Roberts RD-45 User manual

DAB/DAB+/FM RDS digital radio
Please read this manual before use
ROBERTS
RD-45

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 options - DAB..........................................................8
Finding new stations - DAB .................................................9
Signal strength display - 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 options - FM..........................................................15
FM Stereo/Mono (headphones only).................................15
Presetting stations.............................................................16
Recalling a preset..............................................................16
Favourite station button.....................................................17
Language function.............................................................18
Contents
Software version................................................................19
Display backlight................................................................19
System reset......................................................................20
Headphone socket.............................................................21
Line out socket ..................................................................21
USB socket for software upgrades....................................21
General..............................................................................22
Specifications ....................................................................22
Circuit features ..................................................................22
Guarantee.............................................................Back page
1

2
On
DAB/FM
DAB/DAB+/FM RDS Digtial Portable Radio
Controls
1. Telescopic aerial
2. On / Off button
3. On indicator
4. DAB/FM button
5. Auto Tune button
6. Menu button
7. Info button
(Front)
4
3
11
8. Preset buttons 1-4
9. Favourite button
10. Select button
11. Volume control
12. Tuning Down button
13. Tuning Up button
14. LCD display
9
10
1
2
5
6
7
8
12
13
14

3
Controls
15. Headphone socket
16. Line out socket
17. DC jack socket
19
15
18. USB socket (for service use only)
19. Battery compartment
(Back)
16 17 18

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 LR14 (C 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 RD-45 is used via the
AC adaptor whenever possible with battery operation for occasional
or stand-by 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. Insert the adaptor plug into the DC in socket on the rear of your
radio.
2. Plug the adaptor into a standard mains socket outlet. 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

6
Operating your radio - DAB
1. Carefully extend the telescopic aerial.
2. Press and release the On/Off button to switch on your radio. The On
indicator will light and the display will show 'Roberts Enjoy Listening'
for a few seconds.
3. If this is the first time the radio is used a scan of the Band III DAB
channels will be carried out. If the radio has been used before the last
used station will be selected.
4. During the scanning process, the display will show 'Scanning' and as
each group of stations is detected the station count will be updated.
The bottom line of the display shows a bar graph indicating progress
of the scan.
5. When the scan 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. The display will show the station name in the
first line of the display and other information in the second line.
6. If no signals are found 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).
2
Roberts
Enjoy Listening
Scanning... 24
BBC R2
Connecting...
DAB

7
Selecting a station - DAB
1. The top line of the display shows the name of the station currently
selected.
2. If required, press and release the DAB/FM button until the DAB mode
is selected.
3. Press and release the Tuning Up or Down buttons to scroll through
the list of available stations.
4. Press and release the Select button to select the station. The display
may show 'Connecting' while your radio finds the new station.
5. Rotate the Volume control to the required setting.
Note: If no signal is found it may be necessary to relocate your radio
to a position giving better reception.
3
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
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 press the Tuning Up button.
2. Press and release the Select button to select the station.
3
4
2
2
PlntRock
Connecting...
DAB
Station list
BBC R4
1Station list
BBC R5L
Station list
BBC R5SX
DAB
Mode

8
Display options - DAB
Your radio has a range of display options when in DAB mode:-
1. Press and release the Info button to cycle through the various options.
a. Scrolling text Displays scrolling text messages such
as artist/track name, phone in number,
etc.
b. Programme type Displays type of station being listened to
e.g. Pop, Classic, News, etc.
c. Multiplex Name Displays the name of the DAB multiplex
to which the current station belongs.
d. Time and date Displays the current time and date.
e. Channel & frequency Displays the current channel number and
frequency.
f. Bit rate Displays the digital bit rate.
g. Signal error Displays the quality of the received DAB
signal for the current station. Lower
numbers mean that the radio is receiving
a better signal. See also Signal
Strength display on the next page.
a
d
b
f
c
1
e
g
BBC R2
Now playing on t
DAB
BBC R2
Culture
DAB
BBC R2
BBC National DAB
DAB
BBC R2
11:32 27-11-2013
DAB
BBC R2
12B 225.648MHz
DAB
BBC R2
128kbps
DAB
BBC R2
Signal error: 2
DAB

9
1
Finding new stations - DAB
As time passes new stations may become available. To find new stations
proceed as follows:-
1. Press and release the Auto Tune button. The display will show
'Scanning'. Your radio will perform a scan of the Band III DAB channels.
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.
Signal strength display - DAB
1. While the radio is tuned to a DAB station, press and release the Select
button to switch between the current display mode and a bar graph
which shows the currently received signal strength.
2. Position your radio and carefully angle the telescopic aerial for best
reception using the signal strength display as a guide. Move your radio
around and position the aerial so as to give maximum number of black
rectangles on the signal strength display. The large unfilled rectangle
indicates minimum signal level required for satisfactory reception.
3. Press and release the Select button again to exit the signal strength
display.
1,3
Scanning... 24
BBC R2

10
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 release the Menu button.
2. Press and release either the Tuning Up or Down buttons until the
display shows 'Manual tune'.
3. Press and release the Select button to enter the manual tune mode.
4. Press and release either the Tuning Up or Down buttons to select
the required DAB channel.
5. Press and release the Select button to select the required DAB
channel. The large unfilled rectangle shows you the minimum signal
strength needed for good DAB reception. The signal strength bars will
go up and down showing the changing signal strength as you adjust
the telescopic aerial or your radios position.
6. When a DAB signal is found, the display will show the name of the
DAB multiplex. Any new radio stations found will be added to the list
stored in the radio.
7. Press and release the Select button to return to normal tuning.
3-7
1
2,4
2,4
or Select
Manual tune
Manual tune
11D 222.064MHz
11D 222.064MHz
Classic
Playing
DAB

11
1
Dynamic Range Control (DRC) settings - DAB
DRC can make quieter sounds easier to hear when your radio is used in
a noisy environment.
1. Press and release the On/Off button to switch on your radio.
2. Press and release the Menu button.
3. Press and release the Tuning Up or Down buttons until the display
shows 'DRC'.
4. Press and release the Select button to enter the adjustment mode.
The current DRC setting will be marked with an asterisk.
5. Press and release the Tuning Up or Down buttons to select the
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 normal tuning mode.
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.
2
4,6
3,5
3,5
or Select
DRC
DRC
DRC 0
*
DRC
DRC 1/2
*
DRC
DRC 1
*

12
Prune stations - DAB
Over time, some DAB services may stop broadcasting, or may change
location and then not be able to receive a station. In order to remove such
stations from the DAB station list, the Prune stations function will delete
the DAB stations from your station list that can no longer be received.
1. Press and release the On/Off button to switch on your radio.
2. Press and release the DAB/FM button until the DAB band is selected.
3. Press and release the Menu button.
4. Press and release the Tuning Up or Down buttons until the display
shows 'Prune'.
5. Press and release the Select button.
6. Press and release the Tuning Up or Down buttons to highlight 'Yes'.
Press and release the Select button to cause the stations list to be
pruned, eliminating unavailable stations.
7. If you do not wish to prune stations highlight 'No' in step 6 and then
press and release the Select button. The display will revert back to
the previous display.
3
5-7
4,6
4,6
or Select
Prune
Prune?
No <Yes>
2
Prune?
<No> Yes

13
Operating your radio - FM
1. Carefully extend the telescopic aerial.
2. Press and release the On/Off button to switch on your radio.
3. Press and release the DAB/FM button to select the FM mode.
4. Press and release the Tuning Up button and then press and release
the Auto Tune button. Alternatively press and hold the Tuning Up
button for 2 - 3 seconds. 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 release the Tuning Down button and then press the Auto
Tune button. Alternatively press and hold the Tuning Down button
for 2 - 3 seconds. Your radio will 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 and release the On/Off button.
3
2,9
4
6
4,6
Note: If you find that FM reception is poor, try repositioning the Telescopic
aerial. Fully extend and position vertically for optimum reception. If you
find that an FM broadcast has a lot of background hiss, this may often
be reduced by setting the radio into Mono reception mode for the current
FM station. Please refer to the section 'FM Stereo/Mono' on page 15 for
further details.
FM
Mode
103.40MHz
Searching...
89.30MHz
Searching...

Manual tuning - FM
1. Press and release the On/Off button to switch on your radio.
2. Press and release the DAB/FM button to select the FM mode. Fully
extend the Telescopic aerial.
3. Press and release either the Tuning Up or Down buttons 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. Rotate the Volume control to the required setting.
6. To switch off your radio press and release the On/Off button.
14
2
1,6
3
3
5
FM
Mode
103.40MHz
Note: If you find that FM reception is poor, try repositioning the Telescopic
aerial. Fully extend and position vertically for optimum reception. If you
find that an FM broadcast has a lot of background hiss, this may often
be reduced by setting the radio into Mono reception mode for the current
FM station. Please refer to the section 'FM Stereo/Mono' on page 15 for
further details.

15
Display options - FM
Your radio has a range of display options for the 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 Info button to cycle through the various options.
a. Scrolling text Displays scrolling text messages such
as artist/track name, phone in number
etc.
b. Programme type Displays type of station being listened to
e.g. Pop, Classic, News, etc.
c. Station name Displays the name of the FM station
being listened to.
d. Time and date Displays the current time and date.
FM Stereo/Mono (headphones only)
1. If an FM station being received is weak, some hiss may be audible. To
reduce the hiss, press and release the Select button until the display
shows 'Mono', your radio will switch to mono mode.
2. To return to stereo mode, press and release the Select button until
the display shows 'Stereo', your radio will switch to stereo mode.
a
b
c
d
1
1,2
BBC R2
The latest news
St
BBC R2
Pop Music
St
BBC R2
11:32 27-11-2013
St
BBC R2
BBC R2
St
89.30MHz
Mono
89.30MHz
Stereo

Presetting stations
There are 4 memory presets for each of the two wavebands which
allow you to quickly tune the radio to your favourite stations. Presets are
stored in a memory which remembers the settings even when the radio
is switched off.
1. Press and release the On/Off button to switch on your radio.
2. Tune to the required station as previously described.
3. Press and hold the required Preset button until the display shows e.g.
'Preset 1 Saved'. The station will be stored under the chosen preset
button. Repeat this procedure for the remaining presets.
4. Stations stored in the memories may be overwritten by following the
above procedure.
Recalling a preset
1. Press and release the On/Off button to switch on your radio.
2. Select the required waveband.
3. Momentarily press and release the required Preset button. Your radio
will tune to the station stored in preset memory. The display will show
for example, 'Preset 1 Empty' if no station has been stored to that
preset.
16
13
13
PlntRock
Preset 1 Saved
PlntRock
Connecting...
DAB

17
Favourite station button
Your radio has a Favourite Station button which can automatically select
the required waveband and tune to your favourite station. This button can
store one favourite station from either the FM or DAB waveband.
1. To set up your favourite station, tune into the required station.
2. Press and hold down the Favourite button (10 sec) until the display
shows 'My Fav. Saved'.
Recalling your favourite station
1. Press and release the On/Off button to switch on the radio.
2. Press and release the Favourite button, your radio will tune to
the station stored in favourite memory.
2
1
2
BBC R2
My Fav. Saved
DAB
BBC R2
Just a minute...
DAB

18
Language function
Your radio can be configured to a different language.
1. Press and release the On/Off button to switch on your radio.
2. Press and release the Menu button.
3. Press and release the Tuning Up or Down buttons until the display
shows 'Language'.
4. Press and release the Select button to enter the language adjustment
menu.
5. Press and release the Tuning Up or Down buttons until your desired
language appears on the display.
6. Press and release the Select button to confirm your choice. The
display will change to the chosen language. The chosen language
will be marked with an asterisk.
2
4,6
3,5
3,5
or Select
Language
Language
English
*

19
Software version
The software display cannot be altered and is just for your reference.
1. Press and release the On/Off button to switch on your radio.
2. Press and release the Menu button.
3. Press and release the Tuning Up or Down buttons until the display
shows 'SW version'.
4. Press and release the Select button. The display shows the software
information.
5. Press and release the Menu button to exit the software display.
2,5
4
3
3
or Select
SW version
SW version
dab-mmi-FS2052-0
Display backlight
1. When using your radio on batteries, 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.