Rigol DSA1000A Series, Руководство по программированию

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RIGOL
Chapter 2 Command Systems
Programming Guide for DSA1000A series 2-78
Syntax [:SENSe]:FREQuency:CENTer:STEP[:INCRement] <freq>
[:SENSe]:FREQuency:CENTer:STEP[:INCRement]?
Function Sets the CF step, the default unit is Hz, such as
:FREQ:CENT:STEP 100000 or :FREQ:CENT:STEP 100KHZ
The query returns “100000”.
Explanations <freq> ranges from 1Hz to 3GHz.
Default Span/10
Front Panel FREQ, CF Step
22. [:SENSe]:FREQuency:CENTer:UP
Syntax [:SENSe]:FREQuency:CENTer:UP
Function Increases the center frequency by the specified CF step.
Front Panel FREQ, Channel, Forward
23. [:SENSe]:FREQuency:CENTer:DOWN
Syntax [:SENSe]:FREQuency:CENTer:DOWN
Function Decreases the center frequency by the specified CF step.
Front Panel FREQ, Channel, Reverse
24. [:SENSe]:FREQuency:SPAN
Syntax [:SENSe]:FREQuency:SPAN <freq>
[:SENSe]:FREQuency:SPAN?
Function Sets the span, the default unit is Hz, such as
:FREQ:SPAN 20000000 or :FREQ:SPAN 20MHZ
The query returns “200000000”.
Explanations

<freq> ranges from 0 Hz to 3 GHz.

When the span is set to 0, the analyzer goes into the Zero-span
mode, the X-axis changes from Frequency into Time and only the
signal that has the same freqeuency as the center frequency
would be displayed.
Default 3 GHz
Front Panel SPAN, Span
25. [:SENSe]:FREQuency:SPAN:FULL
Syntax [:SENSe]:FREQuency:SPAN:FULL
Function Sets the span to the maximun.
Front Panel SPAN, Full Span