Yamaha Projector Accessories YSP-40D Manuel D’Utilisation

DAB (Digital Audio Broadcasting), also known as digital 
radio, is a new way of radio broadcasting. DAB is 
broadcast using digital signals instead of analog signals, 
resulting in near CD-quality sound. Analog signals (i.e. 
AM/FM) are susceptible to interference (i.e. distortion and 
noise) caused by electrical equipment, weather conditions, 
tall buildings, mountains, etc.; digital signals are not. 
Thus, with DAB, there is virtually interference-free 
reception and no hiss or crackle.

Another advantage of DAB is that a large amount of 
information can be carried within the digital signal. DAB 
is broadcast in blocks of data called ensembles (also 
known as multiplexes). Several radio programs (called 
services) can be broadcast simultaneously in each 
ensemble. This means that you can choose between 
several radio programs within one frequency.

In addition to the audio signal, service information is also 
broadcast and displayed in the front panel display of this 
unit. Part of the service information is text data 
information called DLS (Dynamic Label Segment). For 
more information, see page 52.

With DAB, there is no need to remember channel 
frequencies, either. All broadcasts are selected by simply 
selecting the service name.

• Be sure to check the DAB coverage in your area – not all areas 

are presently covered. For a list of country DAB statuses and 
worldwide DAB frequencies, visit WorldDAB online at 
“http://www.worlddab.org”.

• The sound quality and service information are controlled by the 

DAB broadcaster, not this unit. Not all DAB broadcasters 
transmit PAD/SI information.

• DAB signals are broadcast in Band-III (218 – 230 MHz).