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Remote Commands
R&S
®
FPL1000
763
User Manual 1178.3370.02 ─ 11
Example:
SWE:TIME 1s
SWE:DUR?
Reply:
27.9734842578
Usage:
Query only
Manual operation:
See
See
"Data capturing takes too long"
[SENSe:]SWEep:FFTSubspan?
Returns the number of FFT subspans required to cover the entire measurement range
(read-only). See also
Only available in FFT sweep mode in the Spectrum application, and not for SEM,
ACLR, or Spurious emissions measurements.
Return values:
<NoOfPartialSpans> integer
Usage:
Query only
Manual operation:
See
[SENSe:]SWEep:OPTimize
<Mode>
In FFT mode, several FFT analysis steps are required to cover the entire measurement
span. The span which is covered by one FFT analysis step is called
subspan
. The sub-
span cannot be defined directly, but it can be optimized according to measurement
requirements.
Table 10-4: Optimization parameters in FFT mode
Optimization mode
Description
DYNamic
Optimizes the dynamic range by using the narrowest possible subspan (depending
on the RBW).
SPEed
Optimizes the sweep rate by using the widest possible subspan (depending on the
RBW).
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.
Zero span mode
For zero span measurements, the optimization mode defines the selection of the A/D
converter prefilter.
Setting Basic Spectrum RF Measurement Parameters