Specifies the method used to perform the IM measurement.

Syntax

Namespace: NationalInstruments.RFmx.SpecAnMX

public enum RFmxSpecAnMXIMMeasurementMethod

Members

NameValueDescription
Normal0

The IM measurement acquires the spectrum using the same signal analyzer settings across frequency bands. Use this method when the fundamental tone separation is not large. Supported devices: PXIe-5644/5645/5646/5840/5841/5842/5860/5830/5831/5832, PXIe-5663/5665/5668.

DynamicRange1

The IM measurement acquires a segmented spectrum using the signal analyzer specific optimizations for different frequency bands. The spectrum is acquired in segments, one per tone or intermod frequency to be measured. The span of each acquired spectral segment is equal to the frequency separation between the two input tones, or 1 MHz, whichever is smaller.Use this method to configure the IM measurement and the signal analyzer for maximum dynamic range instead of measurement speed.Supported devices: PXIe-5665/5668.

Segmented2

Similar to the Dynamic Range method, this method also acquires a segmented spectrum, except that signal analyzer is not explicitly configured to provide maximum dynamic range. Use this method when the frequency separation of the two input tones is large and the measurement accuracy can be traded off for measurement speed.Supported devices: PXIe-5644/5645/5646/5840/5841/5842/5860/5830/5831/5832, PXIe-5663/5665/5668.