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Fetches a cluster of complex, double-precision floating-point data from the specified channel. Modulation Toolkit nodes use the complex, double-precision floating-point cluster data type. Use this node in applications that use Modulation Toolkit nodes.

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session handle

Your instrument session.

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number of samples

Number of samples to fetch from the acquisition channel. For finite acquisitions, if you specify a value of -1, NI-USRP returns all the remaining samples. NI-USRP returns the samples when the requested number of samples is retrieved from the device or when the timeout is exceeded, whichever happens first.

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timeout

The time to wait, in seconds, before returning an error if the requested number of samples have not been acquired.

Default: 10

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error in (no error)

Error conditions that occur before this node runs. This input provides standard error in functionality.

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status

A Boolean that is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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code

The error or warning code. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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source

The origin of the error or warning. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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channel list

The channel(s) from which to fetch the data.

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session handle out

A reference to your instrument session to be passed to the next node.

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data

The received baseband samples as complex, double-precision floating-point data in a cluster, which also includes sampling information.

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t0

Trigger (start) time of the acquired Y array.

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dt

Time between values in the Y array.

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Y

The complex-valued baseband waveform. The real and imaginary parts of this complex data array correspond to the in-phase (I) and quadrature-phase (Q) data, respectively.

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timestamp

The timestamp of the first receive (Rx) sample returned and the time associated with the first sample of the waveform, according to the onboard device timer.

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whole seconds

The integer number of seconds for the time associated with the first sample of the waveform, according to the onboard device timer.

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fractional seconds

The double-precision, floating-point value representing the remaining fraction of a second for the time associated with the first sample of the waveform, according to the onboard device timer.

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error out

Error information. This output provides standard error out functionality.

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status

A Boolean that is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. Right-click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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code

The error or warning code. Right-click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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source

The origin of the error or warning. Right-click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.