GQRX 2.9 and Airspy HF+ work on Raspbian with the Raspberry Pi 3. Using the Rasbian November '17 image from the Rasberry Organization, you might face some issues:
- GNURadio might not install after Raspbian update/ugrade: Install GNURadio on a clean image, before updating and upgrading Raspbian.
- AM demodulation has an issue with the sound system, there is a continuous overflow. Possibly using another sample rate for the audio sink could help, yet that cannot be configured.
- To prevent overheating of the PI you could reduce the display rate of the waterfall.