Roberts Radio Portable Radio Solar Powered DAB Radio User Guide

Solar powered DAB radio with rechargeable battery pack  
Please read this manual before use  
 
Controls  
(Front)  
6
1. Tuning control  
2. Volume control  
3. On/Off button  
4. Preset button  
5. Mode Button  
7
8
9
10  
11  
12  
6. Telescopic aerial  
7. Signal strength  
8. Solar charging level  
9. On charge indicator  
10. Battery indicator  
11. Info button  
5
4
12. Scan button  
3
2
1
If you need any further advice, please call our Technical Helpline on :-  
 
2
020 8758 0338 (Mon-Fri)  
Controls  
(Back)  
16  
13. DC input socket  
14. Line in socket (aux-in)  
15. Headphone socket  
16. Aerial storage slot  
13  
14  
15  
 
3
Using the AC adaptor  
Your solarDAB radio may be powered either by using an AC adaptor  
(supplied) or by using solar power.  
For prolonged life, the internal rechargeable NiMH battery pack requires  
an external conditioning charge of 24 hours prior to first use.  
1. Place your radio on a flat surface.  
2. Insert the adaptor plug into the DC socket located on the rear of your  
radio.  
3. Plug the adaptor into a standard 13 amp mains socket outlet. The  
display will show the on charge indicator and the battery indicator will  
be animated.  
4. When the batteries are fully charged, the battery indicator should  
show all segments without flashing. Remember to keep the adaptor  
connected for a period of 24 hours for the initial charge in order to  
ensure optimal conditioning of the batteries.  
The AC adaptor should be disconnected from the mains supply and the  
radio when not in use.  
Note: The mains adaptor which is supplied with your radio is a high-  
efficiency type, designed to minimise energy consumption, whether the  
radio is playing, charging its batteries, or switched off (in standby). Do not  
use any other mains adaptor in place of the unit supplied. Such use will  
invalidate your guarantee.  
IMPORTANT: The mains adaptor is used as the means of connecting the  
radiotothemainssupply.Themainssocketusedfortheradiomustremain  
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.  
If you need any further advice, please call our Technical Helpline on :-  
020 8758 0338 (Mon-Fri)  
 
4
Using solar power  
1. In order to recharge your solarDAB radio's batteries using solar power,  
positiontheradiosothatitsintegralsolarpanelreceivesdirectsunlight.  
The more sunlight that falls on the solar panel - the more electricity it  
can generate to power the radio.  
8. Keep the solar panel unobstructed and its protective lens free of dirt  
and grease. This will ensure best performance with the available  
sunlight.  
9. The battery indicator  
on the display gives an approximate  
2. The solar charging level indicator  
on the display should  
indication of the amount of charge in the batteries. Note that directly  
afteraperiodofcharging,thisbatteryindicationmayshowmorecharge  
is available than is actually present and so the indicator should only  
be used as a rough guide.  
be used as a positioning aid to achieve the greatest output from the  
solar panel. It works on a bar system similar to the battery indicator.  
3. If no bars or showing (or if the icon disappears completely) then there  
is no useful light available.  
NOTE: Best performance of the solar panel will be achieved when the sun  
is directly overhead, and the sunlight is unobstructed by clouds, foliage,  
curtains, and the like. In certain situations and poorer light conditions,  
the solar panel may not be effective and should not be relied upon as the  
primary energy source for standard usage. The solar panel is designed  
as a supplementary energy source which under suitable light conditions  
is able to contribute up to 100% of the radio's energy requirement.  
4. If less than half the available bars are showing, then there is some  
power from the solar panel which can supplement the batteries in  
operating the radio. The radio may be used and the batteries will last  
longer than if there was no solar assistance.  
5. If more than half the available bars are showing then there is enough  
sunlight for the panel to operate the radio and simultaneously provide  
some charge to the battery pack.  
The solar panel will only deliver power to the radio, or charge the batteries  
under natural sunlight. It will not deliver charge in artificial light.  
Do NOT attempt to charge the batteries by placing the solar panel directly  
under any kind of sun-lamp. This will cause irreversible damage to the  
radio and may damage the casing.  
6. If all of the bars are shown, then there is sufficient power from the  
solar panel to charge the battery and to power the radio at a moderate  
volume.  
7. While it is possible for the solar panel to power the radio in the absence  
of the internal battery pack, the radio should not be used in this way.  
It is strongly recommended that the battery pack is ALWAYS installed  
when the radio is being used.  
 
5
Operating your radio for the first time  
For prolonged life, the internal rechargeable NiMH battery pack requires  
an external conditioning charge of 24 hours prior to first use. Please see  
page 4.  
1
1. Remove the aerial from its storage slot at the back of the radio and  
carefully screw it into its position on the top left of the radio. Carefully  
extend the telescopic aerial.  
2. Press the On/Off button to switch on your radio. The display will light  
and will show the language options.  
3. Scroll through the language options on the display by rotating the  
Tuning control.  
2
4. PresstheTuningcontrol toselecttherequiredlanguage.Thecountry  
option will then show on the display.  
5. Scroll through country options on the display by rotating the Tuning  
control.  
6. Press the Tuning control to select the required country. Your radio  
will automatically begin scanning for DAB radio stations.  
3-6  
If you need any further advice, please call our Technical Helpline on :-  
 
6
020 8758 0338 (Mon-Fri)  
7. If this is the first time the radio is used a quick scan of UK Band 3  
DAB channels will be carried out (or of the channels for the selected  
region, if different). The display will show "Auto tune selected...".  
8. As new stations are detected during autotune the station counter on  
the right hand side of the display will increase and stations will be  
added to the list.  
9. When the autotune is completed the first station (in numeric-alpha  
order 0...9...A...Z) will be selected. If the radio has been used before  
then the last used station will be selected.  
10. If the station list is still empty after the autotune your radio will display  
"No Signal".  
11. If you see the "No Signal" message or if no DAB radio stations are  
found it may be necessary to relocate your radio to a position giving  
better reception. You should then press the Scan button to rescan  
for DAB radio stations.  
When your radio has tuned to a station, the signal strength indicator  
shows whether there is a strong or a weak signal present. Ideally, at least  
two bars should be showing for good reception.  
Note: Your radio will remember the station last tuned to when you switch  
it off. In addition, if you were listening using the radio's auxiliary input,  
the radio will also remember that you were using it in that way. When  
you wish to listen to DAB radio again, press the Mode button to reselect  
DAB mode.  
 
7
Selecting a station  
1. The top line of the display shows the name of the station currently  
being listened to.  
2. RotatetheTuningcontroltoscrollthroughthelistofavailablestations.  
Note that the arrow pointer on the left side of the display shows the  
station that will be tuned to. This may be on the upper or lower line of  
the display depending on the direction of scrolling.  
2-3  
3. PressandreleasetheTuningcontroltoselectthedesiredstation.The  
display may show "Tuning..." while your radio finds the new station.  
4. Rotate 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.  
The radio will attempt to re-tune to the previous radio station.  
4
The use of the station presets for storing and selecting favourite radio  
stations is described on page 10.  
Secondary services  
1. Certain radio stations can have one or more secondary services  
associated with them. These are supplementary stations which a  
broadcaster may transmit at particular times, or for particular events  
- the BBC's Daily Service programme is an example.  
2. The secondary service will appear in the list of available radio stations  
sorted alphabetically. Rotate and then press the Tuning control to  
select the desired station. At the end of the broadcast, the radio will  
automatically switch to the primary radio station for that service.  
If you need any further advice, please call our Technical Helpline on :-  
 
8
020 8758 0338 (Mon-Fri)  
Display modes - DAB  
Your radio has five display modes which can show information provided  
by the broadcaster in addition to the name of the radio station:-  
a
b
c
1. Press the Info button to cycle through the various modes.  
1
a. Scrolling text  
b. Multiplex Name  
c. Frequency  
Displays scrolling text messages such as  
artist, track name, phone in number etc.  
Displays the name of DAB multiplex to  
which the current station belongs.  
Displays the frequency of the DAB  
multiplex for the station listened to.  
d
e
d. Bit rate & audio type  
e. Time  
Displays the digital bit rate & audio type  
for the station being listened to.  
Displays the current the time.  
 
9
Presetting stations  
There are 10 memory presets for the DAB waveband.  
1. Press the On/Off button to switch on your radio and tune to the  
required station as previously described.  
2
1
2. Press the Preset button. The display shows, either "Preset 1 free",  
or the name of the station already stored in Preset 1.  
3. Rotate the Tuning control to choose from presets 1 to 10 and press  
and hold the Tuning control. Keep the control pressed while the  
station name flashes on the lower line of the display and release the  
control when the station name re-appears on the upper line of the  
display. The station will be stored under the chosen preset button.  
Repeat this procedure for the remaining presets as desired.  
3
4. Stations stored in the presets may be overwritten by following the  
above procedure.  
Recalling a preset  
1. Press the On/Off button to switch on your radio.  
2
1
2. Press the Preset button. The display shows, either "Preset 1 free",  
or the name of the station already stored in Preset 1.  
3. Rotate the Tuning control to choose from presets 1 to 10.  
4. Momentarily press the Tuning button. Your radio will then tune to the  
station stored in the preset memory.  
3-4  
If you need any further advice, please call our Technical Helpline on :-  
 
10  
020 8758 0338 (Mon-Fri)  
Finding new stations - in the UK  
As time passes new stations may become available. To nd new stations  
proceed as follows:-  
1. Press and release the Scan button. The display will show "Auto tune  
selected". 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.  
1
Finding new stations - outside the UK  
If you are operating your radio in a country other than the UK you will  
need to follow these steps. In many countries DAB stations are located  
in frequency Band 3. Some countries use the L band frequencies either  
instead of or in addition to Band 3.  
1
1. Press and hold the Scan button. The display will list the scan options  
available. These include some specific European countries. For other  
regions you will have the choice of Band 3 or L-band depending on  
the frequencies in use.  
2. Either choose the "Country" option and then choose the required  
country, or rotate the Tuning control until "DAB (all)", "Band 3 (all)"  
or "L Band (all)" is selected with the arrow on the display.  
3. PressandreleasetheTuningcontrol.Yourradiowillscantheselected  
2-3  
band for available stations.  
If you are uncertain regarding the frequencies used for DAB radio in your  
location, then select the "DAB (all)" option.  
 
11  
Finding new stations - manual tuning  
Normally, you will use the auto tune feature as described above to find  
new radio stations. Should you need to search for DAB radio stations at  
a particular frequency, please use the following procedure.  
1
1. Press and hold the Scan button. The display will list the scan options  
available.  
2. Rotate the Tuning control until "Band 3" or "L Band" is selected with  
thearrowonthedisplay, dependingonwhichfrequencybandyouwish  
to tune to.  
3. Press and release the Tuning control. The display will then offer  
you a range of frequency blocks, named according to the DAB  
specifications  
2-5  
For Band 3, the frequency blocks are named 5A through 13F  
For L Band, the frequency blocks are named LA through LW  
4. RotatetheTuningcontroluntilthedesiredfrequencyblockisselected  
with the arrow on the display.  
5. Press and release the Tuning control to initiate a scan of the selected  
frequency.Ifanynewradiostationsarefound,thenthereportednumber  
of services will increase, and the new radio stations will be added to  
the list stored in the radio.  
After scanning, the radio will return to the radio station previously tuned.  
If you are uncertain regarding the frequencies used for DAB radio in your  
location, then select the "DAB (all)" option.  
If you need any further advice, please call our Technical Helpline on :-  
 
12  
020 8758 0338 (Mon-Fri)  
System reset  
If your radio fails to operate correctly, or some digits on the display are  
missing or incomplete, or if you wish to restore your radio to its initial  
settings, please carry out the following procedure.  
1
1. Press and hold down the Info button.  
2. While keeping the Info button pressed, simultaneously rotate the  
Tuning control until the display shows "Reset?".  
3. Rotate the Tuning control to Select either "Yes" to reset or "No" to  
return to normal tuning.  
2-4  
4. If you wish to perform the reset operation, rotate the Tuning control  
until "Yes" is selected and then press the Tuning control to confirm.  
A full reset of your radio will be performed. All presets and station lists  
will be erased.  
5. Afterasystemresetyouwillneedtoreselectthelanguageandcountry  
settings. A scan of the required DAB band will then be performed.  
Note: The number in the lower right of the display is a software version  
number and is provided purely for reference.  
In case of malfunction due to electrostatic discharge, reset the product  
(reconnection of power source may be required) to resume normal op-  
eration.  
If a problem persists our technical staff would be pleased to offer  
anyassistanceonoperatingtheradio. Ourtechnicalhelplinenumber  
is 020 8758 0338.  
 
13  
Headphone socket  
A3.5mm Headphone Socket located on the back of your radio is provided  
forusewitheitherheadphonesoranearpiece.Insertingaplugautomatically  
mutes the internal loudspeaker.  
IMPORTANT:Excessivesoundpressurefromearphonesandheadphones  
can cause hearing loss.  
Auxiliary input socket  
1. Connect a stereo or mono audio source (e.g. CD player, iPod, MP3  
player) to the Auxiliary input socket.  
2. Press the Mode button to select the auxiliary input. "Line in" will show  
on the display.  
3. Adjust the Volume control for comfortable listening.  
4. When you wish to listen to DAB radio again, press the Mode button  
to reselect DAB mode.  
If you need any further advice, please call our Technical Helpline on :-  
 
14  
020 8758 0338 (Mon-Fri)  
Display backlight  
Battery Pack  
1. When running the radio on batteries (with or without solar assistance),  
the display backlight will be switched on for approximately 12 seconds  
when any button is pressed. Note that when the battery is almost  
exhausted,theradiowillnotswitchonthebacklightinordertoconserve  
energy.  
Thebatterypackwhichisbuiltintoyourradioisdesignedtoprovideseveral  
years of service. When the batteries can no longer store sufficient energy  
to power your radio after having been charged they should be replaced.  
Replacement battery packs will be available from Roberts Radio.  
2. When your radio is powered by AC mains the display backlight will  
be switched on for approximately 3 minutes when any button is  
pressed.  
Theoldbatterypackshouldberecycledordisposedofinanenvironmentally  
friendly way as prescribed by your local regulations.  
Your radio should not be exposed to dripping or splashing and that  
no objects filled with liquids, such as vases, shall be placed on the  
radio.  
It is recommended to operate the product such that there is a minimum  
distance (10cm recommended) to adjacent objects in order to ensure  
good ventilation.  
The ventilation of the product should not be restricted by covering it or  
its ventilation openings with items such as newspapers, tablecloths,  
curtains etc.  
General  
Do not allow this radio to be exposed to water, steam or sand. Do not  
leave your radio where excessive heat could cause damage such as in  
a parked car where the heat from the sun can build up even though the  
outside temperature may not seem too high.  
The name plate is located on the back of your radio.  
No naked flame sources such as lighted candles should be placed on  
the product.  
It is recommended to avoid using or storing the product at extremes  
of temperature. Avoid leaving the unit in cars in direct sunlight.  
Note that normal use of the solar panel by placing the radio in the sun  
on a windowsill, in a conservatory or in a similar location is intended and  
should not harm your radio.  
 
15  
Specifications  
Circuit Features  
Loudspeaker  
Output Power  
Headphones  
Aerial System:  
80mm  
Power Requirements  
Mains  
AC 230 volts, 50Hz  
only (adaptor)  
1W  
Batteries  
Built in NiMH 3 x AA cell battery pack  
Stereo, 3.5mm diameter socket  
Battery Life  
Solar Power  
Up to 27 hours on full charge at moderate volume  
Continuous play under adequate sunlight  
DAB Band 3  
DAB L-band  
Telescopic aerial  
Internal aerial  
Frequency Coverage  
DAB Band 3  
DAB L-band  
174.928 - 239.200MHz  
1452 - 1492MHz  
The Company reserves the right to amend the specification without notice  
If you need any further advice, please call our Technical Helpline on :-  
 
16  
020 8758 0338 (Mon-Fri)  
Notes  
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17  
Guarantee  
This instrument is guaranteed for twelve months from the date of delivery to the original owner against failure due to faulty workmanship or component  
breakdown, subject to the procedure stated below. Should any component or part fail during this guarantee period it will be repaired or replaced free  
of charge.  
The guarantee does not cover:  
1. Damage resulting from incorrect use.  
2. Consequential damage.  
3. Receivers with removed or defaced serial numbers.  
N.B. Damaged or broken telescopic aerials will not be replaced under guarantee.  
Procedure:  
Any claim under this guarantee should be made through the dealer from whom the instrument was purchased. It is likely that your Roberts' dealer  
will be able to attend to any defect quickly and efficiently but should it be necessary the dealer will return the instrument to the Company’s service  
department for attention. In the event that it is not possible to return the instrument to the Roberts' dealer from whom it was purchased, please contact  
Roberts Radio Technical Services at the address shown on the rear of this manual.  
These statements do not affect the statutory rights of a consumer.  
If you need any further advice, please call our Technical Helpline on :-  
 
18  
020 8758 0338 (Mon-Fri)  
ROBERTS RADIO TECHNICAL SERVICES  
97-99 Worton Road  
Isleworth Middlesex  
TW7 6EG  
Technical Helpline :- 020 8758 0338 (Mon-Fri during office hours)  
© 2008 Roberts Radio Limited  
Issue 1  
 

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