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DAB is commonly transmitted by a different company from the broadcaster who then sells the capacity to a number of radio stations. This shared cost can work out cheaper than operating an individual FM transmitter. This efficiency originates from the ability a DAB network has in broadcasting more channels per transmitter/network.
While digital broadcasting offers many potential benefits, its introduction has been hindered by a lack of global agreement on standards and many disadvantages. The DAB Eureka 147 standard for digital radio is coordinated by the World DMB Forum. This standard of digital radio technology was defined in the late 1980s, and is now being introduced ...
The radio technology known as Digital Audio Broadcasting (DAB and DAB+), and its TV sibling, Digital Multimedia Broadcasting (DMB), is being operated in several regions worldwide, either in the form of full services, or as feasibility studies.
Digital Audio Broadcasting (DAB), a.k.a. Eureka 147, is the most common standard in Europe. Digital Radio Mondiale (DRM‑30 and DRM+ configurations) was intended mostly for shortwave radio. By May 2018, iBiquity Digital Co. claimed its HD Radio technology was used by more than 3,500 individual services, mostly in the United States. [8]
Satellite radio technology was inducted into the Space Foundation Space Technology Hall of Fame in 2002. [5] Satellite radio uses the 2.3 GHz S band in North America for nationwide digital radio broadcasting. [6] In other parts of the world, satellite radio uses the 1.4 GHz L band allocated for DAB. [7]
Digital audio broadcasting (DAB) is an advanced radio technology which debuted in some countries in 1998 that transmits audio from terrestrial radio stations as a digital signal rather than an analog signal as AM and FM do.
Digital audio radio service (DARS) is any type of digital radio program service.In the United States it is the official FCC term for digital radio services.. The most popular type of DARS in the U.S. and Canada is SDARS (Satellite Digital Audio Radio Service), used by Sirius Satellite Radio and XM Satellite Radio.
The first, and only, digital technology approved for use on AM and FM broadcast frequencies by the Federal Communications Commission in the United States, is the proprietary HD Radio system developed by iBiquity Digital Corporation, [1] which transmits energy beyond the allotted ±100 kHz FM channel.