The Atlantic League's automated ump assistants will be powered by a radar system from TrackMan. The company uses Doppler technology to track and record the characteristics of a ball while its in motion. TrackMan is no stranger to baseball. According to the company, its technology is already used by MLB Advanced Media for ball tracking in its Statcast system. Many teams at the pro level in the US, Japan and Korea use the system, as do some top NCAA programs.
While tapping tech to assist in process of calling balls and strikes seems like a no-brainer -- most baseball broadcasts will show exactly where a ball lands in the strike zone regardless of how the ump called it -- MLB has balked at the idea, fearing most systems aren't consistent enough to be implemented. It's a odd trepidation for the league, seeing as it has embraced ball tracking for Statcast and uses it extensively, but still refuses to let the technology supplement umps.
MLB has a strange relationship with tech, adopting it for fan experiences like ticketing and broadcasts but pushing it away when it affects the game. Recently, MLB announced it would crack down on camera systems that may be used to steal signs.
While the Atlantic League isn't a direct affiliate of MLB, the majors are partnering with the independent league and will be watching the tracking experiment closely. It will discuss the possibility of adopting the system during the 2019 All-Star Break.