Jump to content
KevinHowJones

Unable to get HackRF One working properly on MacOS

Recommended Posts

MacOS 10.13

Just received new HackRF One, and am new to SDR. I have installed gnuradio and Gqrx. Both installations went successfully AFAICT.

Following Michael Ossmann's tutorial[1] I constructed a flow graph in gnuradio-companion, with the exception of using QT GUI components (WX components did not appear in the menus. From what I read[2] WX components are deprecated anyway.)

When running my gnuradio-companion flow graph or running Gqrx, I get similar results. The observations below apply to both gnuradio companion and Gqrx. I have tried all experiments on both applications:

FFT plot appears, however when my center frequency is set to a known FM station, I am unable to get audio. I do however get white noise on all settings in companion, and all settings except at the hardware frequency in Gqrx (see Gqrx exception below.)

I observe also, when setting my center frequency to 2.412 GHz (2.4 GHz wifi channel 1 center frequency) with a wireless access point nearby set to channel 1, I notice nothing telling in the FFT plot. Moving the radio farther or closer to the HackRF One has no effect on the amplitude of the plot.

I also observe that I ALWAYS have a spike in the plot at the hardware center frequency. It was misleading at first as I thought there was a signal there, but after experimentation I realized the spike only has to do with where I set the hardware center frequency.

The slight difference I observe with Gqrx is that when setting the mode to WFM and tuning to the hardware center frequency (where the spike is) the white noise is squelched out.

I have experimented with several different settings in Gqrx and several different graphs in companion, but cannot get it to work.

I read on a forum that someone had a problem with the supplied ANT500 antenna, so I tried another antenna, but it made no difference.

Some guidance would be much appreciated.

[1]https://github.com/gnuradio/gnuradio/issues/1742
[2]https://greatscottgadgets.com/sdr/1/

Share this post


Link to post
Share on other sites

Here is a screen shot of my Gqrx config, and my companion flow graph:

Gqrx: (the tall peak at the center is at the hardware freq, and there is always one at the hardware freq, regardless of where it gets set at.)

gqrx_screen_2.png

gnuradio-companion:

gnuradio_companion_screen.png

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...