Timing Configurations
Selecting Available Ports
You can use the NI-RFSA and NI-RFSG APIs to query available ports on your VST and specify which ports to use. This functionality is important for VSTs with millimeter wave functionality because these VSTs use different ports depending on the frequency of the signal you are generating or analyzing.
Instrument Configurations
The following tables list the hardware connectors that correspond to the valid port strings used by the driver software to specify the ports available for you to select and configure based on the hardware configuration you purchased.
Peer-to-Peer Data Streaming
The PXIe-5831 supports peer-to-peer (P2P) data streaming using the NI-P2P API. Peer-to-peer streaming exchanges data directly between supported devices, bypassing the host computer memory and making applications that require real-time data transfer between devices possible.
LO Sharing Using NI-RFSA and NI-RFSG
To reduce phase noise for some measurements, the PXIe-5831 allows for sharing the same internal LO during NI-RFSA and NI-RFSG sessions.
Improving NI-TClk Synchronization of RF Instruments
The PXIe-5831 supports NI-TClk, which allows for multi-instrument synchronization with fine alignment. You can use NI-RFSA and NI-RFSG to further optimize NI-TClk synchronization.
De-embedding Overview
NI RF instrument performance specifications are for signals at the instrument's ports. However, you must also account for external cabling and components between the instrument and DUT, which also affects input and output signals.
Configuring Frequency and Bandwidth for PXIe-5831
Use the NI-RFSA and NI-RFSG drivers to configure the PXIe-5831 instrument for optimal performance by specifying frequency and bandwidth constraints.
Unsupported Software Features
The following NI-RFSA and NI-RFSG driver software features are not supported on the PXIe-5831.

PXIe-5831 User Manual

44 GHz, 1 GHz Bandwidth PXI Vector Signal Transceiver

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