Remote Commands
R&S
®
FSW
1036
User Manual 1173.9411.02 ─ 43
Table 14-4: Optimization parameters in FFT mode
Optimization mode
Description
DYNamic
Optimizes the dynamic range by using the narrowest possible subspan (depending
on the RBW).
The autorange function for the internal IF gain calculation is activated to obtain the
best control range for the A/D converter.
SPEed
Optimizes the sweep rate by using the widest possible subspan (depending on the
RBW).
The autorange function for the internal IF gain calculation is deactivated. (Note: set
the reference level accordingly to optimize the control range for the A/D converter).
It is recommended that you set the
to "Auto" to optimize the sweep
rate.
AUTO
Uses a medium-sized subspan to obtain a compromise between a large dynamic
range and a fast sweep rate.
The autorange function for the internal IF gain calculation is activated to obtain the
best control range for the A/D converter.
Note: FFT mode and external mixers (R&S
FSW-B21)
The subspan optimization modes "Dynamic" and "Auto" include automatic suppression
of unwanted mixing products. Thus, when using external mixers (R&S
FSW-B21), use
the "Speed" mode to obtain similar results in FFT mode as in frequency sweep mode.
Zero span mode
For zero span measurements, the optimization mode defines the selection of the A/D
converter prefilter.
Table 14-5: Optimization parameters in zero span mode
Optimization mode
Description
DYNamic
The narrowest filter possible (depending on the RBW) is used.
SPEed
The widest filter possible (depending on the RBW) is used.
AUTO
A medium-sized prefilter is used.
Note: EMI measurements
For EMI measurements (using R&S
FSW-K54), "Dynamic" mode is not supported.
"Auto" mode always uses "Speed" optimization.
Parameters:
<Mode>
*RST:
AUTO
Example:
SWE:OPT DYN
Selects optimization for dynamic range.
Manual operation:
See
[SENSe:]SWEep[:WINDow<n>]:POINts
<SweepPoints>
This command defines the number of sweep points to analyze after a sweep.
For EMI measurements, 200001 sweep points are available.
Setting Basic Measurement Parameters
