Analog Modulation VI Attributes for IF/NI-SCOPE

LabView Analog Modulation

Analog Modulation VI Attributes for IF/NI-SCOPE

Modulation VI attributes store information related to the downconversion process, carrier frequency, and VI references used by the processing VIs. Call MT Get Attributes to view all public attribute settings. Set read/write attributes by calling MT Set Attributes.

The following table describes carrier and receiver attributes.

Carrier Attributes

Attribute Cluster Name Access Data Type Default Value Description
carrier.frequency read-only double
(unconfigured)
Specifies the user-requested carrier frequency in Hz. This value may be coerced based on hardware settings and downconversion specifications.

Receiver Attributes

Attribute Cluster Name Access Data Type Default Value Description
receiver.handles.
niScope handle
read-only niscope instrument handle null handle Specifies the NI-SCOPE instrument handle returned by the NI-SCOPE Initialize VI.
receiver.
data format
read-only enum{real, complex modulated (array),
complex modulated (interleaved)}
real Specifies the data format returned by the digitizer module.
receiver.
auto suppress SW IQ
read/write enum{off, on} off Specifies whether to suppress the software I/Q processing when the digitizer module onboard digital downconverter (DDC) is used. When this attribute is set to ON and the DDC is used, the Convert IF to IQ VI does not apply any additional processing to the data returned from the niScope Read or niScope Fetch VIs. When the DDC is not used and/or this attribute is OFF, the Convert IF to IQ VI always applies a software filter to the data from the NI-SCOPE acquisition VI.

Refer to the NI RF Vector Signal Analyzers Help, available at Start»All Programs»National Instruments»NI-RFSA, for more information about DDC use.
receiver.
bandwidth
read-only double

(unconfigured)
Specifies the user-requested bandwidth. This value may be coerced based on hardware settings and downconversion specifications.