User manual

Chapter 2 Front Panel Operation RIGOL
User’s Guide for DSA700 Series
2-95
Coupl Param
Set all the related parameters automatically according to the coupling relationship.
Definitions of the auto coupling parameters:
1. CF Step
This parameter maintains a coupling relationship with RBW (or span) in zero
span (or non-zero span) mode. Refer to "CF Step" for more details.
2. Reference level
The reference level, input attenuation, preamplifier and maximum mixing
level maintain coupling relationships. Refer to the introduction of equation
(2-3) in "Ref Level" for more details.
3. Input Attenuation
The input attenuation, reference level, preamplifier and maximum mixing
level maintain coupling relationships. Refer to the introduction of equation
(2-3) in "Ref Level" for more details.
4. RBW
This parameter maintains a coupling relationship with the span. Refer to "RBW"
for more details.
5. VBW
This parameter maintains a coupling relationship with RBW. Refer to "VBW"
for more details.
6. Sweep Time
The sweep time, RBW, VBW and span maintain coupling relationships. Refer
to "BW/Det" for more details.