Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.4 HRP UWB Demodulation Measurement
:FREQ:CENT?
Couplings Coupled with "Channel" on page 487
Setting Channel sets Center Frequency to the value corresponding to that channel
Setting Center Frequency also changes the Channel value. If the Center Frequency value entered does
not exactly correlate with a channel, the key label changes to display the closest channel number to
the entered frequency, along with a > or < symbol indicating whether the frequency is above or below
that channel
Preset 1 GHz
State Saved Saved in instrument state
Min Depends on instrument’s minimum frequency and the 10 Hz minimum span
If the knob or step keys are being used, depends on the value of the other three interdependent
parameters
Max Depends on the instrument’s maximum frequency and the 10 Hz minimum span
If the knob or step keys are being used, depends on the value of the other three interdependent
parameters
Annotation Center <value> appears in the lower left corner of the display
Status Bits/OPC
dependencies
Non-overlapped
CF Step
Modifies the step size of "Center Frequency" on page 487, start frequency, and stop
frequency. The step size is useful for finding the harmonics and the sidebands
beyond the current frequency span of the instrument.
Remote Command
[:SENSe]:FREQuency:CENTer:STEP[:INCRement] <freq>
[:SENSe]:FREQuency:CENTer:STEP[:INCRement]?
Example
:FREQ:CENT:STEP 500 MHz
:FREQ:CENT UP
Increases the current center frequency value by 500 MHz
:FREQ:CENT:STEP?
Notes Preset and Max values depend on Hardware Options
Dependencies Freq Offset is not available in External Mixing. In this case the Freq Offset control is grayed-out and
shows a value of zero. It will once again be available, and show the previously set value, when you
return to the RF Input
Freq Offset is not available when the frequency scale is set to Log, or segmented sweep is enabled
Span, RBW, Center frequency
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
488 Short Range Comms & IoT 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)