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

Specications ....................................................................18

Circuit features ..................................................................18

Guarantee..........................................................................19

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)

7. On/Off button

8. Volume control

9. Tuning Up/Down buttons

10. Select button

11. Preset buttons

35 6

Controls

12. Battery compartment

13. Telescopic aerial

14. Headphone socket

15. DC jack socket

(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.

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.

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.

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.

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.

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.

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 unlled rectangle

indicates minimum signal level required for satisfactory reception.

3. Press the Select button to exit the signal strength display.

1,3

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