Roberts Classic DAB User manual

DAB/FM RDS digital portable radio
Please read this manual before use
ROBERTS
Enjoy Listening

Controls ........................................................................... 2-3
Battery operation .................................................................4
Using the AC adaptor ..........................................................5
Operating your radio - DAB .................................................6
Selecting a station - DAB.....................................................7
Secondary services - DAB...................................................7
Display modes - DAB ...................................................... 8-9
Finding new stations - DAB .................................................9
Manual tuning - DAB .........................................................10
Dynamic range control - DAB............................................11
Prune stations - DAB.........................................................12
Operating your radio - FM .................................................13
Manual tuning - FM............................................................14
Display modes - FM...........................................................15
Scan sensitivity setting - FM..............................................16
Presetting stations.............................................................17
Recalling a preset station ..................................................18
Software version................................................................19
System reset......................................................................20
Headphone socket.............................................................21
Contents
Dimmer function ................................................................21
General..............................................................................22
Specifications ....................................................................22
Circuit features ..................................................................22
Guarantee.............................................................Back page
1

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 2
Controls
1. Auto Tune button
2. On / Off button
3. Preset button
4. Station / Menu button
(Top)
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5. LCD display
6. Telescopic aerial
7. Tuning / Select / Volume control

3
Controls
8. USB upgrade socket (for service use only)
9. Headphone socket
10. DC input socket
11. Battery compartment
10
(Back)
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If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 4
Battery operation
1. Remove the battery cover on the back of the unit by sliding the cover
in the direction of the arrow.
2. Insert six LR6 (AA size) batteries into the spaces in the compartment.
Take care to ensure all batteries are inserted with the correct polarity
as shown next to the battery compartment. Replace the battery cover.
3. Reduced power, distortion and a ‘stuttering’ sound are all signs that
the batteries may need replacing.
4. If the radio is not to be used for any extended period of time it is
recommended that the batteries are removed from the radio.
We would recommend for economy that the radio is used via the AC
adaptor whenever possible with battery operation for occasional use
only.
IMPORTANT: The batteries should not be exposed to excessive heat
such as sunshine, fire or the like.After use, disposable batteries should
if possible be taken to a suitable recycling centre. On no account
should batteries be disposed of by incineration.
1

Using the AC adaptor
1. Place your radio on a flat surface and plug the mains adaptor into the
DC input socket located on the left hand side of your radio (marked
'DC') ensuring that the plug is pushed fully into the socket.
2. Plug the other end of the mains adaptor into a standard 13A mains
socket outlet and switch on the wall socket. Whenever the adaptor is
used the batteries are automatically disconnected.
The AC adaptor should be disconnected from the mains supply and
from the radio when not in use.
IMPORTANT: The mains adaptor is used as the means of connecting the
radio to the mains supply. The mains socket used for the radio must remain
accessible during normal use. In order to disconnect the radio from the
mains completely, the mains adaptor should be removed from the mains
socket outlet completely.
5

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 6
Operating your radio - DAB
1. Carefully extend the telescopic aerial.
2. Press the On/Off button to switch on your radio, the display will show
'WELCOME' for a few seconds.After each use the radio will remember
the mode used and then switch on in that mode the next time that it
is used.
3. If this is the first time the radio is used a quick scan of the Band III
DAB channels will be carried out. This is known as 'Auto tune'. If the
radio has been used before the last used station will be selected.
4. DuringAuto tune each group of stations will be detected and the station
count will be updated.
5. When the Auto tune is completed the first station (in numeric-alpha
order 0...9...A....Z) will be selected. The first station in the list of stations
found will be played.
6. If no stations are found then 'OFF AIR' will be displayed and it may be
necessary to relocate your radio to a position giving better reception.
You should then carry out an auto tune to find stations as described
on page 9 (see Finding new stations on page 9).
• Your radio has an indicator on the display to indicate the strength
of the DAB radio signal being received.
Note: When first switched on, the radio will set the volume to a moderately
high level, in case the broadcast is very quiet.After you have set the volume
using the Volume control, the radio will remember the setting that you
have applied for the next time that it is used.
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Selecting a station - DAB
1. Press the On/Off button to switch on your radio. If your radio is currently
in DAB mode proceed to step 3. (DAB icon is displayed in DAB mode.)
2. If you are listening in FM mode press the Station/Menu button and
then rotate the Tuning/Select control until 'TO DAB' shows on the
display. Press the control to switch to DAB mode.
3. Press the Station/Menu button, the display will show 'STATION'. Press
the Tuning/Select control and rotate the control to scroll through the
list of available stations.
4. Press and release the Tuning/Select control to select the desired
station. The radio will find the new station. If the control is not pressed
the radio will automatically tune to the new station after 2 or 3 seconds.
5. Rotate the Volume control to the required setting.
Note: If after selecting a station the display shows 'OFF AIR' it may be
necessary to relocate your radio to a position giving better reception.
Secondary services - DAB
1. Certain radio stations have one or more secondary services associated
with them. If a station has a secondary service associated with it the
secondary service will then appear immediately after the primary
service as you rotate the Tuning/Select control clockwise.
2. To tune to the secondary service, press and release the Tuning/Select
control. Most secondary services do not broadcaset continually and
if the selected service is not available, the radio will re-tune to the
associated primary service.
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If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 8
Display modes - DAB
Your radio has a range of display options when in DAB mode:-
1. Press and release the Tuning/Select control to cycle through
the various modes.
a. Station name Displays the station name being
listened to.
b. Scrolling text Displays scrolling text messages such
as artist/track name, phone in number,
etc.
c. Signal strength Displays the signal strength. The minimum
signal marker ( ) shows the minimum
signal strength needed for good DAB
reception. The signal indicator chevrons
increase or decrease showing the changing
signal strength as you adjust the telescopic
aerial or your radio position.
d. Programme type Displays type of station being listened to
e.g. Pop, Classic, News, etc.
e. Multiplex Name Displays name of multiplex to which the
current station belongs.
f. Frequency Displays the frequency for the currently
tuned DAB station.
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Finding new stations - DAB
As time passes new stations may become available or you may have
moved to a different part of the country. In this case you may need to
cause your radio to scan for new stations.
1. Press and release the Auto Tune button. Your radio will perform a
scan of the Band III DAB channels. As new radio stations are found
the station counter on the right-hand side of the display will increase
and the radio stations will be added to the list stored in the radio.
Display modes - DAB cont.
g. Signal error Displays the bit error rate for the currently
tuned DAB station. The lower the number
the better the signal strength being received.
h. Bit rate Displays the digital bit rate for the currently
tuned DAB station.
i. Audio type Displays the audio type for the currently
tuned DAB station.
j. Time Displays current time.
k. Date Displays current date.
g
h
i
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1

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 10
Manual Tuning - DAB
Manual tuning allows you to tune your radio to a particular DAB frequency
in Band III. Any new stations found will be added to the station list. This
function can also be used to assist the positioning of the aerial or the radio
to optimise reception for a specific channel or frequency. Note that UK
DAB stations are located in the range of channels 11B to 12D.
1. Press the Station/Menu button, the display will show 'STATION'.
2. Rotate the Tuning/Select control until 'MANUAL' shows on the display.
3. Press and release the Tuning/Select control to enter manual tuning
mode.
4. Rotate the Tuning/Select control to select the desired DAB channel.
Press and release the Tuning/Select control to tune to the chosen
frequency.
5. If a signal is present, this will be indicated on a signal strength display.
The minimum signal marker ( ) shows the minimum signal strength
needed for good DAB reception. The signal indicator chevrons increase
or decrease showing the changing signal strength as you adjust the
telescopic aerial or your radio position.
6. When a DAB signal is found, the display will show the name of the
DAB station. Any new radio stations found will be added to the list
stored in the radio.
7. Press and release the Tuning/Select control to return to normal tuning.
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Dynamic Range Control (DRC) settings - DAB
The DRC facillity can make quieter sounds easier to hear when your radio
is used in a noisy environment.
1. Press the On/Off button to switch on your radio.
2. Press the Station/Menu button, the display will show 'STATION'.
3. Rotate the Tuning/Select control until 'DRC' shows on the display.
4. Press and release the Tuning/Select control to enter adjustment
mode.
5. Rotate the Tuning/Select control to select required DRC setting
(default is 0) .
DRC 0 DRC is switched off, Broadcast DRC will be ignored.
DRC 1/2 DRC level is set to 1/2 that sent by broadcaster.
DRC 1 DRC is set as sent by broadcaster.
6. Press and release the Tuning/Select control to confirm the setting.The
display will return to the station name display after several seconds.
Note: Not all DAB broadcasts use the DRC function. If the broadcast
does not provide DRC information, then the DRC setting in the radio will
have no effect.
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If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 12
Prune stations - DAB
If you move to a different part of the country, some of the stations which
were listed may no longer be available. Also, from time to time, some DAB
services may stop broadcasting, or may change location or frequency.
Stations which cannot be found, or which have not been received for a
very long time are shown in the station list with a question mark.
The Prune stations function will delete the marked DAB stations from
your station list.
1. Press the On/Off button to switch on your radio.
2. Press the Station/Menu button, the display will show 'STATION'.
3. Rotate the Tuning/Select control until 'PRUNE' shows on the display.
4. Press and release the Tuning/Select control 'SELECT' will show on
the display.
5. Press the Tuning/Select control to cause the invalid station names
to be removed from the station list. The display will return to station
name display after several seconds.
If you do not wish to prune stations press the Station/Menu button to
return to the previous display.
Note: If you have moved your radio to a different part of the country you
should also carry out a search for new stations (please see the section
'Finding new stations' on page 9).
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Operating your radio - FM
1. Carefully extend the telescopic aerial.
2. Press the On/Off button to switch on your radio. If your radio is
currently in FM mode proceed to step 4. (FM icon is displayed in
FM mode.)
3. If you were listening in DAB mode press the Station/Menu
button and then rotate the Tuning/Select control until 'TO FM'
shows on the display. Press the control to switch to FM mode.
4. Press the Auto Tune button. Your radio will scan in an upwards
direction (low frequency to high frequency) and stop automatically
when it finds a station of sufficient strength.
5. After a few seconds the display will update. The display will show
the frequency of the signal found. If the signal is strong enough and
there is RDS data present then the radio will display the station
name.
6. Press and hold the Auto Tune button to scan the FM band in a
downwards direction (high frequency to low frequency).
7. When the waveband end is reached your radio will recommence
tuning from the opposite waveband end.
8. Rotate the Volume control to the required setting.
9. To switch off your radio press the On/Off button.
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If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri)
Manual tuning - FM
1. Carefully extend the telescopic aerial.
2. Press the On/Off button to switch on your radio. If you radio is currently
in FM mode proceed to step 4. (FM icon is displayed in FM mode.)
3. If you were listening in DAB mode press the Station/Menu button
and then rotate the Tuning/Select control until 'TO FM' shows on
the display. Press the control to switch to FM mode.
4. Press the Station/Menu button the display will show 'MANUAL'.
5. Press and release the Tuning/Select control and rotate to tune to a
station.The frequency will change in steps of 50kHz. If the radio is
tuned to a station of sufficient signal strength with RDS information
present, then the display may change to show the station name.
6. When the waveband end is reached the radio will recommence tuning
from the opposite waveband end.
7. Rotate the Volume control to the required setting.
8. To switch off your radio press the On/Off button.
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Display modes - FM
Your radio has a range of display options for FM mode:-
The Radio Data System (RDS) is a system in which inaudible digital
information is transmitted in addition to the normal FM radio programme.
RDS offers several useful features.The following are available on your radio.
1. Press and release the Tuning/Select control to cycle through the
various modes.
a. Scrolling text Displays scrolling text messages such
as artist/track name, phone in number
etc.
b. Program Type Displays type of station being listened to
e.g. Pop, Classic, News, etc.
c. Station name Displays the name of the station being
listened to.
d. Time Displays current time.
e. Date Displays current date.
f. Frequency Displays frequency of the station
currently being listened to.
Note: If no RDS information is available, the radio will be unable to display
the station name, scrolling text and programme type information. Your radio
will display 'NO TEXT' if there is no scrolling text and 'NO PTY' if there is
no programme type information.
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1

If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 16
Scan sensitivity setting - FM
Your radio will normally scan for FM broadcasts which are strong enough
to give good reception. However, you may wish the Auto-scan function
to also be able to find weaker signals, possibly from more distant radio
transmitters. Your radio includes a local / distant option for the Auto-scan
function.
1. Press the On/Off button to switch on your radio. Ensure your radio is
in FM mode.
2. Press the Station/Menu button the display will show 'MANUAL'.
3. Rotate the Tuning/Select control until 'SETTING' shows on the display.
Press the control to enter the scan settings menu.
4. Rotate the Tuning/Select control to switch between Local and Distant
options. The Distant option will allow the radio to find weaker signals
when scanning.
5. Press and release the Tuning/Select control to confirm your selection.
The display will return to the station name display after several seconds.
The Local or Distant setting is stored in the radio and remains in force
until changed or until a System Reset.
Note: The intial setting (out of the box, or after a System Reset) causes
the radio to ignore weaker (or more distant) signals.
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Presetting stations
You may store your preferred DAB and FM radio stations to the preset
station memories. There are 20 memory presets in your radio, 10 for DAB
and 10 for FM. Presets are remembered by your radio in the event of a
power failure.
The procedure for setting presets and using them to tune to stations is the
same for FM and DAB modes and is described below.
1. Press the On/Off button to switch on the radio.
2. Select the desired waveband and tune to the required station as
previously described.
3. Press and release the Preset button.
4. Rotate the Tuning/Select control to select the desired preset station
number under which you wish to store the station. The display will show,
for example, 'EMPTY 1' if no station has been stored to that preset.
5. Press and hold down the Preset button until the display shows, for
example 'P1 SAVED'. The station will be stored under the chosen
preset. Repeat this procedure for the remaining presets.
Note: Some of the presets may have already been stored as part of the
factory test procedure. Stations which have been stored in preset memories
may be overwritten by following the above procedure.
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If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 18
Recalling a preset station
1. Press the On/Off button to switch on the radio.
2. Select the required waveband as previously described.
3. Press and release the Preset button. The display will show, for
example, 'EMPTY 1' if no station has been stored to that preset. If a
preset has been stored, then the display will show either the station
name (for DAB stations) or the frequency (for FM stations).
4. Rotate the Tuning/Select control to select the desired preset station.
5. Press the Tuning/Select control. Your radio will tune to
the chosen preset station stored in the preset memory.
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Software version
The software display cannot be altered and is just for your reference.
1. Press the On/Off button to switch on the radio.
2. Press and release the Station/Menu button and then rotate the Tuning/
Select control until 'SYSTEM' appears on the display.
3. Press the Tuning/Select control and then rotate the control until
'SW VER' shows on the display.
4. Press the Tuning/Select control to display the software version.
5. Repeatedly press the Station/Menu button to return to the normal
radio display.
USB socket for software upgrade
Software updates for your Classic DAB may be available in the future. If
you register your product at www.robertsradio.co.uk/register and include
a valid e-mail address you will receive notification of software updates.
As software updates become available software and information on how
to update your radio can be found at www.robertsradio.co.uk/support
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