.3
27
High resolution
This mode uses an oversampling technique to average the neighboring points of the
sampled waveform to reduce random noise on the input signal and produce a smoother
waveform on the screen. It is usually used when the sampling rate of the digitizer is
higher than the storage rate of the acquisition memory.
The high-resolution mode is actually a low-pass filtering method, so the bandwidth of
the measured signal is limited, that is, the measurement accuracy is improved by sacri-
ficing the bandwidth of the measured signal. With the calculation of the number of adja-
cent points used, increasing the effective number of digits will increase accordingly. The
DPO6000 / MPO6000 series oscilloscopes can be enhanced to a maximum of 12 digits.
In high-resolution mode, the oscilloscope is always running in the highest sampling rate
mode, and the number of enhancement bits changes with the oscilloscope's time base.
Note: The averaging method used by "Average" and "High Resolution" modes is differ-
ent. The former is "Multiple Sampling Average" and the latter is "Single Sampling Aver-
age".
Sampling rate
The sampling rate is the number of times (Sa/s) that the oscilloscope samples the sig-
nal in unit time. DPO6000 / MPO6000 series oscilloscope single channel maximum re-
al-time sampling rate of 1GSa/s, and will automatically switch according to the current
acquisition mode, memory depth, time base settings, automatically calculate the ap-
propriate sampling rate, without the need for users to manually set.
Function selection operation
By switching the memory depth {press the front panel Utility-> Acquisition-> Memory
Depth}.
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