It's DJIs RID. Only visible to intercepted traffic using aeroscope. It hasn't been ruled by FAA either way, but there is a possibility that they could make a few changes to their software defined radio to be compliant.Below is a photo of my display as I turned on some RID settings yesterday. It is time to renew registration with FAA and it asked the question if my drone broadcasts an ID. I didn't think that was in the cards yet, but it does show an ID, with no flight information as I was hovering. Does this actually mean anything or is it just a "place holder" until things actually go live? Interestingly, the ID shown is the name the drone is registered with, but with a letter missing.