Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.9 Occupied BW Measurement
Points
Sets the number of points taken per sweep, and displayed in the traces. The current
value of points is displayed parenthetically, next to the sweep time in the lower-right
corner of the display. Using more points provides greater resolution. Using fewer
points compacts the data and decreases the time required to access a trace over
the remote interface.
Increasing the number of points does not increase the sweep time. However, it can
slightly impact the trace processing time and therefore the overall measurement
speed. Decreasing the number of points does not decrease the sweep time, but it
may speed up the measurement, depending on the other sweep settings (for
example, in FFT sweeps). Fewer points will always speed up the I/O.
Due to minimum sweep rate limitations of the hardware, the minimum sweep time
available to the user will increase above its normal value of 1 ms as the number of
sweep points increases above 15001.
Changing the number of sweep points has several effects on the instrument. Since
markers are read at the point location, the marker reading may change. The sweep
time resolution will change. Trace data for all the traces will be cleared and, if
Sweep is in Cont, a new trace taken. If any trace is in average or hold, the averaging
starts over.
Due to sweep time quantization issues, the knob and up/down keys cannot be used
to adjust the number of points.
When in a split-screen display, each window may have its own value for points.
When sweep Points is changed, an informational message "Sweep points changed,
all traces cleared" is displayed, and in 5GNR Mode, Auto Sweep Points is set to OFF
(0).
Remote Command
[:SENSe]:OBWidth:SWEep:POINts <integer>
[:SENSe]:OBWidth:SWEep:POINts?
Example
:OBW:SWE:POIN 501
:OBW:SWE:POIN?
Dependencies Not available when Signal ID is set to On in External Mixing
Neither the knob nor the step keys can be used to change this value. If it is tried, a warning is given
Not displayed in Modes that do not support Swept
Couplings Whenever the number of sweep points change:
–
All trace data is erased
–
Any traces with Update Off will also go to Display OffSweep time is re-quantized
–
Any limit lines that are on will be updated
Short Range Comms & IoT Mode User's &Programmer's Reference 1325

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)