Dear Michael,
Thank you for your professional experience .
I have tried to use AD9361 to receive FM program.Unfortunately , the FM Broadcast program couldn't be demodulated by iio_fm_radio app which is developed by ADI in my test.
I opened a Terminal app in Ubuntu and change the AGC mode to fast lock. After iio_fm_radio ran on an FM program frequency of 87.9 MHz in Shanghai. Nothing could be heard from the phone jack except something like 'pen pen' sound. Meanwhile a continuously generated data stream was being shown on the Terminal, which were not recognized.
Can I use the app instead of a real spectrum analyzer?
Best regards,
-Jie
2014/10/13