User manual

Chapter 2 Command System RIGOL
RSA3000 Programming Guide 2-71
:FETCh:CNRatio:CNRatio?
Syntax
:FETCh:CNRatio:CNRatio?
Description
Queries the results of C/N ratio measurement.
Remarks
This command is only valid when the C/N ratio measurement in GPSA mode is enabled.
This command will select data from the latest measurement results, and then transmit the data to the
output buffer.
Return Format
The query returns the C/N ratio in scientific notation.
Example
The following query returns 8.956909000e-02.
:FETCh:CNRatio:CNRatio?
:FETCh:CNRatio:NOISe?
Syntax
:FETCh:CNRatio:NOISe?
Description
Queries the noise power.
Remarks
This command is only valid when the C/N ratio measurement in GPSA mode is enabled.
The power unit of the return value is consistent with the current Y-axis unit.
This command will select data from the latest measurement results, and then transmit the data to the
output buffer.
Return Format
The query returns the noise power in scientific notation.
Example
The following query returns -1.442294000e+01.
:FETCh:CNRatio:NOISe?