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SIGLENT
User Manual 119
● In Log scale type, the Y-axis denotes the logarithmic coordinate. The value shown at the top of the
grid is the reference level and each grid represent the scale value. The unit of Y-axis will
automatically switch to the default unit (dBm) in Log scale type when the scale type is changed
from Lin to Log.
● In Lin scale type, the Y-axis denotes the liner coordinate; the values shown at the top of the grid
and the bottom of the grid are the reference level and 0 V. The scale setting function is invalid. The
unit of Y-axis will automatically switch to the default unit (Volts) in Lin scale type when the scale
type is charged from Log to Lin.
7.2.3.7 Ref Offset
Assign an offset to the reference level to compensate for gains or losses generated between the device
under measurement and the analyzer.
The change of this value changes both the reference level readout and the amplitude readout of the
marker; but does not impact the position of traces on the screen.
Table 7-9 Ref Offset
7.3 Sweep and Functions
7.3.1 BW
Set the Resolution BW of the analyzer. Any change of this parameter will stop the running sequence.
7.3.1.1 RBW(Scan)
Set the RBW of scan.
● RBW can only be set to 200 Hz, 9 kHz, 120 kHz and 1 MHz with a 6dB shape factor.
● Set up RBW will affect sweep points for scanning. For more detail, please refer to Sweep -> Sweep
Points.
Table 7-10 RBW
Parameter
Explanation
Default
120 kHz
Parameter
Explanation
Default
0 dB
Range
-100 dB ~ 100 dB
Unit
dB
Knob Step
Not support
Direction Key Step
Not support
Related to
Ref Level
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