Arcam digital radio tuner DT91 User Manual

HANDBOOK/MANUEL/HANDBUCH/HANDLEIDING  
DT91  
English  
Arcam DT91 digital radio tuner  
Tuner radio numérique DT91 Arcam  
Digitaler Radiotuner Arcam DT91  
Arcam DT91 digitale radio tuner  
Français  
Deutsch  
Nederlands  
Contents  
Using this handbook  
Safety guidelines.......................................E-2  
Safety compliance ................................E-2  
Using this handbook..............................E-3  
Positioning the unit...............................E-4  
Connecting up......................................E-4  
This handbook has been designed to give you all the  
information you need to install, connect, set-up and use the  
Arcam DiVA DT91. The remote control handset supplied with  
the equipment is also described.  
It may be that the DT91 has been installed and set-up as  
part of your Hi-Fi installation by a qualified Arcam dealer.  
In this case, you may wish to skip the sections of this  
handbook dealing with installation and setting up the unit,  
and move directly to the sections dealing with using the  
player. Use the contents list to guide you to these sections.  
Installation...............................................E-4  
Setting up the aerial .............................E-5  
Using your tuner .......................................E-6  
Front-panel controls..............................E-6  
Safety  
Safety guidelines are set out on page 2 of this handbook.  
Many of these items are common sense precautions, but for  
your own safety, and to ensure that you do not damage the  
unit, we recommend that you read them. This is a class 1  
product and requires an earth connection.  
The CR-389D remote control.......................E-8  
Technical specifications...............................E-9  
Remote-control codes .............................. E-10  
Guarantee .............................................. E-10  
On line registration ............................. E-10  
Introduction....................................... E-11  
Command Specifications...................... E-12  
DT91  
E-3  
 
Installation  
Positioning the unit  
n
n
n
Place the DT91 on a level, firm, surface, avoiding direct sunlight and sources of heat or damp.  
Avoid placing the DT91 on top of a power amplifier or other source of heat.  
The DT91 may run warm during normal operation, so avoid placing the DT91 in an enclosed  
space such as a bookcase or closed cabinet unless there is good ventilation.  
n
n
Make sure the remote-control receiver in the centre of the front panel display is unobstructed,  
otherwise remote-control will be unreliable. If line-of-sight is impractical, a remote-control  
repeater can be used with the rear panel connector. (see below).  
Avoid placing a record deck on top of this unit. Record decks are very sensitive to the noise  
generated by mains power supplies which will be heard as ‘hum’ if the record deck is too close.  
Connecting up  
Digital outputs  
The DT91 is fitted with both optical and co-axial  
digital audio outputs; the two carry the same  
information at all times. If you wish, these can  
be connected to an external DAC or your AV  
receiver, which may enhance the final audio quality.  
Alternatively, they can also be used to connect this  
tuner to a digital recording device (such as a CD-R  
or Minidisc recorder) for direct recording.  
RS232 interface  
The serial interface  
is available for  
controlling the DT91  
from a computer  
or other controller.  
The remote control  
protocol is described  
in the Appendix to this  
handbook.  
Supply voltage  
Move the slider to 115V  
or 230V, depending  
on the mains supply  
voltage in your area.  
When listening to a DAB radio station, these outputs  
carry audio with a sample rate of 48kHz; when an  
FM station is being received, the sample rate is  
32kHz.  
AUDIO OUTPUTS  
DIGITAL OUT  
L
AERIAL  
INPUT  
SUPPLY  
VOLTAGE  
R
COAX  
PROGRAM  
RS232  
REMOTE  
IN  
OPTICAL  
1
2
POWER INLET  
115/230V  
Mains lead  
Remote control in  
Aerial input socket  
Analogue audio outputs  
The appliance is normally supplied with  
a moulded mains plug already fitted to  
the lead. If for any reason the plug needs  
to be removed, it must be disposed of  
immediately and securely, as it is a potential  
shock hazard when inserted into the mains  
socket.  
If you are using this tuner  
with an amplifier that also  
features a remote bus  
(such as the Arcam DiVA  
AVR300) you can connect  
the REMOTE OUT of the  
amplifier to the REMOTE IN  
of the tuner using a 3.5mm  
jack lead.  
The coaxial cable from  
the aerial should be fitted  
with a 50Ω F-type (screw)  
connector. Connect this to  
the aerial socket on the  
back of this tuner, pushing  
the pin into the centre of  
the socket, then screwing  
on the cover to lock in  
place.  
Two pairs of stereo analogue outputs are  
provided by the DT91, both of which provide  
the same signals. Connect one pair of these  
outputs to your amplifier using a suitable  
stereo phono cable. The second output pair  
may be connected to some other audio  
device, as desired, such as a cassette deck.  
Check that the plug supplied with the unit  
fits your supply and that your mains supply  
voltage agrees with the voltage setting  
(115V or 230V) indicated on the rear panel  
of the unit.  
Note that interconnecting cables are not  
supplied with this tuner. We recommend  
the use of high-quality screened cables,  
since inferior-quality cables will degrade  
the overall quality of your system. Use  
only cables that are designed for an audio  
application as other cables will have  
different impedance characteristics that will  
degrade the performance of your system  
(for example, do not use cabling intended  
for video use to carry audio signals).  
All cables should be kept as short as is  
practically possible.  
This allows the tuner to be  
positioned out of sight while Take care not to over-  
still offering remote control, tighten the F-connector  
since commands are passed (finger tighten only – do  
through the amplifier. It  
can also be used to route  
control signals for multi-  
room use.  
If your mains supply voltage or mains plug  
is different, or you require a new lead,  
please consult your Arcam dealer.  
not use tools as this may  
damage the circuit board  
behind the connector).  
PLUGGING-IN  
See ‘Setting up the aerial’  
for further information on  
the aerial type to use.  
Push the plug (IEC line socket) of the power  
cable supplied with the unit into the socket  
(POWER INLET) in the back of the unit.  
Make sure it is pushed in firmly.  
The remote control input  
requires a mono 3.5mm  
jack, with the tip active and  
the sleeve grounded.  
It is good practice when connecting your  
equipment to make sure that the mains  
power-supply cabling is kept as far away as  
possible from your audio cables. This avoids  
unwanted noise in the audio signals.  
The remote control signals  
must be in modulated RC5  
format, with a voltage level  
of between 5V and 12V.  
DT91  
E-4  
 
Setting up the aerial  
Your new Arcam tuner is capable of superb reception, but only if it is receiving a  
good quality transmission signal.  
VHF/FM  
DAB  
If the transmission signal is strong in your area then the supplied indoor aerial  
may be sufficient (it should be hung on a wall with both wires fully stretched out  
vertically). An external aerial is recommended in order to receive the highest number  
of services.  
DAB transmissions can be in either ‘Band III’ or the ‘L-band’ (or both). To  
determine the transmission frequency in your area, contact your dealer, or refer to  
www.WorldDAB.org. In Band III transmission areas, use a multi-element Yagi  
aerial if you are a long way from a transmitter, or use an omnidirectional or folded  
dipole aerial if you are close to more than one transmitter (in the U.K., a Band III  
region, this should be mounted with the elements vertically, as the transmissions are  
vertically polarised). If the DAB services in your area are transmitted on L-band then  
consult your dealer for advice on the best aerial to use.  
You may have noticed that, although the DT91 supports both DAB and FM radio,  
there is only one aerial connector on the rear panel. If you wish to feed signals from  
both aerial types into the unit, a low-loss signal combiner must be used, as shown in  
the diagram. Otherwise, choose the aerial type for the medium you use most often.  
Whether you decide to install an external aerial, or opt to use the supplied ribbon  
cable, it should be connected to the F-type (screw) connector labelled AERIAL INPUT  
on the rear of the unit.  
Aerial combiner  
The type of aerial you should use depends on your listening preferences and the local conditions.  
If you listen exclusively to FM transmissions, for example, and the FM signal strength is strong  
in your area, then a simple omni-directional aerial mounted in your loft or on your roof may be  
sufficient. Listening to DAB in a weak signal area will require a high-gain, roof-mounted aerial.  
For the best reception of both DAB and FM signals, an aerial combiner box may be required  
(as shown in the diagram above). This combines the signals received by two aerials (one for  
DAB, the other for FM), into one cable that then connects to the DT91. If an aerial combiner  
is not used, the single aerial chosen for both DAB and FM reception may not give optimum  
performance in some regions.  
For the best advice, we recommend that you contact your local Arcam dealer or an aerial  
installation expert.  
DT91  
E-5  
 
Using your tuner  
Front-panel controls  
MENU  
Preset station selection  
Opens the configuration  
menu for the DT91. See  
the sections ‘Searching  
for radio stations: DAB’  
and “Searching for radio  
stations: FM, for further  
information.  
These buttons allow quick  
selection of up to 16 preset  
radio stations. For a preset  
between 1 and 8, press  
and release the appropriate  
button – for a preset  
SELECT  
POWER  
The SELECT button  
confirms an action  
within the configuration  
menu.  
This switches the tuner  
on and off. When the  
tuner is switched on  
the status LED is green.  
between 9 and 16, press and  
hold the appropriate button.  
DT91 FM + DIGITAL RADIO TUNER  
MENU  
1–9  
2–10  
6–14  
3–11  
7–15  
4–12  
8–16  
SELECT  
5–13  
SEARCH  
STORE  
1–8  
STORE  
9–16  
DISPLAY  
MODE  
DAB/FM  
POWER  
SEARCH  
STORE 1–8, STORE 9–16  
DAB/FM  
Control knob  
In DAB mode, pressing  
SEARCH scans for new  
DAB radio stations. See  
‘Searching for radio  
stations: DAB, for  
These buttons are used  
when specifying a preset  
Switches between DAB  
and FM mode.  
In DAB mode, rotate the  
control knob to cycle  
through stations until the  
one you wish to listen  
to is displayed. In FM  
mode, rotating the control  
knob changes the tuning  
frequency.  
location (1–8 or 9–16) to  
store a radio station. See  
‘Programming a preset  
radio station, for further  
information.  
DISPLAY MODE  
Press this button to change  
the type of information  
shown on the display (such  
as scrolling text or signal  
strength).  
further information.  
Searching for radio stations: DAB  
When using the DAB tuner section for the first time, you should perform a search to find the available  
services in your area. You may also wish to repeat the search periodically to discover if any new  
ensembles (i.e. groups of services) have gone on air, or if you move the tuner to a different area.  
To perform a search  
Ensure that the DT91 is in DAB mode (by pressing the DAB/FM button until ‘DAB’ is shown on the  
display), then press SEARCH or MENU; the display shows ‘DAB Setup: Press SELECT to scan. Press  
SELECT to start searching for new stations. The current search frequency is shown on the display as the  
search progresses.  
A complete search may take three minutes or so to complete. You cannot cancel a search once started.  
If no service is found after the search, then either your aerial is inadequate or you may be outside of the  
area covered by DAB broadcasts. Please contact your Arcam dealer for further information or advice.  
Selecting a service  
Turn the rotary controller (or press 4 or 3 on the remote control) to work through the available  
stations and to choose the one you wish to listen to. The service displayed will be selected automatically  
after a delay of about two seconds.  
Deleting services  
Under normal circumstances, you should not need to delete services from the DT91. If you move to a  
different region, however, or if a station ceases transmission, stations may be shown as available that  
can no longer be received.  
Individual stations cannot be deleted. To remove stations from the selection list that can no longer be  
received, first press the MENU button; the display shows ‘DAB Setup: Press SELECT to scan. Turn the  
control knob until the display shows ‘DAB Setup: Press SELECT to erase, then press SELECT. All services  
are deleted.  
A delete operation should always be followed by a search for available stations (as described previously)  
otherwise no DAB radio stations will be available for selection.  
DT91  
E-6  
 
Search for radio stations: FM  
To perform a search  
Ensure that the DT91 is in FM mode (by pressing the DAB/FM button until ‘FM’ is shown on the display).  
There are two methods to search for stations in FM mode. If you know the broadcast frequency of the  
station you want, turn the control knob on the front-panel until the desired frequency is displayed.  
You should then hear the required radio station. An alternative search method is to press and hold the  
4 or 3 keys on the remote control. After a delay of about one second, the DT91 begins scanning for  
the next available station. On finding a station with a strong enough signal, the DT91 stops scanning,  
plays the station and displays the station details.  
If no stations can be received, then your aerial is not providing an adequate signal. Please contact your  
Arcam dealer for further information or advice.  
Switching to mono  
In some weak signal areas it can be beneficial to force the FM tuner to mono output, as mono requires a  
much lower signal strength to produce acceptable results. Press MENU, then turn the control knob until  
‘Mono’ is displayed. If the signal strength in your area is good, leave this set to ‘Stereo.  
Programming a preset radio station  
Preset stations are available for both DAB and FM. Up to 16 stations can be stored as presets.  
First select the radio station you wish to assign to a preset. Press STORE 1–8 or STORE 9–16, then press  
the appropriate preset button to store the service.  
Selecting a preset  
To select presets 1 to 8, press and release the corresponding button. To select presets 9 to 16, press and  
hold the corresponding button for two seconds.  
Changing the display mode  
The bottom line of the display can be set to different modes: programme type, transmission frequency,  
dynamic label (scrolling text), data rate (showing service data rate and stereo/mono mode) and signal-  
quality (a bar graph). Press DISPLAY MODE on the front panel or MODE on the remote control to cycle  
through these display options.  
Note that the display modes for DAB and FM are set independently.  
Programme type  
The ‘programme type’ label is a short description of the type of programme being transmitted, and (if  
selected) is displayed below the station name.  
Transmission frequency (FM only)  
The transmission frequency setting shows the station name (if available), together with the frequency  
the station is being transmitted on. This can be useful, in areas where the same station is transmitted on  
different frequencies, in ensuring that the correct transmission of the station is selected.  
Dynamic label (DAB) / RDS (FM)  
This is a 128 character block of scrolling text used by most broadcasters to display programme  
information (such as song titles, useful phone numbers and website addresses).  
Data rate (DAB only)  
The data rate setting allows the data rate of the station, together with the MPEG mode, to be seen. The  
data rate is given in kbits/second, with a higher data rate indicating better audio quality. The maximum  
data rate supported by the DT91 is 224kbps, but most radio stations are broadcast at 128kbps, or less.  
The MPEG mode of the station indicates whether the station is broadcast in stereo or mono.  
Signal quality  
The signal quality meter is a simple bargraph that gives a quick visual guide to reception quality. For  
DAB transmissions, it is an inverse measure of the Viterbi error rate, with zero errors at full scale (all  
segments are lit) and 500 errors/second (with all segments off). For FM transmissions, the bar graph  
shows a simple analogue measurement of signal strength.  
Secondary services (DAB only)  
Primary services can have one or more secondary services attached to them. These tend to be  
temporary; sporting events such as football matches, for example, may be broadcast as secondary  
services. Services that have secondary services attached to them are indicated by a ‘>’ symbol. Turning  
the rotary selector clockwise will then reveal these services. The secondary services themselves are  
indicated by a ‘<’ symbol.  
You need to select a main service in order to see if there are secondary services attached. Note that only  
primary services can be attached to a preset.  
DT91  
E-7  
 
The CR-389D remote control  
FM/DAB  
MENU  
Use this button to switch between FM and  
DAB mode. The LED above the FM/DAB  
button is lit briefly when the button is  
pressed to show which mode is selected.  
This button has the same function as the  
MENU button on the front panel of the tuner.  
DISP  
TUNER  
This button toggles the tuner’s display  
between on and off.  
FM DAB  
Preset memory buttons  
FM  
DAB  
These buttons allow access to individual preset  
stations. To select a preset press the corresponding  
button. For presets 9 to 16, press and hold the  
corresponding preset button for two seconds.  
MENU  
2-10  
DISP  
3-11  
7-15  
TUNE buttons  
These buttons enable you to scroll through the  
available stations.  
1-9  
5-13  
4-12  
8-16  
6-14  
For more information on tuning radio stations  
in, see the sections ‘Searching for radio  
stations: DAB’ and ‘Searching for radio  
stations: FM’ on page 6 and 7.  
MODE  
MODE  
BAND  
This button has the same function as  
DISPLAY MODE on the front panel.  
SP1  
SP2  
BAND  
ENTER  
DISP  
This button has the same function as  
SELECT on the front panel.  
SEL  
Amplifier controls  
These buttons offer basic control over  
Arcam amplifiers.  
PHONO  
AUX  
DVD  
CD  
TUNER  
TAPE  
AV  
VCR  
AMPLIFIER  
CD player controls  
RPT  
These buttons offer basic control over Arcam CD  
players.  
PROG  
DISP  
CD  
CR-389  
Note: Remember to install the two AAA batteries  
supplied before trying to use your remote control.  
Do not place anything in front of the tuner (where the  
IR receiver is located), or the remote control may not  
work.  
DT91  
E-8  
 
Technical specifications  
Digital audio output  
Format  
SPDIF co-axial to gold-plated phono sockets  
SPDIF optical to TOSLINK  
Sample rate  
48kHz (DAB mode)  
32kHz (FM mode)  
Output impedance (co-axial)  
Analogue audio output  
Connectors  
75Ω unbalanced  
Two pairs of stereo outputs to gold-plated phono sockets  
Output level  
2.4Vrms at 0dB FS (DAB mode)  
0.9Vrms at full modulation (FM mode)  
Output impedance  
<100Ω  
Minimum load  
600Ω  
Frequency response (±0.5dB)  
RF performance (DAB mode)  
Tuning range  
20Hz–20kHz  
174–240MHz (Band III)  
1452–1492MHz (L band)  
Sensitivity (VHF measurement to EN50248)  
Audio data rate (maximum)  
RF performance (FM mode)  
Tuning range  
better than –91dBm, typically –97dBm  
224kbits/s at MPEG protection level 3  
87–108MHz  
Sensitivity (IHF)  
3µV typical  
Signal to noise ratio  
THD+n  
65dB at full modulation, 1kHz  
0.1% at full modulation, 1kHz  
Aerial  
Connector  
F type  
50Ω  
Impedance  
Remote control interface  
Remote bus input  
Serial port  
36kHz modulated RC5 on 3.5mm mono jack socket  
RS232 to 9-way male D connector, DTE pin out. Remote  
control codes given in table on following page.  
General  
Supply voltage  
Power consumption  
Size  
115 or 230Vac, set by rear panel voltage selector switch  
<20W  
W435 x D320 x H83mm  
Weight  
3.6kg (net), 6kg (packed)  
Supplied accessories  
CR-389D remote control  
two x AAA batteries  
Mains lead  
Indoor ribbon aerial  
E&OE  
Note: All specification values are typical unless otherwise stated.  
Continual improvement policy  
Arcam has a policy of continual improvement for its products. This means that designs and specifications  
are subject to change without notice.  
DT91  
E-9  
 
Remote-control codes  
The following table gives the IR commands accepted by the DT91. The system code for the DT91 is 17  
(in common with other Arcam tuners).  
Power commands  
Command  
Power on  
Power off  
Decimal Code  
123  
124  
Tuner control commands  
Command  
Decimal Code  
Select DAB  
Select FM  
MENU  
126  
127  
61 or 125  
18 or 71  
1 or 91  
2 or 92  
3 or 93  
4 or 94  
5 or 95  
6 or 96  
7 or 97  
8 or 98  
37 or 121  
33 or 78  
32 or 77  
50 or 87  
DISP  
1–9  
2–10  
3–11  
4–12  
5–13  
6–14  
7–15  
8–16  
MODE  
<
>
BAND  
Guarantee  
Worldwide Guarantee  
This entitles you to have the unit repaired free of charge, during the first two years after purchase, at  
any authorised Arcam distributor provided that it was originally purchased from an authorised Arcam  
dealer or distributor. The manufacturer can take no responsibility for defects arising from accident,  
misuse, abuse, wear and tear, neglect or through unauthorised adjustment and/or repair, neither can  
they accept responsibility for damage or loss occurring during transit to or from the person claiming  
under the guarantee.  
The warranty covers:  
Parts and labour costs for two years from the purchase date. After two years you must pay for both parts  
and labour costs. The warranty does not cover transportation costs at any time.  
Claims under guarantee  
This equipment should be packed in the original packing and returned to the dealer from whom it was  
purchased, or failing this, directly to the Arcam distributor in the country of residence.  
It should be sent carriage prepaid by a reputable carrier – not by post. No responsibility can be accepted  
for the unit whilst in transit to the dealer or distributor and customers are therefore advised to insure the  
unit against loss or damage whilst in transit.  
For further details contact Arcam at:  
Arcam Customer Support Department,  
Pembroke Avenue, Waterbeach, CAMBRIDGE, CB5 9QR, England.  
Problems?  
If your Arcam dealer is unable to answer any query regarding this or any other Arcam product please  
contact Arcam Customer Support at the above address and we will do our best to help you.  
On line registration  
You can register your Arcam product on line at: www.arcam.co.uk  
DT91  
E-10  
 
Appendix: Serial programming interface  
Introduction  
This section of the document describes the remote control protocol for controlling the DT91 via the  
RS232 interface.  
Conventions  
n
n
The remote controller is referred to as the ‘RC.  
All values in this section are hexadecimal values, unless otherwise specified.  
Data transfer format  
n
n
Transfer rate: 19,200bps.  
1 start bit, 8 data bits, 1 stop bit, no parity, no flow control.  
Command and response formats  
Communication between the RC and the DT91 takes the form of sequences of bytes, with all commands  
and responses having the same basic format. Communication between the two is full duplex. The DT91  
shall always respond to a received command.  
Each transmission by the RC shall be at least five bytes long in the following format:  
<STR> <CC> <DL> <Data> <ETR>  
n
n
n
n
n
STR (Start transmission): 0x21  
CC (Command code): the code for the command  
DL (Data length): the number of data items following this item, excluding the ETR  
Data: the parameters for the command  
ETR (End transmission): 0xD  
Each response by the DT91 shall be at least six bytes long in the following format:  
<STR> <RC> <AC> <DL> <Data> <ETR>  
n
n
n
n
n
n
STR (Start transmission): 0x21  
RC (Reply code): = command code  
AC (Answer code): answer code (see below)  
DL (Data length): the number of data items following this item, excluding the ETR  
Data: the information associated with this response  
ETR (End transmission): 0xD  
Note that the DT91 shall transmit messages whenever its status changes.  
State changes as a result of other inputs  
It is possible that the state of the DT91 may be changed as a result of user input via the front panel  
buttons or via the IR remote control. Changes resulting from these inputs shall be relayed to the RC  
(using the appropriate message type) as they occur.  
For example, if the user changed the front panel display brightness using the DISP button on the remote  
control, a display message (defined below) would be sent to the RC. A similar action would be taken for  
all other state changes.  
Answer codes  
The following answer codes are defined:  
n
n
Command OK  
Command Failed  
0x1: The command has been accepted and processed completely.  
0x0: The command has failed for some reason.  
DT91  
E-11  
 
Command Specifications / Spécifications des commandes /  
Befehlsspezifikationen / Opdrachtspecificaties  
Power / Alimentation / Betrieb / Stroom  
COMMAND:  
 
Change the stand-by state of the DT91.  
Byte:  
CC  
Description:  
Permet de modifier l'état de veille du DT91.  
Ändern des Stand-by-Zustands des DT91.  
De Stand-by status van de DT91 wijzigen.  
0x00 (Command code)  
0x01 (Data length)  
DL  
 
D1  
0x00 – Enter stand-by state  
0x01 – Power-on  
0xF2 – Toggle power state  
0xF3 – Request power state  
Example / Exemple / Beispiel / Voorbeeld  
 
Command/response sequence to bring the DT91 out of standby:  
RESPONSE:  
Séquence de commande/réponse pour désactiver le mode veille du  
DT91 :  
Byte:  
RC  
Description:  
Befehls-/Rückmeldesequenz zur Aktivierung des im Stand-by-Modus  
0x00 (Reply Code)  
Answer code  
befindlichen DT91:  
AC  
 
Opdracht- en responsreeks om de DT91 uit stand-by te halen:  
DL  
0x01 (Data length)  
D1  
Response:  
0x00 – The DT91 is in stand-by state  
0x01 – The DT91 is powered on  
COMMAND: 0x21 0x00 0x01 0x01 0x0D  
RESPONSE: 0x21 0x00 0x01 0x01 0x01 0x0D  
Source selection / Sélection de la source / Quellenauswahl / Bronkeuze  
 
Switch between DAB and FM.  
COMMAND:  
Bascule entre les modes RAN et FM.  
Wechsel zwischen DAB und FM  
Schakel om naar DAB en FM.  
Byte:  
CC  
Description:  
0x01 (Command code)  
0x01 (Data length)  
 
DL  
D1  
0x01 – FM  
0x02 – DAB  
0xF3 – Request current source  
Example / Exemple / Beispiel / Voorbeeld  
 
Command/response sequence to switch to FM:  
RESPONSE:  
Séquence de commande/réponse pour basculer en mode FM :  
Byte:  
RC  
Description:  
Befehls-/Rückmeldesequenz zum Umschalten auf FM:  
0x01 (Reply Code)  
Answer code  
 
Opdracht- en responsreeks om naar FM over te schakelen:  
AC  
DL  
0x01 (Data length)  
COMMAND: 0x21 0x01 0x01 0x01 0x0D  
D1  
Response:  
Source values as given above.  
RESPONSE: 0x21 0x01 0x01 0x01 0x01 0x0D  
Display brightness / Luminosité de l'affichage /  
Helligkeit des Displays / Helderheid van de display  
COMMAND:  
Byte:  
CC  
Description:  
 
Set the display brightness.  
0x0A (Command code)  
0x01 (Data length)  
Définit la luminosité de l’affichage.  
DL  
Einstellen der Helligkeit des Displays.  
D1  
0xF0 – Increase the display brightness  
0xF1 – Decrease the display brightness  
0xF3 – Request current display brightness  
 
Instellen van de display-helderheid.  
Example / Exemple / Beispiel / Voorbeeld  
RESPONSE:  
 
Command/response sequence to dim the display one level, where the  
Byte:  
RC  
Description:  
result is that the display brightness is at level 1:  
0x0A (Reply Code)  
Answer code  
Séquence de commande/réponse pour atténuer la luminosité de  
AC  
l’affichage d’un cran, à savoir la régler au niveau 1 :  
DL  
0x01 (Data length)  
Befehls-/Rückmeldesequenz zum Dimmen des Displays um eine Stufe.  
D1  
Response:  
Die Helligkeit des Displays ist anschließend auf Stufe 1:  
The new brightness level,  
0x00 (off) - 0x02 (full brightness).  
 
Opdracht- en responsreeks om het display één niveau te dimmen met als  
resultaat dat de display-helderheid zich nu op niveau 1 weergeeft:  
COMMAND: 0x21 0x0A 0x01 0xF1 0x0D  
RESPONSE: 0x21 0x0A 0x01 0x01 0x01 0x0D  
DT91  
E-12  
 
Display information type / Affichage du type d’informations /  
Display-Informationstypus / Display informatie type  
 
Set the display information type.  
COMMAND:  
Définit l’affichage du type d’informations.  
Byte:  
CC  
Description:  
Einstellen des Display-Informationstypus.  
0x0C (Command code)  
0x01 (Data length)  
 
Instellen van het display informatie type.  
DL  
D1  
If the current source is FM:  
0x00 – Set the display to show frequency  
0x01 – Set the display to show sig. strength  
0x02 – Set the display to show RDS info.  
0x03 – Set the display to show prog. type  
Example / Exemple / Beispiel / Voorbeeld  
 
Command/response sequence to set the display text to show the  
programme type:  
If the current source is DAB:  
Séquence de commande/réponse permettent de régler l'affichage du  
0x00 – Set the display to show data rate  
0x01 – Set the display to show sig. strength  
0x02 – Set the display to show DLS info.  
0x03 – Set the display to show prog. type  
texte pour afficher le type de programme :  
Befehls-/Rückmeldesequenz zum Einstellen des Display-Texts für die  
Anzeige des Programmtypus:  
 
Opdracht- en responsreeks zodat de display tekst het programmatype  
RESPONSE:  
weergeeft:  
Byte:  
RC  
Description:  
0x0C (Reply Code)  
Answer code  
COMMAND: 0x21 0x0C 0x01 0x03 0x0D  
AC  
RESPONSE: 0x21 0x0C 0x01 0x01 0x03 0x0D  
DL  
0x01 (Data length)  
D1  
Response:  
The new display setting.  
Preset selection / Préréglage de station /  
Preset-Auswahl / Selecteren van een voorinstelling  
 
Select a preset radio station.  
COMMAND:  
Mémorise une station radio préréglée.  
Byte:  
CC  
Description:  
Auswählen eines voreingestellten Radiosenders.  
0x13 (Command code)  
 
Selecteer een vooringestelde zender.  
DL  
0x01 (Data length)  
D1  
0x1 - 0x10 – The selected preset.  
Example / Exemple / Beispiel / Voorbeeld  
RESPONSE:  
 
Command/response sequence to select preset 12:  
Byte:  
RC  
Description:  
Séquence de commande/réponse pour sélectionner la station  
0x13 (Reply Code)  
Answer code  
préréglée 12 :  
AC  
Befehls-/Rückmeldesequenz zur Auswahl der Voreinstellung 12:  
DL  
0x1 (Data length)  
 
Opdracht- en responsreeks om voorinstelling 12 te selecteren:  
Dn  
Response:  
The selected preset.  
COMMAND: 0x21 0x13 0x01 0x0C 0x0D  
RESPONSE: 0x21 0x13 0x01 0x0C 0x0D  
Station selection / Sélection d’une station RAN /  
DAB-Senderauswahl / Selecteren van een DAB zender  
 
Increment/decrement the DAB station selection.  
COMMAND:  
Incrémente/décrémente la présélection de station RAN.  
Byte:  
CC  
Description:  
Erhöhen/Verringern der DAB-Senderauswahl.  
0xDE (Command code)  
0x01 (Data length)  
 
Seleceteren van volgende/vorige DAB zender.  
DL  
D1  
DAB only:  
0xF0 – Select the next DAB station  
0xF1 – Select the previous DAB station  
Example / Exemple / Beispiel / Voorbeeld  
 
Command/response sequence to increment the DAB station selection,  
DAB or FM:  
0xF3 – Request the current station name  
where the new station is called “DAB STATION 2”:  
Séquence de commande/réponse pour incrémenter la sélection de station  
RESPONSE:  
RAN, la nouvelle station s’appelant alors « DAB STATION 2 » :  
Byte:  
RC  
Description:  
Befehls-/Rückmeldesequenz zur Erhöhung der DAB-Senderauswahl. Der  
0xDE (Reply Code)  
Answer code  
neue Sender heißt „DAB STATION 2”:  
AC  
 
Opdracht- en responsreeks voor het selecteren van de volgende DAB  
zender, waarbij de nieuwe zender ‘DAB STATION 2’ wordt benaamd:  
DL  
(Data length)  
Dn  
Response:  
The service label of the radio station, in  
ASCII characters  
COMMAND: 0x21 0xDE 0x01 0xF0 0x0D  
RESPONSE: 0x21 0xDE 0x01 0x0D 0x44 0x41 0x42 0x20 0x53 0x54  
0x41 0x54 0x49 0x4F 0x4E 0x20 0x32 0x0D  
DT91  
E-13  
Radio station information / Informations sur la station radio /  
Radiosenderinformationen / Zenderinformatie  
COMMAND:  
 
Request information on the current radio station.  
Byte:  
CC  
Description:  
Demande des informations sur la station radio actuelle.  
0xDF (Command code)  
Abfragen von Informationen zum aktuellen Radiosender.  
DL  
0x02 (Data length)  
 
Vraag naar informatie over de huidige zender.  
D1  
0xF3 – Request station information  
D2  
0x00 – Request the station frequency (FM  
only)  
Example / Exemple / Beispiel / Voorbeeld  
0x01 – Request the station signal strength  
0x02 – Request the station MPEG mode  
0x04 – Request the station data rate  
 
Command/response sequence to request the station frequency, where  
the source is FM and the frequency is 105.2MHz:  
Séquence de commande/réponse pour demander la fréquence de la  
RESPONSE:  
station, la source étant FM et la fréquence 105,2 MHz :  
Byte:  
RC  
Description:  
Befehls-/Rückmeldesequenz zum Abfragen der Senderfrequenz. Die  
0xDF (Reply Code)  
Answer code  
Quelle ist FM (analog) und die Frequenz 105,2 MHz:  
 
AC  
Opdracht- en responsreeks voor het vragen naar de zendfrequentie, met  
als bron FM en de frequentie 105.2Mhz:  
DL  
0x03 (Data length)  
D1  
0x00 – Message contains station freq.  
0x01 – Message contains signal strength  
0x02 – Message contains MPEG mode  
0x03 – Message contains data rate  
COMMAND: 0x21 0xDF 0x02 0xF3 0x00 0x0D  
RESPONSE: 0x21 0xDF 0x01 0x03 0x00 0x69 0x14 0x0D  
D2  
Response to the FM frequency request:  
MHz of current frequency  
Example / Exemple / Beispiel / Voorbeeld  
Response to the DAB MPEG mode request:  
0x00 – Stereo  
0x01 – Joint stereo  
 
Command/response sequence to request the signal strength, where the  
current signal strength is 10:  
0x02 – Dual mono  
0x03 – Mono  
Séquence de commande/réponse pour demander la puissance du signal,  
la puissance du signal actuelle étant de 10 :  
Response to the DAB data rate request:  
0x00 - 0xE0 (0 - 224kb/s) – data rate  
Befehls-/Rückmeldesequenz zum Abfragen der Signalstärke. Die aktuelle  
Signalstärke ist 10:  
Response to the signal strength request:  
0x00 - 0x10 – signal strength  
 
Opdracht- en responsreeks om de signaalsterkte na te vragen, waarbij de  
signaalsterkte 10 is:  
D3  
Response to the FM frequency request:  
kHz (*10) of current frequency  
COMMAND: 0x21 0xDF 0x02 0xF3 0x01 0x0D  
Response to the DAB MPEG mode request:  
0x00  
RESPONSE: 0x21 0xDF 0x01 0x02 0x0A 0x00 0x0D  
Response to the DAB data rate request:  
0x00  
Response to the signal strength request:  
0x00  
FM frequency selection / Sélection de la fréquence FM /  
FM-Frequenzauswahl / Selecteren van FM-frequentie  
COMMAND:  
 
Increment/decrement the FM frequency selection.  
Byte:  
CC  
Description:  
0xE4 (Command code)  
0x01 (Data length)  
Incrémente/décrémente la sélection de la fréquence FM.  
DL  
Erhöhen/Verringern der FM-Frequenzauswahl  
 
D1  
0xF0 – Increment the tuned frequency  
0xF1 – Decrement the tuned frequency  
0xF3 – Request the current tuned frequency  
Selecteren van hogere/lagere FM-frequentie.  
Example / Exemple / Beispiel / Voorbeeld  
RESPONSE:  
 
Command/response sequence to decrement the station frequency, where  
Byte:  
RC  
Description:  
the new frequency is 97.9MHz:  
0xE4 (Reply Code)  
Séquence de commande/réponse pour décrémenter la fréquence de la  
AC  
Answer code  
station, la nouvelle fréquence étant 97,9 MHz :  
DL  
0x02 (Data length)  
Befehls-/Rückmeldesequenz zum Verringern der Senderfrequenz. Die  
neue Frequenz ist 97,9 MHz:  
D1  
MHz of current frequency  
kHz (*10) of current frequency  
 
Opdracht- en responsreeks om een lagere zenderfrequentie te selecteren,  
D2  
met als nieuwe frequentie 97.9Mhz:  
COMMAND: 0x21 0xE4 0x01 0xF1 0x00 0x0D  
RESPONSE: 0x21 0xE4 0x01 0x02 0x61 0x5A 0x0D  
DT91  
E-14  
Radio programme type / Type de programme radio /  
Erhöhen/Verringern der FM-Frequenzauswahl / Radioprogramma type  
 
Request information on the current station programme type.  
COMMAND:  
Demande des informations sur le type de programme actuellement émis.  
Abfragen von Informationen zum aktuellen Senderprogrammtypus.  
Vragen naar informatie over het programmatype van de huidige zender.  
Byte:  
CC  
Description:  
0xE6 (Command code)  
0x01 (Data length)  
 
DL  
D1  
0xF3 – Request programme type  
Examples / Exemple / Beispiel / Voorbeeld  
RESPONSE:  
 
Command/response sequence to request the programme type, where the  
Byte:  
RC  
Description:  
programme type is “POP MUSIC”:  
0xE6 (Reply Code)  
Answer code  
Séquence de commande/réponse pour demander le type de programme,  
AC  
le type de programme étant « POP MUSIC » :  
DL  
(Data length)  
Befehls-/Rückmeldesequenz zum Abfragen des Programmtypus; der  
Programmtypus ist „POP MUSIC”:  
Dn  
Response:  
The programme type of the selected  
station, in ASCII characters  
 
Opdracht- en responsreeks om te vragen naar het programmatype,  
waarbij het programmatype “POP MUSIC” is:  
COMMAND: 0x21 0xE6 0x01 0xF3 0x0D  
RESPONSE: 0x21 0xE6 0x01 0x09 0x50 0x4F 0x50 0x20 0x4D 0x55  
0x53 0x49 0x43 0x0D  
Request RDS/DLS information / Demande d’informations RDS/DLS / Abfragen  
von RDS/DLS-Informationen / Vragen naar RDS/DLS informatie  
COMMAND:  
 
Request RDS/DLS (FM/DAB) information from the current radio station.  
Byte:  
CC  
Description:  
Demande des informations RDS/DLS (FM/RAN) sur la station radio  
0xE7 (Command code)  
0x01 (Data length)  
actuelle.  
DL  
Abfragen von RDS/DLS-Informationen (FM/DAB) vom aktuellen  
Radiosender.  
D1  
0xF3 – Request RDS/DLS information  
 
Vraag naar RDS/DLS (FM/DAB) informatie van de huidige zender.  
RESPONSE:  
Byte:  
RC  
Description:  
Examples / Exemple / Beispiel / Voorbeeld  
0xE7 (Reply Code)  
Answer code  
 
Command/response sequence to request the RDS/DLS information,  
AC  
where the information is “Playing your favourite music”:  
DL  
(Data length)  
Séquence de commande/réponse pour demander les informations RDS/  
Dn  
Response:  
DLS, les informations étant « Playing your favourite music » (Ecouter votre  
musique favorite) :  
The RDS/DLS information of the selected  
station, in ASCII characters. Up to 128  
characters may be returned.  
Befehls-/Rückmeldesequenz zum Abfragen der RDS/DLS-Informationen;  
es wird „Playing your favourite music” angezeigt:  
 
Opdracht- en responsreeks om naar de RDS/DLS informatie te vragen,  
met als informatie “Playing your favourite music”:  
COMMAND: 0x21 0xE7 0x01 0xF3 0x0D  
RESPONSE: 0x21 0xE7 0x01 0x1C 0x50 0x6c 0x61 0x79 0x69 0x6E  
0x67 0x20 0x79 0x6F 0x75 0x72 0x20 0x66 0x61 0x76 0x6F 0x75  
0x72 0x69 0x74 0x65 0x20 0x6D 0x75 0x73 0x69 0x63 0x0D  
Protocol version / Version du protocole / Protokollversion / Protocol versie  
COMMAND:  
 
Request the RS232 protocol version of the DT91.  
Byte:  
CC  
Description:  
Demande la version du protocole RS232 du DT91.  
Abfragen der RS232-Protokollversion des DT91.  
Vraag naar de RS232 protocol versie van de DT91.  
0xED (Command code)  
0x01 (Data length)  
DL  
 
D1  
0xF3 – Request protocol version  
RESPONSE:  
Examples / Exemple / Beispiel / Voorbeeld  
Byte:  
RC  
Description:  
 
Command/response sequence to request the protocol version:  
0xED (Reply Code)  
Answer code  
Séquence de commande/réponse pour demander la version du protocole :  
AC  
Befehls-/Rückmeldesequenz zum Abfragen der Protokollversion:  
DL  
0x02 (Data length)  
0x01 (Major revision)  
(Minor revision)  
 
Opdracht- en responsreeks om naar de protocol versie te vragen:  
D1  
D2  
COMMAND: 0x21 0xED 0x01 0xF3 0x0D  
RESPONSE: 0x21 0xED 0x01 0x02 0x01 0x00 0x0D  
DT91  
E-15  

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