Good Will Instrument GDS-3000A Series, Руководство пользователя

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GDS-3000A series User Manual
280
Panel operation
1. When in Analysis mode, press the
Plot Bode Plot button to enter the
scale bode plot menu.
2. There are four settings which can be adjusted:
Gain Scale , Gain Offset , Phase Scale , and Phase
Offset, respectively. Press the Autoscale button
to automatically preset these parameters
suitable for viewing the displayed traces.
Gain Scale
1. Press the Gain Scale from the side
menu and use the VARIABLE
knob to adjust the value.
Range 5, 10, 15, 20dB
Gain Offset
1. Press the Gain Offset from the side
menu and use the VARIABLE
knob to adjust the value.
Range (-300+4*Gain Scale)~
(300-4*Gain Scale) dB
Phase Scale
1. Press the Phase Scale from the side
menu and use the VARIABLE
knob to adjust the value.
Range
15
°
, 30
°
, 45
°
, 60
°
Phase Offset
1. Press the Phase Offset from the
side menu and use the VARIABLE
knob to adjust the value.
Range (-720+4*Phase Scale)~
(720-4*Phase Scale) degrees
Autoscale
1. Alternatively, users can press the
Autoscale from the side menu to
have the system automatically
adjust these parameter to fit in all
displayed traces.