3 Spectrum Analyzer Mode
3.8 Spurious Emissions Measurement
when you set Global Center Freq to ON, it applies to all Modes that support Global
settings.
Other controls (for example, Extend Low Band) are actually set in this menu, but
apply to all Modes.
Global Center Freq
The software maintains a Mode Global value called Global Center Freq.
When Global Center Freq is switched ON, the current Mode’s center frequency is
copied into the Global Center Frequency, and from then on all Modes that support
global settings use the Global Center Frequency, so you can switch between any of
these Modes and the Center Frequency remains unchanged.
Adjusting the Center Frequency of any Mode that supports Global Settings, while
Global Center Freq is ON, modifies the Global Center Freq.
When Global Center Freq is switched OFF, the Center Frequency of the current
Mode is unchanged, but now the Center Frequency of each Mode is once again
independent.
When Mode Preset is pressed while Global Center Freq is ON, the Global Center Freq
is preset to the preset Center Frequency of the current Mode.
This function resets to OFF when "Restore Defaults" on page 2037 is pressed, or
when System, Restore Defaults, All Modes is pressed.
Remote
Command
:INSTrument:COUPle:FREQuency:CENTer ALL | NONE
:INSTrument:COUPle:FREQuency:CENTer?
Example
:INST:COUP:FREQ:CENT ALL
:INST:COUP:FREQ:CENT?
Preset Set to OFF on Global Settings, Restore Defaults and System, Restore Defaults, All Modes
Range
ALL|NONE
Preset
OFF
Backwards Compatibility
SCPI
:GLOBal:FREQuency:CENTer[:STATe] 1 | 0 | ON | OFF
:GLOBal:FREQuency:CENTer[:STATe]?
Global EMC Std
When this control is switched ON, the current Mode’s EMC Std is copied into the
Global EMC Std, and from then on all Modes that support global settings use the
Global EMC Std, so you can switch between any of these Modes and the EMC Std
remains unchanged.
Spectrum Analyzer Mode User's &Programmer's Reference 1491
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