Backporting FAA Compliance
Legacy DJI drones including the Mavic Air and the Spark never received firmware updates to enable ASTM F3411 (Remote ID) support, so I added it myself.
Scripting Quadcopter Airdrops
I used the HackRF to capture and decode the 2.4 GHz remote signal from a simple drone payload dropper, finding the hooks needed for scripted automation.
AeroPods: Inflight Airband Radio
RTL-SDR dongles weren't cutting it for comfortably listening to airband inflight, so I built a custom solution using a jailbroken iPhone as an SDR coprocessor.