Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
:CALCulate:MARKer[1]|2|…|4:X:POSition:SPAN <param>
:CALCulate:MARKer[1]|2|…|4:X:POSition:SPAN?
:CALCulate:MARKer[1]|2|…|4:X:POSition:STARt <param>
:CALCulate:MARKer[1]|2|…|4:X:POSition:STARt?
:CALCulate:MARKer[1]|2|…|4:X:POSition:STOP <param>
:CALCulate:MARKer[1]|2|…|4:X:POSition:STOP?
They are aliased very similarly to the non-position commands (above) however a
translation to/from trace points (buckets) is also performed:
Old command Aliased to
:CALCulate:MARKer
[1]|2|…|4:X:POSition:CENTer
:CALCulate:MARKer
[1]|2|…|4:X:POSition
:CALCulate:MARKer
[1]|2|…|4:X:POSition:SPAN
:CALCulate:MARKer
[1]|2|…|4:FUNC:BAND:SPAN
:CALCulate:MARKer
[1]|2|…|4:X:POSition:STARt
:CALCulate:MARKer
[1]|2|…|4:FUNC:BAND:LEFT
:CALCulate:MARKer
[1]|2|…|4:X:POSition:STOP
:CALCulate:MARKer
[1]|2|…|4:FUNC:BAND:RIGHt
In each case but the first (:X:POSition:CENTer),the instrument first converts the
specified value in trace points to the current X Axis Scale Units (for example,
frequency or time) of the trace upon which the marker resides. Then, that value is
used in the alias command to set the desired value.
The query form of the command returns the marker function span in trace points
(buckets) by translating back based on the X Axis Scale settings at the time the
query is sent.
NOTE
The value in Trace Points is translated into the current X Axis Scale units for the
purpose of setting the value of the marker. However, the marker’s span value,
LEFT value, or RIGHt value in X Axis Scale Units, not trace points, is preserved if
a change is made to the X Axis scale settings. For example, if you use this
command to set a marker function span of 500 buckets, which happens at that
time to correspond to 13 GHz, and then you change the instrument’s Start Freq
so that 500 buckets is no longer 13 GHz, the span will stay at 13 GHz, not at 500
buckets! This is important to realize as it differs from the legacy behavior.
NOTE
The UP/DOWN parameters will increment/decrement by one bucket. For this the
instrument performs a conversion to buckets and back.
350 Spectrum Analyzer Mode User's &Programmer's Reference

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)