Posted in Engineering, Organizations AATU stands for Ann Arbor Tenants Union (est. 1968; Michigan) AATU stands for Automatic Antenna Tuning Unit AATU Share Pinterest Tweet Whatsapp Post navigation BAPPENASAAWSUP Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.