The avionics industry gets big props for producing sophisticated, ever-more-capable products, but lately they’ve excelled at producing something else: confusion.

The veritable gusher of portable ADS-B products that appeared last spring has devolved an already chaotic market into a state of utter confusion that even we have trouble sorting out. To be fair, the FAA is to blame for proposing an ADS-B system that only Rube Goldberg could love and maybe not even him. So it’s time to ask of ADS-B—as many readers are—what’s in it for me? Why should I buy this technology and when?