UNI-T UTS3000B/A Series User Manual page 64

operation mode of the spectrum analyzer.
When the exponential average mode is selected, after a specified average time is reached, each
channel trace data is weighted exponentially, added to the previous average value and then take the
average. In the exponential average mode, the weight of the new data is larger than that of the old data,
which is conducive to track signals that change slowly. Measured average result will be displayed after
the sweeping.
When the repetition average mode is selected, after a specified average time is reached, all the previous
data will be delete and restart the sweeping.
Integ BW: Used to specify the range of integrals to calculating the power in a channel. For example, set
the bandwidth of the main channel. Notice that the integral bandwidth is displayed in a blue box on the
screen. In this case, the sweep span should be set between 1 and 10 times of the integral bandwidth.
User can change the integral bandwidth by using the numeric key, rotary knob, direction key, or touch the
panel menu.
Meas Preset: Reset all parameters of the current measuring mode to factory setting.
Time Domain Power
5-2
Figure Time Domain Power
Press [Meas] >T-power, system will enter zero span mode and calculating the power in time domain.
The setting menu as follows.
Meas/Setup:
Avg|Hold Num（On/Off）: Press average time (on) to specify the average number of sweep to
calculating the measurement results. Sweep time range is from 1 to 999. User can change the average
time by using the numeric key, rotary knob, direction key, or touch the panel menu. Measured average
result will be displayed after the sweeping. Select (off) to turn off this measuring average function.
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