Keysight x-series User Manual

3 Spectrum Analyzer Mode
3.10 TOI Measurement
Notes Preset and Max values depend on Hardware Options
Dependencies If the electronic/soft attenuator is enabled, any attempt to change the value of 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 the span
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 a Mode Preset or set the frequency offset to 0Hz.
See "More Information" on page 1827.
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
Preset See "Center Frequency Presets" on page 1819
1826 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)