7
USING YOUR
DAB500
TURNING
THE
TUNER
ON
AND
OFF
Make sure all the relevant connections, as described earlier have been
made. As a precaution, make sure the amplifier volume is turned down low.
Press the "Power" button on the front panel.
TUNING
When first switched on, the DAB500 will automatically scan for all available
stations (unless your aerial is not connected properly or DAB reception is
weak or unavailable in your area). The display says 'now tuning…' when this
takes place. There are two types of auto tune:
Rapid - this scans frequencies in the UK channel allocation. This should
take approximately 45 seconds.
Full - scans the full range of digital frequencies in Band III. This may take
several minutes.
To undertake a rapid scan, press the "Auto Tune" button for roughly two
seconds. For a full scan press the "Auto Tune" button for longer than two
seconds. If you have pressed “Auto Tune” by mistake press a third time to
cancel the operation.
If no stations are found after the auto tuning process, "no stations found"
will be shown on the display. If this occurs check the connections and
positioning of the aerial or with your local radio stations for coverage
information (see later in this manual for more details).
SELECTING
A
SERVICE
One of the key advantages of digital tuners is the simplicity of tuning.
Rotate the large tune/enter dial on the front panel to scroll through the
available stations. To select a broadcast simply press the tune/enter dial.
PRIMARY
AND
SECONDARY
SERVICES
Some selected stations have a primary and secondary broadcast, for
example BBC Radio 4 broadcasts cricket commentary on analogue Long
Wave, whilst simultaneously maintaining its normal programming on FM. If
a secondary service is available, the display will show a dotted arrow
pointing to the right sitting next to station name.
To select the secondary service, turn the tune/enter dial to the right. When
the secondary service is displayed press the tune/enter dial.
CHANGING
THE
DISPLAY
MODE
The DAB500 has various display modes which lets you view the additional
text data that accompanies digital broadcasts. To access the various data
channels press the "Info" button as indicated below:
Default mode - Presents scrolling text service offered by the particular station.
Press once - Gives the Program Type, which describes the genre of station.
Press again - Displays the name of the multiplex on which current service is
found. See the section 'An overview of Digital Audio Broadcasting (DAB)'
later in this manual for further information.
Press again - Shows the time and date.
Press again - Displays technical information, such as the channel label and
centre frequency.
Press again - Displays the audio signal data rate (in kilobytes per second)
and mode (stereo or mono).
Press again - Shows the signal error rate, where zero is perfect. The number
increases as the signal deteriorates.
Press again - Returns to scrolling text service.
