Keysight x-series Programmer's Reference

3 VMA Mode
3.11 Phase and Amplitude vs Time Measurement
[:SENSe]:FREQuency:CENTer?
Example
:FREQ:CENT 50 MHz
sets Center Frequency to 50 MHz
:FREQ:CENT UP
increments the Center Frequency by the value of CF Step
:FREQ:CENT?
returns the current value of Center Frequency
Notes Preset and Max values are dependent on Hardware Options (5xx), port selections or other aspects of
the particular instrument in use
If no terminator (e.g., 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
Couplings For E7760A, if the Input Port selected is a mmWave port, and option RF4 is not present, the frequency
of the instrument and source must be the same. Thus, changing this instrument frequency will also
update the source frequency. If option RF4 is present, the frequency of the instrument and source are
independent
Preset Depends on instrument’s maximum frequency, mode, measurement, and selected input
See "Center Frequency Presets" on page 1815 , "RF Center Freq" on page 1817, "Ext Mix Center Freq"
on page 1818, and "I/Q Center Freq" on page 1819
State Saved Saved in instrument state
Min Depends on instrument’s maximum frequency, mode, measurement, and selected input
See "Center Frequency Presets" on page 1815 , "RF Center Freq" on page 1817, "Ext Mix Center Freq"
on page 1818, and "I/Q Center Freq" on page 1819
Max Depends on instrument maximum frequency, mode, measurement, and selected input
See "Center Frequency Presets" on page 1815 , "RF Center Freq" on page 1817, "Ext Mix Center Freq"
on page 1818, and "I/Q Center Freq" on page 1819
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
1815 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)