RQTX0237
12
DAB
DAB stands for digital audio broadcasting. It is a new
form of radio that is broadcast digitally. Unlike regular
analogue broadcasting, digital radio deteriorates
less, and is thus able to provide quality sound close
to that of a disc.
DAB structure
DAB structure
Bands
There are two types of DAB bands, “BAND
III
”
(Receivable in this unit) and “L BAND”(Not broadcast
in the United Kingdom, and not receivable on this unit).
Frequencies
There are 41 frequencies on BAND
III
. Among
those frequencies, 7 are used in the United Kingdom
(current as of January, 2009).
Ensemble, station and service
The number of stations that make up one frequency
differ between DAB and analogue radio. Analogue
stations all broadcast on different frequencies, even
if it is the same company doing the broadcasting.
With DAB however, it is possible to broadcast a
number of stations on the same frequency.
In DAB terminology, a group of stations on the same
frequency is called an ensemble.
As shown in the diagram, an ensemble consists of a
group of stations which have primary services, they
can also have secondary services. This means, for
example, that commentary on sports events from
different areas can all be broadcast at once.
DAB reception method on this unit
DAB reception method on this unit
Depending on the region there is a difference
between broadcast frequency and stations broadcast
along the same frequency. For this reason, a
memory of receivable stations should fi rst be created
and then select from those memorised stations as
the reception method.
DAB Auto Scan
This function searches for currently receivable
stations and inputs them into unit memory.
When DAB is selected for the fi rst time, this function
starts automatically.
Note:
Even if the station is stored into memory, some
stations may not broadcast depending on the time of
day etc. If this occurs, “NO SERVICE” is displayed.
Station Memory Updating
When there is a station name change, or a new
station begins broadcasting, the unit memory is
automatically updated when:
• The previous station name is displayed by selecting
“STATION TUNE”.
• One of the stations already broadcasting on the
same frequency with the new station is displayed
by selecting “STATION TUNE”.
Note:
• Deleting stations that are no longer broadcasting
is not automatic. If you want to delete a station,
perform Auto scan again and the new memory is
created.
• When a new frequency begins broadcasting,
stations on that new frequency are not automatically
added to memory. Perform Auto scan to add them
to memory. Also, you may need to change the Auto
scan range if the new frequency is outside the
factory set Auto scan range (
➡
page 14).
STATION TUNE
You can select stations from the memory created as
shown above in alphanumeric order. You can easily
select your favourite stations by using presets
(
➡
page 13).
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3/19/09 4:13:12 PM
3/19/09 4:13:12 PM