TechniSat DIGITRADIO 3 User Manual

66
7 DAB+ (digital radio) function
7.1 What is DAB+?
DAB+ is a new digital format through which crystal clear sound with no noise can
be heard. In contrast to conventional analogue radio stations, DAB+ can be used to
broadcast multiple stations on one and the same frequency. This is referred to as
an ensemble or multiplex. An ensemble is comprised of the radio station, as well as
several service components or data services which are broadcast individually by the
radio stations. For further information, please visit e.g. www.dabplus.de or
www.dabplus.ch.
7.1.1 Data compression
By doing so, digital radio takes advantage of the properties of human hearing. The
human ear does not perceive sounds that are under a specific minimum volume.
Data that is under the so-called audibility threshold can, therefore, be filtered out.
This is possible since, in a digital data stream, the relevant relative volume for other
units is saved for every unit of information. Moreover, in an audio signal, the louder
components superimposed onto the quieter ones at a specific limit value. All the
sound information below the threshold of hearing in a piece of music can be filtered
out of the signal to be broadcast.
This results in a reduction of data in the data stream to be transmied, with
no perceptible dierence in sound for the listener (HE AAC v2 process as a
supplementary codification process for DAB+).
7.1.2 Audio stream
With digital radio, audio streams are continuous data streams that contain the MPEG
1 audio layer 2 frames and thereby represent acoustic information. This enables
standard radio channels to be broadcast and listened to on the receiver side.
Digital radio not only provides you with radio in excellent sound quality, but also
additional information. This may refer to the programme being broadcast or may be
independent information (e.g. news, weather, trac, tips).
7.2 DAB+ (digital radio) reception
> Press the MODE buon until [DAB] is shown on the display.
If DAB+ is being started for the first time, a complete station scan is
performed. Aer the scan is complete, the first station is played back in
alphanumeric order.
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TechniSat DIGITRADIO 3 Specifications

General

Radio type	Portable
Tuner type	Analog & digital
FM band range	87.5 - 108 MHz
DAB III band range	174 - 240 MHz
Supported radio bands	DAB+, FM
Radio Data System (RDS)	Yes
Preset stations quantity	20
RMS rated power	20 W
Audio formats supported	AAC, MP3, WAV, WMA
Number of built-in speakers	2
Display type	OLED
Bluetooth version	4.1
Bluetooth profiles	A2DP, AVRCP
Docking station included	No
Apple docking compatibility	Not supported
Headphone outputs	1
Headphone connectivity	3.5 mm
Antenna type	External
Product color	Black, Silver, Walnut
Package depth	215 mm
Package width	480 mm
Package height	190 mm
Package weight	4590 g
Operating temperature (T-T)	5 - 35 °C
Operating relative humidity (H-H)	5 - 90 %
Power source	AC/DC
AC input voltage	230 V
DC input voltage	12 V
AC input frequency	50 Hz

Weight and Dimensions

Depth	168 mm
Width	380 mm
Height	130 mm
Weight	3570 g