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Keysight x-series Programmer's Reference

Keysight x-series
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3 VMA Mode
3.9 SEM Measurement
: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 are dependent 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 the 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 1466, and "RF Center Freq" on page 1468,, "Ext Mix Center
Freq" on page 1469, "I/Q Center Freq" on page 1470 and "VXT Models with Radio Heads/CIU
Frequency Range" on page 1468
State Saved Saved in instrument state
Min/Max Depends on instrument maximum frequency, Mode, measurement, and selected input
See "Center Frequency Presets" on page 1466, "RF Center Freq" on page 1468, "I/Q Center Freq" on
page 1470 and "VXT Models with Radio Heads/CIU Frequency Range" on page 1468
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
526 (except CXA and
MXE)
13.255 GHz 26.5 GHz 27.0 GHz*
526 (CXA) 13.255 GHz 26.5GHz 26.55 GHz
526 (MXE) 1.805 GHz 3.6GHz 27.0 GHz
Vector Modulation Analyzer Mode User's &Programmer's Reference 1466

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Keysight x-series Specifications

General IconGeneral
Analysis BandwidthUp to 1 GHz (depending on model)
Real-Time BandwidthUp to 1 GHz (depending on model)
Form FactorBenchtop
ConnectivityLAN, USB, GPIB
Resolution Bandwidth1 Hz to 10 MHz (depending on model)

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