RFmx NR Known Issues


This document contains the RFmx NR known issues. Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that can be encountered.
ID Known Issue

Instability issues in ModAcc EVM for low RB cases with trigger type as power edge or no trigger.

Workaround: Increase the measurement length to multiple slots.


Reported Version: 19.1    Resolved Version: N/A    Added: 10/21/2019

ModAcc supports DFT-s-OFDM with PTRS enabled only with Digital Trigger and measurement mode is Frame.

Workaround: For DFT-s-OFDM, when PTRS is enabled, use Digital Trigger and set  ModAcc Sync Mode to Frame.


Reported Version: 19.1 Resolved Version: N/A    Added: 10/21/2019

Auto detection of modulation is incorrect at SNR of 20dB.


Reported Version: 19.1    Resolved Version: N/A    Added: 10/21/2019


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  • Resolved Version - Version in which the issue was resolved or was no longer applicable.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).