UNI-T UPO2102 User Manual page 102

User's Manual
is displayed in red color.
b. Average: the spectrum waveform displays the average value by sampling point in time interval, the
corresponding spectrum waveform is displayed in blue color.
Average time: set the number of times of the average calculation, when the average spectrum is
enabled, the number of times can set to 2, 4, 8, 16, 32, 64, 128, 256, 512, or 1024. The larger the
number, the smoother the average spectrum.
c. Maximum hold: the spectrum waveform displays the maximum value among the multiple sampling
data, and the corresponding spectrum waveform is displayed in yellow.
d. Minimum hold: the spectrum waveform displays the minimum value among the multiple sampling
data, and the corresponding spectrum waveform is displayed in gray.
Sampling Point Mode
a. OFF: turn off the detection display
b. + Peak: take the maximum value within the range of each sampling point.
c. – Peak: take the minimum value within the range of each sampling point.
d. Average: take the average value within the range of each sampling point.
e. Interval: perform sampling in the same time interval.
Reset trace: fresh every spectrum data
Note: A detection trace must be displayed in detecting mode. If all detecting mode is not enabled, the
default setting is normal detecting trace.
(7) Enhance FFT - Marker
To mark the point in spectrum and display frequency value and voltage value. Mark mode includes
auto, threshold and manual.
a. Auto
Mark trace: Select spectrum wave as the marker source, which is the spectrum waveform

generated by different detection types under the detecting mode, it can set to normal, average,
maximum hold and minimum hold.
Maximum count: Set the maximum marker point. The range can set to 1~50.

Event list: Display the information of current marker point, which is serial number of point,

frequency and voltage.
b. Threshold
Mark trace：Select spectrum wave as the marker source, which is the spectrum waveform

generated by different detection types under the detecting mode, it can set to normal, average,
maximum hold and minimum hold.
Threshold：Set the threshold value as the compare condition. Display the marker point when

peak value is greater than threshold. Otherwise, it will not display the marker point.
Event list: Display the information of current marker point, which is serial number of point,

frequency and voltage.
c. Manual: Adjust Multipurpose knob to move marker to any point on trace.
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