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SIGLENT
98 User Manual
● Current signal amplitude range that can be displayed:
The Minimum range: Reference level –10 × current scale value.
The Maximum range: The reference level.
Table 6-9 Scale/Div
Parameter
Explanation
Default
10 dB
Range
0.1 dB ~ 20 dB
Unit
dB
Knob Step
Step=1 dB
Direction Key Step
1-2-5 sequence
Related to
Scale Type
6.2 Sweep and Functions
6.2.1 BW
Set the RBW (Resolution Bandwidth) and filter type. Resolution Bandwidth
Set the resolution bandwidth in order to distinguish between signals which have frequency components
that are near one another.
● Reducing the RBW will increase the frequency resolution.
● RBW varies with the span (non-zero span) in Auto RBW mode.
● Under under the rectangular window filter, the RBW is fixed at 49.938kHz.
RBW value range is related to filter type, please refer to filter type section for details.
Table 6-10 RBW
Parameter
Explanation
Kaiser
100.431kHz ~3.314MHz
Hanning
74.98kHz ~2.47MHz
Flattop
188.462kHz ~ 6.22MHz
Gaussian
98.797 kHz ~ 3.26MHz
Blackman-Harris
100.19kHz~ 3.31MHz
Rectangular
49.938KHz
6.2.2 Trace
The sweep signal is displayed as a trace on the screen.
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