AD9361 TX Spectrum Visualization SIMULINK TESTBENCH
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Hello
I'm using the SIMULINK AD9361 simrf support models, more specifically i use an AD931 TX model to generate a 20MHz RF LTE signal around 2GHz Fc
the issue is when i use a spectrum analyzer scope i see the 20MHz LTE signal is around 0 DC ? it should be around 2GHz, what's the catch?
setup

specturm

1 Comment
焓希
on 9 Mar 2025
Hello. I'm currently facing the same problem. May I ask if you have managed to solve this problem in the end? I need your help.
Answers (1)
Abhishek
on 30 May 2025
0 votes
The following MATLAB Answer might be useful to understand why the signal appears centered at 0 Hz in the Spectrum Analyzer instead at the expected 2 GHz center frequency:
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