Ceyear 4041 Series, User Manual

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Chapter VI Powe Meter Mode (Option)
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6.3.3 Average menu
Average
Off On
Average
·[Average Off On]: Press
【
BW
】
→[Average Off On]. You can change it by using the
numeric keys, or by using
【 ↑ 】 【 ↓ 】
or the knob. The step of the average change is
1.
·[Special Attention]: When measuring low-power signals or signals close to the
noise power, the average function is generally used to smoothen the trace, reduce
the influence of random noise on the measurement, and improve the measurement
accuracy, but it will reduce the measurement speed. The average number of times
determines the number of times of the averages to be read. The noise is reduced
significantly if the average number of times is high.
6.3.4 Zero calibration menu
Zero
Calibrate
·[Zero]: press [Zero]→[Zero].
•[Special Attention]: In order to improve the measurement accuracy of the
instrument, it is necessary to make zero calibration on the instrument before
using the 8723X series USB power probe for small signal Power meter. Zero
calibration means measuring and saving noise in the entire measurement channel.
During the measurement, it is necessary to deduct the zero calibration value from
the actual measurement value, i.e., the noise in the channel is deducted, and the
reading at this time is the real channel input signal level. The zero calibration of
the USB power probe is the same as that of general power probe. The zero
calibration here refers to the internal zero calibration of the USB power probe.
The internal zero calibration refers to testing, measuring and saving of noise in
the channel by adding a switch at the front of the channel so that the user does not
need to disconnect the sensor from the measured piece. During the internal zero
calibration, the RF signal is always applied to the power probe, which can reduce
the wear of the probe connector and shorten the test time.
6.3.5 Limit menu
Limit
Off On
Limit
Upper Limit
Lower Limit
Alarm
Off On
·[Limit Off On]: Press [Limit]→[Limit Off On] to turn the limit on.
·[Upper Limit]: Press [Limit]→[Upper Limit]. You can change it by using the numeric
keys, or by using
【 ↑ 】 【 ↓ 】
or the knob. The step of the limit change is 1 dB.
·[Lower Limit]: Press [Limit]→[Lower Limit]. You can change it by using the
numeric keys, or by using
【 ↑ 】 【 ↓ 】
or the knob. The step of the limit change is 1 dB.
·[Alarm Off On]: Press [Limit]→[Alarm Off On]. When the limit alarm is turned on,
the instrument will give an alarm if the measurement data exceeds the set limit value.
6.3.6 File menu
Refer to the description of the file menu in the Spectrum Analyzer mode.