RD-8
FM RDS/DAB digital radio
with
Please read this manual before use
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1
2
3
4
5
6
Controls
(Top)
7
8
1. On/Off button
5. Auto tune button
6. Telescopic aerial (on rear)
7. Preset buttons
2. Waveband button
3.
button
8. LCD display
4. Info button
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2
020 8758 0338 (Mon-Fri)
Controls
(Right side)
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13
11
14
15
9. Headphone socket
10
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10. Tone control
11. Volume control
12. Rotary tuning control
13. Mains input socket (on rear)
14. Deep bass boost switch (on rear)
15. Battery compartment (on rear)
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3
Battery operation
1. Remove the Battery cover on the rear of the unit by pushing the
catches in the direction shown by the arrows.
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 inside the battery compartment. Replace the
battery cover.
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1
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 RD-5 is used on the
mains whenever possible with battery operation for occasional or
stand-by use only.
Mains operation
1. Place your radio on a flat surface.
2. Plug the mains lead into the Socket located on the rear of your radio
ensuring that the plug is pushed fully into the socket.
3. Plug the other end of the mains lead into a wall socket and switch on
the wall socket.
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Operating your radio - DAB
1. Fully extend the telescopic aerial.
2
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 Auto tune 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
as position giving better reception.
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5
Selecting a station - DAB
1. The top line of the display shows the name of the station currently
selected.
2. Rotate the Tuning control to scroll through the list of available
stations. Stop rotating the Tuning control when you find the station
that you wish to hear.
3. Press and release the Tuning control to select the station. The
display may show "Tuning" while your radio finds the new station.
4. Adjust the Volume, Tone and Deep bass boost switch to the
required settings.
2
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.
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4
4
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Secondary services - DAB
1. Certainradiostationshaveoneormoresecondaryservicesassociated
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 as you rotate the tuning control clockwise.
Display modes - DAB
Your radio has six display modes:-
a
1
1. Press the Info button to cycle through the various modes.
b
c
d
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
Displays type of station being listened to
e.g. Pop, Classic, News, etc.
Displays name of multiplex to which
current station belongs.
Displayssignalstrengthforstationbeing
listened to.
e
f
e. Time and date
f. Maximum delay
Displays current time and date.
Displays maximum Pause delay for
current station (see page 11).
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7
Finding new stations - DAB
As time passes new stations may become available. To find new stations
proceed as follows:-
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1. Press and release the AutoTune 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 AutoTune 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
As an alternative to pressing the tuning control to select a station your
radio can be set so as to automatically select a station.
1. Rotate the Tuning control a few clicks in either direction, immedi-
ately press and hold in the tuning control until the display shows
"Autoselect ON".
2. Rotate the Tuning control 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.
1
3. To switch off Autoselect rotate the Tuning control a few clicks in
either direction, immediately press and hold in the Tuning control
until the display shows "Autoselect OFF".
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Manual Tuning - DAB
Manual tuning allows you to tune directly to the various DAB Band III
channels. UK DAB stations located in the range 11B to 12D.
1. Press and hold in the Tuning control until the display shows "Manual
tune".
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2. Rotate the Tuning control to select the required DAB channel.
3. Press and release the Tuning control to select the channel.
4. Rotate the Tuning control to select the stations contained within the
Multiplex (group of stations) for the selected DAB channel.
5. Press and release the Tuning control to return to normal tuning
mode.
Signal strength display - DAB
1. Repeatedly press and release the Info button until the lower line
of the display shows signal strength.
2. Position your radio and angle the telescopic aerial for best reception
using the signal strength display as a guide. Move your radio around
and position so as to give maximum number of black rectangles on
signal strength display.
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3. The clear unfilled rectangle indicates minimum signal level required
for satisfactory reception.
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Using your radio's Pause Plus feature
How many times has your favourite radio station been interrupted
by that phone call from a double glazing firm or someone selling that
must have item? Sound familiar - now with a single press of the
button you can put your favourite station on hold while
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2
you answer that important call. After the call or other important task
is finished simply press the
button to return to your
favourite station exactly where you left off so that you never miss
a single word.
Radio stations can effectively be put on hold for typically 15 minutes
butcanbeupto35minutesdependingonthestationyouarelistening
to.
Note the
feature only operates on the DAB
waveband.
1. Toplaceyourradioin
modesimplypressthe
button, the sound from the loudspeaker will be muted. The display
will alternate between PAUSE and the time which the radio station
has been on Pause.
2. To return to the radio station that you were listening to simply press
the
button and your radio will continue playing from
where you left off. The display will alternate between DELAY and
the amount by which you are behind real time.
3. When using your radio's
feature the lower line of display
automatically switches to show the Maximum delay time for the
station you are listening to.
4. To return to real time press in and release the Tuning control, the
display will return to show DAB in right hand corner.
4
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Pause Plus continued
1. As soon as you switch on your radio the
feature is
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working silently in the background so, say for example, you want
to hear a news item again press the twice and rotate the
tuning control anti-clockwise to scroll back to the item you wish to
listen. The display will show the amount of time you have scrolled
back.
Note the
memory only starts when your radio is
switched on.
2. When using your radio's
feature the lower line of display
automatically switches to show the Maximum delay time for the
station you are listening to.
1
1
Pause Plus memory length
By default the
this is to allow for reconfiguration of a station from say speech to music.
The memory will always follow the station reconfiguration
correctly. If you are listening to a news, play or other speech program
then the memory can be set to variable length so that you
memory is set to a fixed length of 10 minutes;
may be able to pause a station for up to 35 minutes depending on the
station you are listening to.
1. To change the
memory to variable length press and hold
button until the display shows VARIABLE
down the
Rewind Memory.
2. To change the
memory back to fixed length press and
button until the display shows FIXED
2
hold down the
Rewind Memory.
Note the
memory is cleared when changing sta-
tions, changing from fixed to variable
memory or
switching off your radio.
11
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Operating your radio - FM
1. Fully extend the telescopic aerial.
2
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3
2. Press the On/Off button to switch on your radio. The display will
show "Roberts DAB digital radio" for a few seconds.
3. Press the Band button to select the FM band.
4. Press and immediately release 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 and show station name.
6. To find other stations press and release the AutoTune button as
before.
7. To scan the FM band in a downwards direction (high frequency to low
frequency) press and hold down the AutoTune button for 0.5
seconds and then release.
8. When the waveband end is reached your radio will recommence
tuning from the opposite waveband end.
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9
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9. Adjust the Volume, Tone and Deep bass boost switch to the
required settings.
10. To switch off your radio press the On/Off button.
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Manual tuning - FM
1. Press the On/Off button to switch on your radio.
2
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2. Press the Band button to select the FM band. Fully extend the
Telescopic aerial .
3. Rotate the Tuning control to tune to a station. The frequency will
change in steps of 50kHz.
4. When the waveband end is reached the radio will recommence
tuning from the opposite waveband end.
5. Set the Volume, Tone and Deep bass boost switch to the desired
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settings.
6. To switch off your radio press the On/Off button.
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5
6
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Display modes - FM
On FM the bottom line of the display can be set to any of the following
modes:-
a
b
1. Press the Info button to cycle through the various modes.
1
a. Scrolling text
Displays scrolling text messages such
as artist/track name, phone in number
etc.
c
b. Program Type
c. Signal strength
Displays type of station being listened to
e.g. Pop, Classic, News, etc.
d
e
Displayssignalstrengthforstationbeing
listened to.
d. Time and date
e. Frequency
Displays current time and date.
Displays frequency of the station being
listened to.
f
f. Audio mode
Display shows Auto (stereo) or mono.
FM Stereo/Mono
1. If a station being received is weak some hiss may be audible. To
reduce the hiss press and hold in the Tuning control until the display
shows "Audio mode : mono" your radio will switch to mono mode.
2. To return to stereo mode press and hold in the Tuning control until
the display shows "Audio mode :Auto", your radio will switch to
stereo mode.
Note: FM stereo is only available when listening via earphone/
headphones
1
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Presetting stations - DAB and FM
There are 5 memory presets for each of the 2 wavebands.
1. Press the On/Off button switch on the radio.
2. Tune to the required station as previously described.
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3
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.
Recalling a preset station - DAB and FM
1. Press the On/Off button to switch on the radio.
2. Select the required waveband by pressing the Band button.
2
1
3. Momentarily press the required Preset button, your radio will tune to
the station stored in preset memory.
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Systemreset
If your radio fails to operate correctly, or some digits on the display are
missing or incomplete carry out the following procedure.
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1. Switch off your radio.
2. Switch on your radio - as soon as the screen shows "Roberts DAB
digital radio" press and hold in the Tuning control until the display
shows "System Reset".
3. A full reset will be performed. All presets and station lists will be
erased.
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4. If DAB was used last then a "Quick scan" of the DAB band will be
performed, otherwise a "Quick scan" will be carried out the next time
the DAB band is selected.
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.
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Headphone socket
A 3.5mm Headphone Socket located on the right-hand end of your
radio is provided for use with either headphones or an earpiece.
Inserting a plug automatically mutes the internal loudspeaker.
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 AC mains the display backlight will
always be switched on.
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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. It is recommended that the
DAB band be used wherever possible as better results in terms of quality
and freedom from interference will usually be obtained than on the FM
band.
Specifications
Circuit Features
Power Requirements
Loudspeaker
Woofer 125mm 4ohms
Tweeter 38mm 4 ohms
Mains
AC 230 volts, 50Hz
4 x LR20 (D size)
only
Batteries
Output Power
Mains
1.4 Watts
0.8 Watts
Battery Life
Batteries
Approx. 20 hours of listening for 4 hours a day
at normal volume using alkaline cells.
Headphone socket
Aerial System FM
3.5mmdia
Frequency Coverage
Telescopic aerial
FM
87.5-108MHz
DAB 174.928 - 239.200MHz
DAB Telescopic aerial
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Mainssupply
The RD-5 will operate from a supply of AC 230 volts, 50Hz
only.
The wire coloured BLUE must be connected to the terminal marked N or
coloured BLACK.
DO NOT cut off the mains plug from this equipment. If the plug
fitted is not suitable for the power points in your home or the cable is too
short to reach a power point, then obtain an appropriate safety approved
extension lead or adaptor. If in doubt consult your dealer.
The wire coloured BROWN must be connected to the terminal marked L
or coloured RED.
If nonetheless the mains plug is cut off, remove the fuse and dispose of
the plug immediately to avoid a possible shock hazard by inadvertent
connection to the mains supply.
If this product is not supplied with a mains plug, or one has to be fitted,
then follow the instructions given below:
IMPORTANT. DO NOT make any connection to the larger terminal which
is marked with the letter E or by the safety earth symbol
Green or Green-and-yellow.
or coloured
The wires in the mains lead are coloured in accordance with the following
codes :-
BLUE - NEUTRAL
BROWN - LIVE
Fuse
When replacing the fuse only a 3A ASTA approved to BS1362 type
should be used and be sure to re-fit the fuse cover.
IF IN DOUBT - CONSULT A QUALIFIED ELECTRICIAN.
Replacement fuse holders are available from Roberts Radio Technical
Services at the address shown on the rear of this manual.
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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 on the rear of this manual.
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020 8758 0338 (Mon-Fri)
ROBERTS RADIO TECHNICAL SERVICES
97-99 Worton Road
Isleworth Middlesex
TW7 6EG
Technical Helpline :- 020 8758 0338 (Mon-Fri during office hours)
Issue 1
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