niRFSA Configure Spectrum Frequency

NI RF Vector Signal Analyzers

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niRFSA Configure Spectrum Frequency

Configures the hardware for a spectrum frequency acquisition.

Note If you configure the spectrum span ( stop frequency - start frequency) to a value larger than 20 MHz, RFSA performs multiple acquisitions and combines them into a spectrum of the size you requested.

Use the pull-down menu to select an instance of this VI.

niRFSA Configure Spectrum Frequency Center Span

Configures the span and center frequency of a spectrum acquisition. An acquisition consists of a span of data surrounding the center frequency.

instrument handle identifies your instrument session. instrument handle is obtained from the niRFSA Initialize or the niRFSA Initialize With Options VIs and identifies a particular instrument session.

frequency specifies the center frequency in a spectrum acquisition. The value is expressed in Hertz.

span specifies the span of a spectrum acquisition. The value is expressed in Hertz.

error in (no error) describes error conditions that occur before this VI runs.

	status is TRUE (X) if an error occurred before this VI ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI ran. The default is FALSE.
	code is the error or warning code. The default is 0. If status is TRUE, code is a negative error code. If status is FALSE, code is 0 or a warning code.
	source describes the origin of the error or warning and is, in most cases, the name of the VI that produced the error or warning. The default is an empty string.

instrument handle out passes a reference to your instrument session to the next VI. instrument handle is obtained from the niRFSA Initialize or the niRFSA Initialize With Options VIs and identifies a particular instrument session.

error out contains error information. If error in indicates that an error occurred before this VI ran, error out contains the same error information. Otherwise, it describes the error status that this VI produces.

	status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
	code the error or warning code. If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
	source describes the origin of the error or warning and is, in most cases, the name of the VI that produced the error or warning.

niRFSA Configure Spectrum Frequency Start Stop

Configures the start and stop frequency of a spectrum acquisition.

start frequency specifies the lower band of a span of frequencies.

stop frequency specifies the upper band of a span of frequencies.

error in (no error) describes error conditions that occur before this VI runs.

	status is TRUE (X) if an error occurred before this VI ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI ran. The default is FALSE.
	code is the error or warning code. The default is 0. If status is TRUE, code is a negative error code. If status is FALSE, code is 0 or a warning code.
	source describes the origin of the error or warning and is, in most cases, the name of the VI that produced the error or warning. The default is an empty string.

	status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
	code the error or warning code. If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
	source describes the origin of the error or warning and is, in most cases, the name of the VI that produced the error or warning.

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