Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
Freq Offset
Lets you set a frequency offset value to account for frequency conversions outside of
the instrument. This value is added to the display readout of the marker frequency,
center frequency, start frequency, stop frequency, and all other absolute frequency
settings in the instrument including frequency count. When a frequency offset is
entered, the value appears below the center of the graticule. To eliminate an offset,
perform a Mode Preset, or set Freq Offset to 0Hz.
For further details, see "More Information" on page 301.
Remote Command
[:SENSe]:FREQuency:OFFSet <freq>
[:SENSe]:FREQuency:OFFSet?
Example
:FREQ:OFFS 10 MHz
:FREQ:OFFS?
Notes Preset and Max values depend on Hardware Options
Dependencies Not available in External Mixing. In this case, the Freq Offset control is grayed-out and shows a value
of zero. However, the value of CF Offset that was set for the RF Input is retained and restored when
you switch back to the RF Input
Not available when the frequency scale is set to LOG, or when segmented sweep is enabled
Preset See Center Frequency Presets in "Center Frequency" on page 281
State Saved Saved in instrument state
Min/Max –/+500 GHz
Annotation If Frequency Offset is not zero, “Freq Offset <value>” appears on the upper line of the annotation,
below the graticule, in the center
Status Bits/OPC
dependencies
Non-overlapped
Backwards
Compatibility SCPI
:DISPlay:WINDow[1]:TRACe:X[:SCALe]:OFFSet
Backwards
Compatibility
Notes
The DISPlay version of the command is in the instrument for compatibility across platforms and is
not recommended for new development
More Information
This command does not affect any bandwidths or the settings of relative frequency
parameters such as delta markers or span. It does not affect the current hardware
settings of the instrument, but only the displayed frequency values. Entering an
offset does not affect the trace position or display, just the value of the start and
stop frequency and the values represented by the trace data. The frequency values
of exported trace data, queried trace data, markers, trace data used in calculations
such as N dB points, trace math, etc., are all affected by Freq Offset. Changing the
offset, even on a trace that is not updating will immediately change all of the above,
Spectrum Analyzer Mode User's &Programmer's Reference 301

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)