Keysight E6680A - Page 199

3 IQ Analyzer (Basic) Mode
3.1 Complex Spectrum Measurement
Tracking Generator Frequency Limits (CXA only)
Tracking
Generator
Option
Min Freq
(clips to this freq when turn
TG on and can’t tune below
while TG on)
If above this Freq, Stop Freq
clipped to this Freq when TG
turned on
Max Freq
(can't tune
above)
while TG on
T03 9 kHz 3.0 GHz 3.08 GHz
T06 9 kHz 6.0GHz 6.05 GHz
Tracking Generator Frequency Limits(CXA-m only)
Tracking
Generator
Option
Min Freq
(clips to this freq when turn
TG on and can’t tune below
while TG on)
If above this Freq, Stop Freq
clipped to this Freq when TG
turned on
Max Freq
(can't tune
above)
while TG on
T03 2 MHz 3.08 GHz 3.08 GHz
T07 2 MHz 7.575 GHz 7.575 GHz
T13 2 MHz 13.8 GHz 13.8 GHz
T26 2 MHz 26.55 GHz 26.55 GHz
RF Center Frequency
Specifies the RF Center Frequency. Sets the center frequency to use when the RF
input is selected, even if the RF input is not the input that is selected at the time the
command is sent. Note that Center Frequency in the Frequency menu on the front
panel always applies to the currently selected input.
Remote Command
[:SENSe]:FREQuency:RF:CENTer <freq>
[:SENSe]:FREQuency:RF:CENTer?
Example
:FREQ:RF:CENT 30 MHz
:FREQ:RF:CENT?
Notes This command is the same in all Modes, but the parameter is Measurement Global. So, the value is
independent in each Mode and common across all the measurements in the Mode
Dependencies If the electronic/soft attenuator is enabled, any attempt to set Center Frequency such that the Stop
Frequency would be >3.6GHz 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
If Source Mode is set to Tracking, and the Max or Min Center Frequency is therefore limited by the
limits of the source, a warning message is generated, “Data out of range; clipped to source max/min” if
these limits are exceeded. Note that for an external source, these limits can be affected by the settings
of Source Numerator, Source Denominator, and Power Sweep
Preset See "Center Frequency Presets" on page 197
State Saved Saved in instrument state
199 IQ Analyzer Mode User's &Programmer's Reference