The HackRF One is an amazing tool, but the documentation about how to use it with GNURadio is… scattered, to say the least. I got mine working today after a few hours of effort, and I wanted to share what I did so others could benefit, because it’s a little arcane. Specifically, I was using the wrong output sample rate. Symptoms of having the wrong output sample rate (too low) are scratchy audio and/or only transmitting in “chunks” (because the device is waiting to get a full buffer b...
