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NI-RFSG 2025 Q4 Known Issues

Created Jan 5, 2026

Overview

This document contains the NI-RFSG known issues that were discovered before and since the release of NI-RFSG 2025 Q4. Known issues are performance issues or technical bugs that NI has acknowledged exist within this version of the product.

 

Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that you may encounter and provide workarounds when possible. Other technical issues that you may encounter could occur through normal product use or system compatibility issues. You may find more information on these issues in NI’s Product Documentation, Knowledgebase, or Community; see Additional Resources.

Bug Number

Legacy ID

Description

Details
3593690

Incorrect measurements with NI-RFSA/NI-RFSG 2025 Q4 and PXIe-5633 running 1.1.1 firmware

Using NI-RFSA 2025 Q4 or NI-RFSG 2025 Q4 with PXIe-5633 modules running firmware 1.1.1 or later causes incorrect two-port S-parameter and wave measurements.

Workaround:

Upgrade to NI-RFSA 2026 Q1 or later and NI-RFSG to 2026 Q1 or later.

Reported Version:

NI-RFSA 2025 Q4 | NI-RFSG 2025 Q4

Resolved Version:

N/A

Added:

Sep 12, 2025

Final Time Issue Listed

Issues found in this section will not be listed in future known issues documents for this product.

There are currently no issues to list.

Additional Resources

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Glossary of Terms

 

  • Bug ID - When an issue is reported to NI, you may be given this ID or find it on ni.com.  You may also find IDs posted by NI on the discussion forums or in KnowledgeBase articles.
  • Legacy ID – An older issue ID that refers to the same issue.  You may instead find this issue ID in older known issues documents.
  • Description - A few sentences which describe the problem. The brief description given does not necessarily describe the problem in full detail.
  • Workaround - Possible ways to work around the problem.
  • Reported Version - The earliest version in which the issue was reported.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).