RD-15
DAB digital radio
Please read this manual before use
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Controls
1
2
3
4
5
6
7
8
9
4. Auto Tune button
5. Info button
1. On/Off button
7. Tuning up/down buttons
8. Volume control
2. LCD display
6. Select button
3. Battery low indicator
9. Preset buttons
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020 8758 0338 (Mon-Fri)
Battery operation
1. Remove the Battery cover on the rear of the unit by pushing the
catch downwards. Open the battery door.
2. Insert four LR20 (D size) batteries into the spaces in the compart-
ment. Take care to ensure all batteries are inserted with the correct
polarity as shown on the rear of your radio. Close the battery door.
3. The Low battery indicator, 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 RD-15 is used via the
mains adaptor whenever possible with battery operation for occa-
sional or stand-by use only.
Using the AC adaptor
Your radio is supplied with a Mains Adaptor.
1. Place your radio on a flat surface.
2. Insert the adaptor plug into the DC socket located on the left hand
end of your radio.
3. Plug the adaptor into a standard 13 amp mains socket outlet.
Whenever the adaptor is used, the batteries are automatically
disconnected.
The AC adaptor should be disconnected from the mains supply and
the radio when not in use.
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3
Operating your radio - DAB
2
1. Carefully extend the telescopic aerial
2. Press the On/Off button to switch on your radio. The display will
show "Roberts DAB digital radio" for a few seconds.
3. If this is the first time the radio is used a quick scan of UK Band III DAB
channels will be carried out. The display will show "Autotune Quick
scan". If the radio has been used before the last used station will be
selected.
4. During Autotune as each group of stations is detected the bottom line
of the display will show its name and the station count will be updated.
The top line of the display shows a bargraph indicating progress of
the Autotune.
5. When the Autotune is completed the first station (in numeric-alpha
order 0...9...A....Z) will be selected.
6. If the station list is still empty after the Autotune your radio will display
"No Signal".
7. If no signals are found it may be necessary to relocate your radio
to a position giving better reception.
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Selecting a station - DAB
1. The top line of the display shows the name of the station currently
selected.
2. Press the Up or Down buttons to scroll through the list of available
stations.
2
2
3. Press and release the Select button to select the station. The
display may show "Tuning" while your radio finds the new station.
4. Adjust the Volume control to the required setting.
Note: If after selecting a station the display shows "Not Available" it
may be necessary to relocate your radio to a position giving better
reception.
3
4
5
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Secondary services - DAB
1. Certain radio stations have one or more secondary services asso-
ciated with them. If a station has a secondary service associated
with it the display will show ">" next to the station name on the station
list. The secondary service will then appear immediately after the
primary service when you press the Up or Down buttons.
Display modes - DAB
Your radio has five display modes:-
a
1
1. Press the Info button to cycle through the various modes.
b
c
a. Scrolling text
Displays scrolling text messages such
as artist/track name, phone in number,
etc.
b. Programme Type
c. Multiplex Name
d. Signal strength
e. Time and date
Displays type of station being listened to
e.g. Pop, Classic, News, etc.
Displays name of multiplex to which
current station belongs.
d
e
Displayssignalstrengthforstationbeing
listened to.
Displays current time and date.
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Finding new stations - DAB
As time passes new stations may become available. To find new stations
proceed as follows:-
1
2
1. Press and release the Auto Tune button, the display will show
Autotune Quick scan. Your radio will perform a scan of the UK DAB
frequencies. As new stations are found the station counter on the
right-hand side of the display will increase and stations will be added
to the list
2. To carry out a full scan of the entire DAB Band III frequencies press
and hold down the Auto Tune button for more than 2 seconds and
then release. The display will show Autotune Full scan. As new
stations are found the station counter on the right-hand side of the
display will increase and stations will be added to the list
Autoselect - DAB
1
1
As an alternative to pressing the Select button to select a station your
radio can be set so as to automatically select a station.
1. Press and release either of the Tuning buttons a few times,
immediately press and hold down the Select button until the display
shows Autoselect ON.
2. Press the Tuning buttons until the station you require is visible on
the display. After a few seconds your radio will automatically select
the station shown on the display.
3. To switch off autoselect press and release either of the Tuning
buttons a few times, immediately press and hold down the Select
button until the display shows Autoselect OFF.
1
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Manual Tuning - DAB
Manual tuning allows you to tune directly to the various Band III DAB
channels. UK DAB stations are currently located in the range 11B to 12D.
2
2
1. Press and hold down the Select button until the display shows
Manual tune. Release the Select button.
1
2. Press either of the Tuning buttons to select the required DAB
channel.
4
3. Press and release the Select button to select the channel.
4
4. Press either of the Tuning buttons to select the stations contained
3
within the Multiplex (group of stations) for the selected DAB channel.
5. Press and release the Select button to return to normal tuning
mode.
4
Signal strength display - DAB
1
1. Repeatedly press and release the Info button until the lower line
of the display shows signal strength.
2. Position your radio and carefully angle the telescopic aerial for best
reception using the signal strength display as guide. Move your radio
around and position to give maximum number of black rectangles on
signal strength display. The clear unfilled rectangle indicates mini-
mum signal level required for satisfactory reception.
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Presettingstations
1
3
There are 5 memory presets.
1. Press the On/Off button switch on the radio.
2. Tune to the required station as previously described.
3. Press and hold down the required Preset button until the display
shows e.g. Preset 1 stored. The station will be stored under the
chosen preset button. Repeat this procedure for the remaining
presets.
4. Stations stored in preset memories may be overwritten by following
the above procedure.
9
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Recalling a preset station
1
2
1. Press the On/Off button to switch on your radio.
2. Momentarily press the required Preset button, your radio will tune
to the station stored in preset memory.
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DynamicRangeControl(DRC)settings
DRC can make quieter sounds easier to hear when your radio is used
in a noisy environment.
2
1. Press the On/Off button to switch on your radio.
3
2. Press and hold in the Info button until display shows “Software.”
Release the Info button.
3. Press Tuning UP button to select DRC value setting .
4
6
4. Press the Select button to enter adjustment mode .
5
5
5. Press the Tuning Up/Down buttons 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 Select button to confirm the setting . The
display will return to radio mode.
Displaybacklight
1. The display backlight will be switched on for approximately 12
seconds when any button is pressed.
2. When your radio is powered by the AC adaptor the display backlight
will always be switched on.
11
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System reset
If your radio fails to operate correctly, or some digits on the display are
missing or incomplete carry out the following procedure.
2
1. Switch off your radio
2. Switch on your radio - press and hold down the Info button until
the display shows Software.
3
3. Repeatedly press and release the Tuning Up button until the
display shows Factory reset.
4
4. Press the Select button The display will show Press SELECT to
confirm . . . Press the Select button to confirm. A full reset will be
performed all presets and station lists will be erased. A quick scan
of UK DAB band III frequencies will be carried out.
If a problem persists our technical staff would be pleased to offer
any assistance on operating the radio. Our technical helpline number
is 020 8758 0338.
Headphone socket
A 3.5mm Headphone Socket located on the right-hand end of you radio
is provided for use with either headphones or an earpiece. Inserting a
plug automatically mutes the internal loudspeaker.
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General
Do not allow this radio to be exposed to water, steam or sand. Do not
leave your radio where excessive heat could cause damage such as in
a parked car where the heat from the sun can build up even though the
outside temperature may not seem too high.
Specifications
Power Requirements
Circuit Features
Loudspeaker
AC adaptor
Batteries
AC 230 volts, 50Hz
4 x LR20 (D size)
only
75mm4ohms
800mW into 4ohms
3.5mmdia
Output Power
Battery Life
Approx. 30 hours of listening for 4 hours a day
at normal volume using alkaline cells.
Headphone socket
Aerial System
Frequency Coverage
Telescopic aerial
DAB 174.928 - 239.200MHz
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If you need any further advice, please call our Technical Helpline on :-
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020 8758 0338 (Mon-Fri)
Guarantee
This instrument is guaranteed for twelve months from the date of delivery to the original owner against failure due to faulty workmanship or component
breakdown, subject to the procedure stated below. Should any component or part fail during this guarantee period it will be repaired or replaced free
of charge.
The guarantee does not cover:
1. Damage resulting from incorrect use.
2. Consequential damage.
3. Receivers with removed or defaced serial numbers.
N.B. Damaged or broken telescopic aerials will not be replaced under guarantee.
Procedure:
Any claim under this guarantee should be made through the dealer from whom the instrument was purchased. It is likely that your Roberts' dealer
will be able to attend to any defect quickly and efficiently, but should it be necessary the dealer will return the instrument to the company’s service
department for attention. In the event that it is not possible to return the instrument to the Roberts' dealer from whom it was purchased, please contact
Roberts Radio Technical Services at the address shown below.
ROBERTSRADIOTECHNICALSERVICES
97-99 Worton Road
Isleworth Middlesex
TW76EG
Issue2
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