Triggers:Ref:Advanced:OSP Delay Enabled Property

Triggers:Ref:Advanced:OSP Delay Enabled Property

Short Name: Reference Trigger OSP Delay Enabled

Property of niRFSA

Specifies whether to enable the digitizer OSP block to delay Reference Triggers, along with the data samples, moving through the OSP block. If you set this property to Disabled, the Reference Triggers bypass the OSP block and are processed immediately.

Enabling this property requires the following equipment configurations:

• All digitizers being used must be the same model and hardware revision.
• All digitizers must use the same firmware.
• All digitizers must be configured with the same I/Q rate.
• All devices must use the same signal path.

PXIe-5663/5663E—Read the value of the IF Filter property to determine the IF filters used by the PXIe-5663/5663E.

PXIe-5665/5667/5668—Refer to the device-specific information in the Device Instantaneous Bandwidth property to determine the IF filters used by the PXIe-5665/5667/5668. If you set the FFT Width property, refer to the device-specific information for this property and the Device Instantaneous Bandwidth property to determine the IF filters used. For frequencies less than 3.6 GHz, set the Preamp Enabled property to the same value for all devices.

PXIe-5665 14 GHz—Set the Downconverter Preselector Enabled property to the same value for all devices.

If the I/Q rate is set programmatically for I/Q acquisitions, the following properties should be identical for the best device synchronization:

• Digital IF Equalization Enabled
• OSP Sampling Ratio

For spectrum acquisitions, the following properties should be identical for the best device synchronization:

• Span
• Resolution Bandwidth
• Digital IF
• OSP Sampling Ratio

For more information about the digitizer OSP block and Reference Triggers, refer to the following topics in the NI High-Speed Digitizers Help:

• NI-5622 Onboard Signal Processing (OSP)
• NI-5142 Onboard Signal Processing (OSP)
• NI PXIe-5622 Trigger Sources
• NI PXI-5142 Trigger Sources
• NI PXIe-5622 Block Diagram
• NI PXI-5142 Block Diagram

Default Value: Enabled

Supported Devices: PXIe-5663/5663E/5665/5667/5668, PXIe-5820/5830/5831/5832/5840/5841/5842/5860

Related Topics

Triggers

Remarks

The following table lists the characteristics of this property.

Datatype
Permissions	Read/Write
High-level VIs	N/A
Channel-based	No
Resettable	Yes