Sri Posted February 26, 2019 Share Posted February 26, 2019 Hej, I am trying to capture the FM frequencies using HackRF-one. I don't have the regular antenna, so I am using a different antenna (shown below). When I tried to record the FFT plot for the range of frequencies the receiver is able to capture, I obtained a plot as shown in the image below. I am a bit curious as to why the number of peaks and the height (length) of each peak is small. Can it be due to the antenna that I am using or the place where the SDR is operated? I am unable to receive any FM signal from the audio sink. If you have any ideas, please let me know. Sample rate : 20 MHz Channel center freq : 104.3 MHz Quote Link to comment Share on other sites More sharing options...
Just_a_User Posted February 26, 2019 Share Posted February 26, 2019 (edited) 2 hours ago, Sri said: any ideas, please let me know Did you already try using it through GQRX? http://gqrx.dk/ It has some built in demodulators including FM Edited February 26, 2019 by Just_a_User Quote Link to comment Share on other sites More sharing options...
Sri Posted February 26, 2019 Author Share Posted February 26, 2019 I haven't tried it yet. Will try it now. Quote Link to comment Share on other sites More sharing options...
Cap_Sig Posted April 15, 2019 Share Posted April 15, 2019 As @Just_a_User said you will need a demodulator. I would recommend a different antenna as well depending on your intentions of use. Quote Link to comment Share on other sites More sharing options...
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