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User Manual 157
5.3 Freq
5.3.1 Freq & Span
In MA mode, only the center frequency can be configured.
Span cannot be set and is only used to show the equivalent channel bandwidth under the current
configuration.
Command Format [:SENSe]:FREQuency:CENTer
[:SENSe]:FREQuency:CENTer?
Instruction Sets the center frequency.
Gets the center frequency.
Parameter Type Float, unit: Hz, kHz, MHz, GHz
Parameter Range 0 Hz ~ 28 GHz
Return Float, unit: Hz
Example [:SENSe]:FREQuency:CENTer 300 MHz
5.3.2 CF Step
The frequency step is the length of using the direction keys to step when the center frequency is
set. Pay attention to the following points during use:
Changing the value of the center frequency in fixed steps can achieve the purpose of switching the
measurement channels quickly and continuously.
Command Format [:SENSe]:FREQuency:CENTer:STEP[:INCRement]
[:SENSe]:FREQuency:CENTer:STEP[:INCRement]?
Instruction Sets frequency step.
Gets frequency step.
Parameter Type Float, unit: Hz, kHz, MHz, GHz
Parameter Range 1 Hz ~ 100 MHz
Return Float, unit: Hz
Example [:SENSe]:FREQuency:CENTer:STEP[:INCRement] 20 MHz