Roberts Gemini 28 RD-28 User manual

RD-28

Please read this manual before use

ROBERTS

Sound for Generations

DAB digital radio

Controls ...............................................................................2

Battery operation .................................................................3

Mains operation...................................................................3

Operating your radio ...........................................................4

Selecting a station ..............................................................5

Secondary services ............................................................6

Display modes ....................................................................6

Finding new stations ...........................................................7

Autoselect ...........................................................................7

Manual tuning .....................................................................8

Signal strength display .......................................................8

Favourite button .................................................................9

Recalling your favourite station ..........................................9

System reset .....................................................................10

Headphone socket ............................................................11

Line out socket ..................................................................11

Display backlight ...............................................................11

General..............................................................................12

Speciﬁcations ....................................................................12

Circuit features ..................................................................12

Mains Supply.....................................................................13

Guarantee .........................................................................14

Contents

If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri) 2

Controls

1. On/Off button

2. Mains LED indicator

3. Line out socket (on rear)

4. Telescopic aerial (on rear)

5. Headphone socket (on end)

6. Tuning control

(Top)

1 4

12 89

7. Favourite button

8. Info button

9. Select button

10. Auto Tune button

11. Liquid crystal display (LCD)

12. Volume control

Battery operation

1. Remove the Battery cover on the rear of the unit by pushing the

battery door in and downwards.

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 inside 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-28 is used on the

mains 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.

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.

• IMPORTANT: The mains plug 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

plug should be removed from the mains socket outlet completely.

4. When the mains LED is off, it indicates that the radio is completely

disconnected from the mains.

If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri) 4

Operating your radio

1. Fully extend the telescopic aerial

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 complete 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

a position giving better reception.

Selecting a station

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 sta-

tions.

3. Press and release the Select button to select the station. The display

may show Tuning while your radio ﬁnds 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.

If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri) 6

Display modes

Your radio has ﬁve display modes:-

1. Press the 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.

Secondary services

1. Certain radio stations have one or more secondary services associ-

ated 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 turn the tuning control.

Finding new stations

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 showAutotune

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 showAutotune 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

As an alternative to pressing the Select button 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 down the Select button 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.

3. To switch off autoselect rotate the Tuning control a few clicks in either

direction, immediately press and hold down the Select button until

the display shows Autoselect OFF.

If you need any further advice, please call our Technical Helpline on :-

020 8758 0338 (Mon-Fri) 8

Manual tuning

Manual tuning allows you to tune directly to the various Band III DAB chan-

nels. UK DAB stations are currently located in the range 11B to 12D.

1. Press and hold down the Select button until the display shows Manual

tune. Release the Select button.

2. Rotate the Tuning control to select the required DAB channel.

3. Press and release the Select button 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 Select button to return to normal tuning

mode.

Signal strength display

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.

3. The clear unﬁlled rectangle indicates minimum signal level required

for satisfactory reception.

Favourite button

Your radio is ﬁtted with a button which when pressed will automatically

tune to your favourite station. This will allow you to store a total of one

station from the DAB waveband.

1. To setup your favourite station, tune into the required station.

2. Press and hold down the Favourite button (15 sec) until the display

shows Favourite stored.

Recalling your favourite station

1. Press the On/Off button to switch on the radio.

2. Momentarily press the Favourite button, your radio will tune to the

station stored in favourite memory.

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