User’s Manual MSO/UPO2000 Seri es
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frequency point at 0° phase. That is GM=0db –gain measured value.
4
：
Frequency scale is display based on start frequency and stop frequency of the scanning .
5
：
Scanning the gain result curve.
6
：
Scanning the phase result curve.
7
：
Cursor
，
please refer to chapter “cursor”.
8
：
The gain value, phase value and frequency value of the intersection of the two cursor lines with the
gain curve and the phase curve.
9
：
Phase scale is display based on the setting phase scale and phase displacement.
(1)
Operating
Operating can turn on/off bode diagram function.
(2)
Scanning Mode
Scan Mode can set single scanning or continuous scanning
(3)
Scanning Setting
Scan can set scanning parameter, which is start frequency, stop frequency, scanning point, amplitude
mode, amplitude setting, DC displacement and source impedance, as shown in Figure 13-4.
a.
Start frequency
：
Set start frequency of the scanning, the range can set to 50Hz
～
50MHz.
b.
Stop frequency
：
Set stop frequency of the scanning, the range can set to 60Hz
～
50MHz.
c.
Scanning point
：
Set the scanning point, the higher the number of points the higher the scanning
resolution. The range can set to 1
～
1000.
d.
Amplitude mode
：
Set the amplitude of scanning signal, which can be fixed amplitude or variable
amplitude.
e.
Amplitude setting
：
In fixed amplitude mode, it can only set one fixed amplitude; in variable
amplitude, signal at different frequency can set different amplitude, the range can set to 10 mV
～
3 V.
f.
DC displacement
：
Set the offset of the scanning signal, the rang can set to -1 V
～
1 V.
g.
Source impedance
：
Set source load, which can be 50Ω or high resistance.
Figure 13-4
