Keysight x-series User Manual

6 Input/Output
6.5 Corrections
6.5 Corrections
Accesses the Corrections menu, which lets you select, turn on and off, and configure
and edit Corrections. You can also select, turn on and off and configure Complex
Corrections and Corrections Groups.
Corrections arrays provide Amplitude Corrections, and can be entered by the user,
sent over SCPI, or loaded from a file. They allow you to correct the response of the
instrument for various use cases. X-Series supports eight separate Corrections
arrays, each of which can contain up to 2000 points. They can be turned on and off
individually and any or all can be on at the same time. Corrections Groups let you
load several (Amplitude) Corrections at a time into a Correction Group.
Complex Correction arrays provide both Amplitude and Phase Corrections, and can
be loaded from a file. Currently the file type supported has the extension .s2p.
Complex Corrections operate in much the same manner as Corrections - the X-
series supports eight separate Complex Corrections arrays, each of which can
contain up to 30000 points, and each Complex Correction can be turned on and off
individually and any or all can be on at the same time. Some Modes, such as
Spectrum Analyzer Mode, only support only the Amplitude (Magnitude) element of
Complex Corrections. Other Modes, such as IQ Analyzer Mode and VMA, support
both the Amplitude and Phase elements of Complex Corrections. If a Complex
Correction is turned on in a Measurement that does not support Phase, only the
Magnitude information will be used for the Correction.
Trace data is in absolute units and corrections data is in relative units. You can edit
the Corrections arrays in the Corrections editor using the “Edit Correction” dialog
(you cannot edit the Complex Corrections arrays; they can only be loaded from a
file).
In zero span measurements (such as Zero Span in the Swept SA measurement),
where the frequency is always the center frequency of the instrument, we apply the
(interpolated) correction for the center frequency to all points in the trace. In the
event where there are two correction amplitudes at the center frequency, we apply
the first one in the table.
Note that the corrections are applied as the data is taken; therefore, a trace in View
(Update Off) will not be affected by changes made to the corrections after the trace
is put in View.
The Corrections tab only appears in Modes and Measurements that support
Corrections and/or Complex Corrections. In other Modes, sending SCPI for
Corrections and/or Complex Corrections will generate a Settings Conflict message
Corrections and Complex Corrections arrays are not affected by a Preset, because
they are in the Input/Output system. They also survive shutdown and restarting of
the instrument application, which means they will survive a power cycle. Corrections
2418 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)