6. System E: The Multimedia Broadcaster
Main Goal: Also known as ARIB (Association of Radio Industries and Businesses), this system was designed to deliver not only high-quality audio but also multimedia data services—like text and pictures—to vehicular, portable, and fixed receivers using a combination of satellite and ground-based repeaters.
System E was designed from the start to be a multimedia platform. While providing excellent sound was a priority, its architecture was also built to support the transmission of other forms of data, making it a more versatile broadcasting tool.
- More Than Just Audio A defining feature of System E is its capability to handle multimedia. Alongside the primary audio stream, a broadcaster can transmit associated data like still pictures, graphics, business data, or text. This allows for a richer experience, such as displaying album art, artist information, or news headlines on the receiver’s screen.
- Unique Technology (CDM) This system uses a different core technology called Code Division Multiplex (CDM). In simple terms, this is a method that allows multiple broadcasters to use the exact same frequency at the same time without interfering with each other. Each broadcaster’s signal is given a unique “code,” and the receiver uses that code to “unlock” and listen to only the desired signal, ignoring all others.