Report Explores Message Service For Analog AMs.

he article focuses on the report of IBiquity Digital and the National Association of Broadcasters (NAB) regarding their AM Digital Data Service (ADDS) project to enable analog AMs transmit data to display messages on analog and HD Radio receivers. It says that the concept of the project is the same with what the FMs able to provide with the Radio Data System (RDS). According to the report, ADDS is designed to be compatible with HD Radio in-band-on-channel (IBOC) broadcasting on AM.