3 Spectrum Analyzer Mode
3.10 TOI Measurement
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.
Because of 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 is displayed, "Sweep
points changed, all traces cleared."
Remote Command
[:SENSe]:TOI:SWEep:POINts <integer>
[:SENSe]:TOI:SWEep:POINts?
Example
:TOI:SWE:POIN 1001
:TOI:SWE:POIN?
Dependencies Not available when Signal ID is ON in External Mixing
Neither the knob nor the step keys can be used to change this value. If it is attempted, a warning is
given
Grayed-out in measurements 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 switch to Display Off
–
Sweep Time is re-quantized
–
Any limit lines that are on will be updated
–
If "Averaging On/Off" on page 1828 is ON, averaging/hold starts over
The resolution of setting the sweep time depends on the number of points selected
Preset 1001
State Saved Saved in instrument state
Min 1
Max 100,001
Annotation On second line of annotations, in lower right corner in parenthesis behind the sweep annotation
IF Dithering
Lets you turn IF Dithering on or off. This is a technique used in unpreselected
instruments (such as Keysight’s modular instruments) to enhance the rejection of
images and internally-generated spurious signals.
1844 Spectrum Analyzer Mode User's &Programmer's Reference
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