Ask HN: Wireless Network Tools?

Hey all,

I have an FPV drone that's WiFi. I saw a recent article about someone reversing one on here. I had some software for WiFi signal analysis on my old laptop, but can't remember the name. I want to experiment on my own drone so I can hopefully make a more security-informed decision if I want to proceed with building a more expensive one. Someone taking over or even just interfering with the signal seems like a major safety risk.

I'm currently looking at Wireshark ND Netstumbler. Do you have any suggestions on free ones? Anything that does Bluetooth and other protocols?