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7.3.
Measurement Parameters Setting
7.3.1.
Frequency
To obtain more convenient observation, you may set corresponding frequency range according to testing requirements for more accurate
observation over power value of frequency point tested. Specific steps are as follows:
1) Press
【
Freq/Dist
】
to enter menu bar of frequency software;
2) Click [FREQ] menu (selected by default as there is only one drop-down menu in the menu), then input measurement frequency of
power meter using knob,
【
↑
】【
↓
】
keys, and numeric keys. Press corresponding menu and select frequency unit to complete
frequency setting when numeric keys are used in inputting frequency values.
7.3.2.
Sweep
Average function
Average function covers average operation on results obtained from several continuous measurements and displays average result as
measured values. Average factor setting determines continuous measurement times. The greater the average factor is, the lower the
external interference of measured power will be obtained, which will lead to more accurate measured values.
Offset function
When power of source under test is beyond measurement range, it is required to attenuate or enlarge signal tested. At this time, actual
power value of source under test without being attenuated or amplified could be easily obtained through offset function.
In offset function, value displayed is current measured value deducting offset value set. Offset function is in operation when signal
channel is connected with power amplifier or attenuator. Therefore, offset value shall be set to negative number when connecting external
attenuator; positive value when connecting external amplifier.
Relative measurement function
When turning on relative measurement function, it will save the power value of current measurement and then display the comparative
value of each value measured with respect to power value saved. At the same time, units of comparative power value displayed will be
changed from dBm to dB and from Watt to %. As shown in Figure 10-5.
Figure 10-5 SWEEP/SETUP Menu Bar
7.3.3.
Amplitude
To obtain more accurate observation over signal tested, you may readjust amplitude setting of Analyzer according to frequency range
