SIGLENT SVA1000X Series, Руководство пользователя, Страница: 86 / 140

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68 SVA1000X User Manual
Table 3-6 Ref Level
Parameter Explanation
Default 0 dB
Range -1000 dB ~ 1000 dB
Unit dB
Knob Step 1 dB
Direction Key Step 10 dB
3.1.3.5 Ref Position
The vertical position of the currently selected trace in the screen can be adjusted by adjusting the
reference position.
When set to 5, the reference level of the trace is in the middle of the screen, 0 is at the bottom of the
screen grid, and 10 is at the top of the screen grid.
Table 3-7 Ref Position
Parameter Explanation
Default 5 Div
Range 0 Div ~ 10 Div
Unit Div
Knob Step 1 Div
Direction Key Step 1 Div
3.2 Sweep and Functions
3.2.1 BW
3.2.1.1 IFBW
The VNA converts the received signal from its source to a lower intermediate frequency (IF).Reducing
the IF receiver bandwidth reduces the effect of random noise on a measurement.However, narrower IF
bandwidths cause longer sweep times.
The default value 10 kHz.
3.2.2 Trace
3.2.2.1 Select Trace
Select the trace in order to set the corresponding trace parameters. You can also select the trace by
clicking on the trace mark displayed in the left status bar of the screen. By default, track 1 is selected
and opened.