Hello, I am using USRP-2954R, and I am testing transmission and reception using the example of Labview 2023 version. (niUSRP EX QAM Tx.vi / niUSRP EX QAM Rx.vi) If I set the transmission carrier frequency in 'niUSRP EX QAM Tx.vi' to 500MHz or less, the Carrier frequency I entered is the same as the Actual Carrier Frequency, but if I set it to 500MHz or more, the frequency lowered by 2GHz is set as the Actual Carrier Frequency. (0.5GHz -> -1.5GHz, 2GHz -> 0Hz, 4GHz -> 2GHz) I hope you guys can give me an answer as to what is causing the above phenomenon. The UBX-160, the daughter board included in the 2954R, seems to change its circuit path starting on 500MHz. I wonder if this is the reason, but it is not clear.

Uninstall NI-USRP 2023 and then install the new one. For uninstallation, use NI Package manager.

USRP Software Radio

Solved!

Thanks a lot, I will try that and will let you know

Soren

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