Keysight x-series Programmer's Reference

3 VMA Mode
3.5 Channel Power Measurement
Increment the Center Frequency by the value of CF Step:
:FREQ:CENT UP
Return the current value of Center Frequency:
:FREQ:CENT?
Notes Sets the RF, External Mixing or I/Q Center Frequency depending on the selected input:
–
For RF input, equivalent to :FREQ:RF:CENT
–
For I/Q input, equivalent to :FREQ:IQ:CENT
–
For External Mixer, equivalent to :FREQ:EMIX:CENT
Preset and Max values depend on Hardware Options
If no terminator (for example, MHz) is sent, the terminator Hz is used. If a terminator with unit other
than frequency is used, an invalid suffix error message is generated
Dependencies Not available in MSR, LTE-Advanced FDD/TDD and 5G NR Modes
Preset Depends on instrument maximum frequency, mode, measurement, and selected input
See "Center Frequency Presets" on page 861 and "RF Center Freq" on page 863 and "Ext Mix Center
Freq" on page 864 and "I/Q Center Freq" on page 865 and "VXT Models with Radio Heads/CIU
Frequency Range" on page 863
State Saved Saved in instrument state
Min/Max Depends on instrument maximum frequency, mode, measurement, and selected input
See "Center Frequency Presets" on page 861 and "RF Center Freq" on page 863 and "I/Q Center
Freq" on page 865 and "VXT Models with Radio Heads/CIU Frequency Range" on page 863
Annotation Center <value> appears in the lower left corner of the display
Status Bits/OPC
dependencies
Non-overlapped
Center Frequency Presets
The following table provides the Center Frequency Presets for the Spectrum
Analyzer mode, and the Max Freq, for the various frequency options:
Freq Option CF after Mode
Preset
Stop Freq after Mode
Preset
Max Freq
(can't tune
above)
503 (all but CXA) 1.805 GHz 3.6 GHz 3.7 GHz
503 (CXA) 1.505 GHz 3.0 GHz 3.08 GHz
507 (all but CXA) 3.505 GHz 7.0GHz 7.1 GHz
507 (CXA) 3.755 GHz 7.5GHz 7.58 GHz
508 (all but MXE) 1.805 GHz 3.6GHz 8.5 GHz
508 (MXE) 4.205 GHz 8.4GHz 8.5 GHz
513 6.805 GHz 13.6GHz 13.8 GHz
861 Vector Modulation 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)