Roberts Duet 2 User Manual

Please read this manual before use

DAB/FM RDS digital radio

ROBERTS

Controls ........................................................................... 2-4

Battery operation .................................................................5

Using the AC adaptor ..........................................................6

Operating your radio - DAB .................................................7

Selecting a station - DAB.....................................................8

Secondary services - DAB...................................................8

Display modes - DAB ..........................................................9

Finding new stations - DAB ...............................................10

Signal strength display - DAB ............................................10

Manual tuning - DAB .........................................................11

Dynamic range control - DAB ............................................12

Operating your radio - FM .................................................13

Manual tuning - FM............................................................14

Display modes - FM...........................................................15

FM Stereo/Mono function (headphones only) ...................16

Scan sensitivity setting FM ................................................17

Presetting stations .............................................................18

Recalling a preset ..............................................................18

Favourite station button .....................................................19

Software version ................................................................20

Contents

System reset......................................................................21

Headphone socket.............................................................22

Auxiliary input socket .........................................................23

USB socket for software upgrade ......................................23

General ..............................................................................24

Display backlight................................................................24

Specifi cations ....................................................................25

Circuit features ..................................................................25

Guarantee..........................................................................26

1

2

Controls

1. On / Off button

2. Band button

3. Favourite button

4. Info / Menu button

5. Auto Tune button

(Top)

6. Preset buttons

7. LCD display

8. Low battery indicator

1 2 3 4 5

6

8

7

3

Controls

(Right side)

9. Tuning control

10. Volume control

11. Tone control

12. Headphone socket

9

10

11

12

4

Controls

(Back)

13. USB socket for software upgrades

14. Telescopic aerial

15. Auxiliary input socket

16. DC input socket

17. Battery compartment

13

14

15

16

17

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 compartment.
Take care to ensure all batteries are inserted with the correct polarity as
shown inside the battery compartment. Replace the battery cover.

3. When the batteries are exhausted, the battery low indicator will show
red for a short while. The radio will then switch itself off. It may not be
possible to switch the radio back on until the batteries are replaced,
or until the radio is connected to the mains adaptor. 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 or
stand-by use only.

IMPORTANT: The batteries should not be exposed to excessive heat

such as sunshine, fi re 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

5

1

Using the AC adaptor

1. Place your radio on a fl at surface and plug the mains adaptor into the
DC input socket located on the rear of your radio (marked 'DC in')
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. If the mains adaptor
is plugged into the radio but not switched on then the radio will run
from the batteries if fi tted.

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.

6

7

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
"Roberts" for a few seconds.

3. If this is the fi rst time the radio is used a quick scan of the Band III
DAB channels will be carried out. This is known as "Auto tune". The
display will show "Now tuning". If the radio has been used before the
last used station will be selected.

4. During the scanning process, the lower line of the display shows a
bar-graph indicating progress of the scan.

5. When the Auto tune is completed the fi rst station (in numeric-alpha

order 0...9...A....Z) will be selected. The fi rst station in the list of stations

found will be played. The display will show the station name in the fi rst
line of the display and other information in the second line.

6. If the station list is still empty after the Auto tune your radio will display
"No Signal".

7. If no stations are found, "Service not available" 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 fi nd stations as
described on page 10 (see Finding new stations on page 10).

2

8

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.

3. Press and release the Tuning control to select the station. The display
may show "Now tuning" while your radio fi nds the new station.

4. Adjust the Volume and Tone controls to the required setting.

Note: If after selecting a station the display shows "Service not available"

it may be necessary to relocate your radio to a position giving better
reception.

The use of radio station presets for selecting your preferred radio

stations is described on page 18.

4

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 rotate the Tuning control.

2. Press the Tuning control to select the station.

3. When the secondary service shuts down your radio will automatically
switch back to the main radio station (or primary service) if it is
available.

2,3

4

1,2