In this Lesson
- welcome to the video series
- introduction to SDR
- introduction to HackRF
- course background
- introduction to GNU Radio Companion
- “hello world”, receiving FM radio
Try Pentoo Linux: Follow the instructions at Getting Started with HackRF and GNU Radio.
FM radio flowgraph: Create a flowgraph in GNU Radio Companion like the one in the video or the screenshot below. Test the flowgraph by listening to a strong FM radio signal.
Add a channel slider: Add a slider to your FM radio flowgraph and use it to change channels while your flowgraph is running.
Add a second channel: Update your FM radio flowgraph so that it allows you to listen to two radio stations at the same time. Hint: Use an Add block to combine two audio signals.
- FM radio RX flowgraph: lesson1.grc
- Getting Started with HackRF and GNU Radio
- GNU Radio
- HackRF One
- 25 August 2014: The original video encoding had some problems. I produced a new encoding so that iPad and Safari users can hear the sound. I also improved the audio/video synchronization and filtered the audio a bit.
- 25 August 2014: I pointed out the “gears” icon in GNU Radio Companion. In future versions, this changes to a triangular “play” icon.
- 5 October 2015: I used the WX GUI option in GNU Radio Companion. The default has since changed from WX GUI to QT GUI in the Options block. If you are using a newer version of GNU Radio, you’ll need to change it back to WX GUI to follow along with my flowgraph.