RIGOL
Chapter 3 Functions of the Front Panel of RTSA
3-6
RSA3000E User Guide
Sweep and Function Settings
BW
Press BW to enter the bandwidth setting menu. In this menu, you can select the
filter type and RBW.
RBW
In RTSA mode, RBW selects from a pre-calculated selection of RBW values, which are
computed based on the following formula: RBW = SPAN/Ratio. Wherein, Ratio is the
Span/RBW ratio determined by the selected filter type.
In RTSA mode, there are 6 filter types available for you to choose. They correspond
to 6 RBW values, namely RBW1 through RBW6. You can select a proper RBW value
according to your needs.
Note: When the filter type is set to "Rectangular", RBW is automatically set to
"RBW1", and "RBW2 through RBW6" are invalid.
Filter Type Ratio1
1,024
point
Ratio2
521
point
Ratio3
256
point
Ratio4
128
point
Ratio5
64 point
Ratio6
32 point
Gaussian
404.761
205.938
101.190
50.595
25.298
12.649
Flattop
212.187 107.958
53.047
26.523
13.262
6.631
Blackman-
Harris
399.131 203.074
99.783
49.891
24.946
12.473
Rectangular 800.782 407.429
200.196
100.098
50.049
25.024
Hanning
534.376 271.885
133.594
66.797
33.399
16.699
Kaiser
398.176 201.588
99.544
49.772
24.886
12.443
RBW Auto
Sets the coupling mode of RBW to be "Auto" or "Manual".
Remarks:
When you select "Auto", RBW is in auto coupling state.
When you select "Manual" or directly set the RBW value, the coupling mode can
be changed.