Specifies whether the amplitude of the frequency bins, used in measurements, is corrected for external attenuation at the RF center frequency, or at the individual frequency bins. Use the RFmxInstr Configure External Attenuation Table VI to configure the external attenuation table.

You do not need to use a selector string to configure or read this property for the default signal instance. Refer to the Selector Strings topic for information about the string syntax for named signals.

The default value is RF Center Frequency.

Remarks

The following table lists the characteristics of this property.

Short Name SEM Amplitude Correction Type
Data type ci32.png
Permissions Read/Write
High-level VIs N/A
Resettable Yes
RF Center Frequency 0

All the frequency bins in the spectrum are compensated with a single external attenuation value that corresponds to the RF center frequency.

Spectrum Frequency Bin 1

An individual frequency bin in the spectrum is compensated with the external attenuation value corresponding to that frequency.