> audible input to pick up the propellers Does not really work that well, as far as I've seen. One is probably best off using an SDR to pick up the communicati

> audible input to pick up the propellers Does not really work that well, as far as I've seen. One is probably best off using an SDR to pick up the communications between the drone and the remote. It's a rather inexpensive solution, as well. Microdoppler is promising for this as well, but that is likely astronomically out of the range of purchasing power for the average person.