Roberts Gemini 49 RD-49 Manual de usuario
FM RDS/DAB digital radio
Please read this manual before use
ROBERTS
Sound for Generations
RD-49
Controls ........................................................................... 2-3
Battery operation ............................................................. 4-5
Using the AC adaptor ..........................................................5
Operating your radio - DAB .................................................6
Selecting a station - DAB.....................................................7
Secondary services - DAB...................................................7
Display modes - DAB ..........................................................8
Finding new stations - DAB .................................................9
Signal strength display - DAB..............................................9
Manual tuning - DAB .........................................................10
Autoselect - DAB ...............................................................10
Dynamic range control - DAB............................................11
Operating your radio - FM .................................................12
Manual tuning - FM............................................................13
Display modes - FM...........................................................14
Software version................................................................15
Presetting stations.............................................................15
Recalling a preset..............................................................16
System reset......................................................................16
Contents
Headphone socket.............................................................17
Display backlight................................................................17
General..............................................................................18
Specications ....................................................................18
Circuit features ..................................................................18
Guarantee..........................................................................19
1
If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 2
Controls
1. Speaker
2. Band button
3. LCD display
4. Charge LED indicator
5. Auto Tune button
6. Menu/info button
(Front)
1
24
9
10
7. On/Off button
8. Volume control
9. Tuning Up/Down buttons
10. Select button
11. Preset buttons
11
7
8
35 6
3
Controls
12. Battery compartment
13. Telescopic aerial
15
14
12
14. Headphone socket
15. DC jack socket
13
(Back)
If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 4
Battery operation using alkaline batteries
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) alkaline 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.
3. Slide the battery switch to the Alkaline position and then replace the
battery cover.
• Important: when using alkaline batteries the battery switch must
be placed in the alkaline position. Failure to do so could result
in serious damage to the batteries or radio.
• Reduced power, distortion and a ‘stuttering’ sound are all signs that
the batteries may need replacing.
• 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-49 is used via the AC
adaptor whenever possible with battery operation for occasional or
stand-by use only. If extended listening using batteries is anticipated,
then the use of rechargeable batteries is recommended.
Battery operation using rechargeable batteries
1. Remove the battery cover on the back of the unit by sliding the cover
in the direction of the arrow.
2. Insert six Rechargeable LR6 (AA 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. The radio is
designed to be used with Nickel Metal Hydride (NiMH) rechargeable
batteries.
3. Slide the battery switch to the
Rechargeable position and then replace
the battery cover.
1
continued on next page
Using the AC adaptor
The AC adaptor for use with the RD49 should provide 12 volts DC
output at 500mA centre pin positive.
1. Insert the adaptor plug into the DC in socket on the left hand side of
your radio.
2. Plug the adaptor into a standard 13A mains socket outlet. Whenever
the adaptor is plugged in to the radio and switched on at the mains the
batteries are automatically disconnected. If the adaptor is plugged in to
the radio but not switched on then the radio will run from the batteries
if tted.
The AC adaptor should be disconnected from the mains supply and
the radio when not in use.
5
4. The charge light will ash indicating batteries are charging. Batteries
will be fully charged in around 7 hours.
• Important: when using rechargeable batteries the battery switch
must be placed in the rechargeable position. Batteries will only
be charged when the radio is switched off and connected to the
AC adaptor.
• Reduced power, distortion and a ‘stuttering’ sound are all signs that
the batteries may need recharging.
• 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.
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
"Roberts" for a few seconds.
3. If this is the rst 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 new stations are detected the station counter
on the right hand side of the display will increase and stations will be
added to the list. The top line of the display shows a bargraph indicat-
ing progress of autotune.
5. When the Autotune is completed the rst 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.
2
7
Selecting a station - DAB
1. The top line of the display shows the name of the station currently
selected.
2. Press the Tuning Up/Down buttons to scroll through the list of avail-
able stations.
3. Press and release the Select button to select the station. The display
may show "Tuning" while your radio nds 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.
2
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 press the Tuning Up button.
2. Press the Select control to select the station.
3
2
If you need any further advice, please call our Technical Helpline on :-
020 8758 0338 (Mon-Fri) 8
Display modes - DAB
Your radio has six display modes:-
1. Press and release the Menu/Info button to cycle through the various
modes.
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 name of multiplex to which
current station belongs.
d. Signal strength Displays signal strength for station being
listened to.
e. Time and date Displays current time and date.
f. Audio type and bit rate Displays audio type and bit rate.
a
b
d
e
1
c
f
9
1
Finding new stations - DAB
As time passes new stations may become available. To nd new stations
proceed as follows:-
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.
Signal strength display - DAB
1. Press and release the Select button until the display will show 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 so as to give maximum number of black
rectangles on signal strength display. The clear unlled rectangle
indicates minimum signal level required for satisfactory reception.
3. Press the Select button to exit the signal strength display.
2
1,3
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