AD9361 TX Spectrum Visualization SIMULINK TESTBENCH

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

[焓希]

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.

Answer 1

[Abhishek]

Hi @jim wild,

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:

https://www.mathworks.com/matlabcentral/answers/2174955-ad9361-transmitter-testbench