Specifies whether the tunable preselector is enabled on the downconverter.

Syntax

NIRFSA_ATTR_DOWNCONVERTER_PRESELECTOR_ENABLED

Numeric Value

Data Type

Access

Applies To

1150132

ViInt32

Read/Write

N/A

Remarks

Note

All devices support setting this attribute to NIRFSA_VAL_PRESELECTOR_DISABLED or NIRFSA_VAL_PRESELECTOR_ENABLED_WHEN_IN_SIGNAL_PATH. Only devices with a preselector support setting this attribute to NIRFSA_VAL_PRESELECTOR_ENABLED.

Defined Values:

Name

Value

Description

NIRFSA_VAL_PRESELECTOR_DISABLED

2600 (0xa28)

Disables the preselector.

NIRFSA_VAL_PRESELECTOR_ENABLED

2602 (0xa2a)

Enables the preselector. If the preselector is not in the signal path or if the preselector is not supported on the device, NI-RFSA returns an error. Select the NIRFSA_VAL_PRESELECTOR_ENABLED_WHEN_IN_SIGNAL_PATH whenever possible avoid an error.

NIRFSA_VAL_PRESELECTOR_ENABLED_WHEN_IN_SIGNAL_PATH

2601 (0xa29)

The preselector is automatically enabled when it is in the signal path and is automatically disabled when it is not in the signal path. Use the NIRFSA_ATTR_PRESELECTOR_PRESENT attribute to determine if the downconverter has an preselector.

Default Value: NIRFSA_VAL_PRESELECTOR_DISABLED if the device has no preselector. NIRFSA_VAL_PRESELECTOR_ENABLED_WHEN_IN_SIGNAL_PATH if the device has a preselector.

Supported Devices: PXI-5600, PXIe-5601/5603/5605/5606 (external digitizer mode), PXIe-5644/5645/5646, PXI-5661, PXIe-5663/5663E/5665/5667/5668, PXIe-5830/5831/5832/5840/5841/5842/5860