3 Short-Range Comms & IoT Mode
3.6 Power Stat CCDF Measurement
Preset
N9041B
OFF
N9042B+V3050A
ON
M9410A/11A
ON
State Saved Saved in instrument state
SW Preselection Type
Specifies the algorithm used for software preselection.
Two hidden sweeps occur in succession. The second sweep is offset in LO frequency
by 2 * IF / N. For each point in each trace, the smaller amplitude from the two traces
is taken and placed in that point in the selected trace. The Peak detector is auto-
selected to improve the image suppression effectiveness. Responses of each trace
that lie on top of one another will remain and are valid signals. Other signals are
images, which are suppressed. The action of taking the smaller of the two traces will
make the average noise level lower in all points that do not have an image, thus
reducing the accuracy of the measurement of noise and noise-like signals.
–
NORMal - mathematically removes all image and multiple responses of signals
present at the input
–
ADVanced - any trace processing (such as “max hold” or trace averaging) is
performed on the points of both candidate traces before the “select minimum”
operation occurs. This form of processing works better for non-stationary
signals, such as pulsed-RF signals
Remote Command
[:SENSe]:POWer[:RF]:SWPResel NORMal | ADVanced
[:SENSe]:POWer[:RF]:SWPResel?
Example
:POW:SWPR NORM
:POW:SWPR?
Dependencies Only appears in N9041B and N9042B+V3050A. Only appears in measurements that use the Swept
method
Grayed-out when "Software Preselection" on page 1669 is OFF. The grayout message is “Unavailable
unless SW Presel enabled”
Preset
N9041B
ADVanced
N9042B+V3050A
NORMal
State Saved Saved in instrument state
Short Range Comms & IoT Mode User's &Programmer's Reference 731
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