3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
Option SCPI Details
Log-Power (Video)
LOG
"Log-Pwr Avg (Video)" on page 384
Power (RMS)
RMS
"Pwr Avg (RMS)" on page 385
Voltage averaging
SCALar
"Voltage Avg" on page 385
Also lets you choose Auto (default); see "Auto" on page 384.
These are the averaging processes within the Swept SA measurement, all of which
are affected by this setting:
1.
Trace averaging (see Trace under Trace Type) averages signal amplitudes on a
trace-to-trace basis. When performing Trace Averaging, the equation that is
used to calculate the averaged trace depends on the average type. The average
type applies to all traces in Trace Average (it is not set on a trace-by-trace basis)
2.
Average detector (see Trace under Detector) averages signal amplitudes during
the time or frequency interval represented by a particular measurement point
3.
Noise Marker (see Marker under Marker Function) averages signal amplitudes
across measurement points to reduce variations for noisy signals
4.
VBW filtering (see BW under VBW) adds video filtering which is a form of
averaging of the video signal
Remote
Command
[:SENSe]:AVERage:TYPE LOG | RMS | SCALar
[:SENSe]:AVERage:TYPE?
Preset
LOG
Range Log-Power (Video) | Power (RMS) | Voltage
Annunciation Log-Power | Power (RMS) | Voltage
Found in the Meas Bar under Avg Type
When not in Auto, label changes to #Avg Type
Backwards
Compatibility
Notes
The following legacy parameters to the [:SENSe]:AVERage:TYPE command are aliased as shown:
Legacy Param Aliased To
LINear SCALar
VOLTage SCALar
VIDeo LOG
LPOWer LOG
POWer RMS
Auto Function
Remote Command
[:SENSe]:AVERage:TYPE:AUTO OFF | ON | 0 | 1
[:SENSe]:AVERage:TYPE:AUTO?
Preset
ON
Spectrum Analyzer Mode User's &Programmer's Reference 383
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