3 Spectrum Analyzer Mode
3.7 Burst Power Measurement
Center Frequency is remembered as you go from input to input. Thus you can set a
Center Freq of 10 GHz with the RF Input selected, change to BBIQ and set a Center
Freq of 20 MHz, then switch to External Mixing and set a Center Freq of 60 GHz.
When you go back to the RF Input the Center Freq will go back to 10 GHz; back to
BBIQ and it is 20 MHz; back to External Mixing and it is 60 GHz.
See:
–
"RF Center Freq" on page 1305
–
"Ext Mix Center Freq" on page 1306
–
"I/Q Center Freq" on page 1307
–
"Center Frequency Presets" on page 1304
Remote
Command
[:SENSe]:FREQuency:CENTer <freq>
[: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 This command sets the RF, External Mixing or I/Q Center Frequency depending on the selected input:
For RF input it is equivalent to :FREQ:RF:CENT
For I/Q input it is equivalent to :FREQ:IQ:CENT
For External Mixer it is equivalent to :FREQ:EMIX:CENT
Preset and Max values are dependent on Hardware Options (5xx)
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
Preset Depends on instrument maximum frequency, mode, measurement, and selected input
See "Center Frequency Presets" on page 1304 and "RF Center Freq" on page 1305 and "Ext Mix
Center Freq" on page 1306 and "I/Q Center Freq" on page 1307
State Saved Saved in instrument state
Min/Max Depends on instrument maximum frequency, mode, measurement, and selected input
See "Center Frequency Presets" on page 1304 and "RF Center Freq" on page 1305 and "I/Q Center
Freq" on page 1307
Status Bits/OPC
dependencies
Non-overlapped
Spectrum Analyzer Mode User's &Programmer's Reference 1303
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