Configures the offset RBW and the offset RBW filter type.
Use "offset<n>" or "subblock<n>" or "subblock<n>/offset<n>" as the selector string to configure this function.

Syntax

int32 __stdcall RFmxNR_SEMCfgOffsetRBWFilter(niRFmxInstrHandle instrumentHandle, char selectorString[], float64 offsetRBW, int32 offsetRBWFilterType)

Parameters

NameDirectionTypeDescription
instrumentHandle[in]niRFmxInstrHandle

This parameter specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr_Initialize function.

selectorString[in]char

This parameter specifies a Selector String comprising of the signal name, subblock number, and offset number. If you do not specify the signal name, the default signal instance is used.
Example:
"subblock0/offset0"
"signal::sig1/subblock0/offset0"
You can use the RFmxNR Build Offset String function to build the selector string.

offsetRBW[in]float64

This parameter specifies the bandwidth of an RBW filter used to sweep an acquired offset segment. This value is expressed in Hz. The default value is 30 kHz.

offsetRBWFilterType[in]int32

This parameter specifies the shape of the digital RBW filter. The default value is Gaussian.

Name

Value

Description

RFMXNR_VAL_SEM_OFFSET_RBW_FILTER_TYPE_FFT_BASED

0 (0x0)

No RBW filtering is performed.

RFMXNR_VAL_SEM_OFFSET_RBW_FILTER_TYPE_GAUSSIAN

1 (0x1)

The RBW filter has a Gaussian response.

RFMXNR_VAL_SEM_OFFSET_RBW_FILTER_TYPE_FLAT

2 (0x2)

The RBW filter has a flat response.

Returns

Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred.

To obtain a text description of the status code and additional information about the error condition, call the RFmxNR_GetError function.

The general meaning of the status code is as follows:

Value

Meaning

0

Success

Positive Values

Warnings

Negative Values

Errors