Re: Electronic conspicuousness
"in a few weeks some bright kid in China will have figured out ADS-B on a chip weighing 5 grammes"
There is nothing about ADS-B that requires super expensive parts. It's the horrendously expense and tedious process of getting anything that goes on an aircraft tested and certified.
I'm not sure if regulators are going to allow non-certified transmitters to be used on drones. I have no doubt that they'd work just fine or at least many of them would. I expect that DJI could have one that adds no more than a few quid to the cost of the drone already fitted as standard.