Fascinating. I’ve read a little on RF jamming (some based on drones, as well as denial of radio or HAM broadcasting; mostly by nation-states trying to drown out Numbers Stations, Radio Free Europe or whatnot), as well as aforementioned launched net devices (the one I saw kind of looked like a shoulder-mounted RPG).This is a global problem. One of my research projects is developing drone detection and defense systems for all sorts of scenarios, from disturbing air traffic on airports over industrial espionage to terrorist attacks (chemical weapons or explosives attached to a drone). In general (depends on where you live) it's illegal to fly over people's property for whatever reason including filming without their permission. But it is also illegal to shoot down drones. You're supposed to notify authorities. By the time they arrive it's usually too late. The safer way for commercial drones like DJI is a jamming signal to make it either land or return to pilot.
On the other hands, shooting down drones is not an easy task. For slow flying or hovering drones, sure. We did a field test in Afghanistan, trying to shoot down a fast approaching drone (~ 150 mph) with 5000 rounds of ammo. No luck, and the guys shooting were active military. If that thing would have been rigged with explosive or chemical weapons... goodbye.
Be careful though, battery might blow, drone could crash and whatever it's crashing into might catch fire. Good luck catching that pilot, depending on where the drone was bought.
Aside from experimental stuff like microwaves and lasers, we've actually had most success with our drones (computer operated) catching the intruders with a net mid-air.
I have no practical need for such devices, but it’d be cool to have. And to be completely fair, this is a moot point anyway, as my five acres is pretty uninteresting and devoid of interest by nascent drone operators. I was just arguing the hypothetical.
Kudos to your cool experiences though, Sir!