Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.8 Spurious Emissions Measurement
Remote Command
[:SENSe]:FREQuency:CENTer:STEP[:INCRement] <freq>
[:SENSe]:FREQuency:CENTer:STEP[:INCRement]?
Example Increase the current center frequency value by 500 MHz:
:FREQ:CENT:STEP 500 MHz
:FREQ:CENT UP
Notes Preset and Max values depend on Hardware Options
Dependencies Not available in MSR, LTE-A FDD/TDD and 5G NR Modes
If the electronic/soft attenuator is enabled, any attempt to change the value of the center frequency
>3.6 GHz by pressing the Up-arrow key, fails and results in an advisory message. If the equivalent
SCPI command is sent, this same message is generated as part of a “-221, Settings conflict” warning
Couplings When auto-coupled, CF Step size is set to 10% of Range
Preset Auto
State Saved Saved in instrument state
Min/Max –/+ (the maximum frequency of the instrument)
That is, 27 GHz max freq instrument has a CF Step range of +/- 27 GHz. Note that this is the maximum
frequency, given the current settings of the instrument, so in External Mixing, for example, it is the
maximum frequency of the current mixer band
Status Bits/OPC
dependencies
non-overlapped
Auto Function
Remote
Command
[:SENSe]:FREQuency:CENTer:STEP:AUTO OFF | ON | 0 | 1
[:SENSe]:FREQuency:CENTer:STEP:AUTO?
Example
:FREQ:CENT:STEP:AUTO ON
:FREQ:CENT:STEP:AUTO?
Preset
ON
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 Mode Preset, or set the frequency offset to 0Hz.
For more details, see "More Information" on page 1422
Remote Command
[:SENSe]:FREQuency:OFFSet <freq>
[:SENSe]:FREQuency:OFFSet?
Example
:FREQ:OFFS 10 MHz
Spectrum Analyzer Mode User's &Programmer's Reference 1421

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)