Lost audio B-dab-760 User manual

Lost Audio GmbH

Sumatronic AG

B-DAB-760

DAB+ / FM Tuner Modul

Conversion for

Revox B760

B-DAB-760 Tuner Modul DAB+/FM

Table of contents

1DAB+/FM tuner 3

2General information 3

2.1 The rotary wheel 3

2.2 Alphanumeric display 4

2.3 Station memory system - pearlchains 4

2.4 Last listened station 5

2.5 Stereo display and signal quality/strength 5

3Connecting the antenna 5

4Save, listen and customize DAB+ stations 6

4.1 DAB+ Sender automatisch speichern „SCAN“ 6

4.2 Listen to and changing DAB+ stations 7

4.3 Changing the DAB+ stations order 7

4.4 Delete DAB+ stations individually 9

4.5 Delete all DAB+ stations 9

4.6 DAB+ dual channel 10

4.7 Updating the DAB+ station name 10

4.8 Displaying data on the DAB+ station being played 11

4.9 Displaying DAB+ radio text 11

5Settings menu „MENU DAB“ 12

5.1 Switching radio text on and off „RADIOTXT“ 12

5.2 Volume DAB+ „VOLUME“ 12

5.3 Equalizer DAB+ „EQUALIZE“ 13

5.4 Cut + „CUT PLUS“ 13

5.5 Headroom „HEADROOM“ 13

5.6 DRC „DRC“ 14

5.7 Antenna power supply „ANT PWR“ 14

5.8 Meter factor „METER F“ 14

5.9 Test tone „TESTTONE“ 15

5.10 FactoryReset „FA RESET“ 15

B-DAB-760 Tuner Modul DAB+/FM

5.11 Exiting the settings Menu 15

6Save, listen and customize FM stations 16

6.1 Saving FM stations automatically „SCAN“ 16

6.2 Adding FM stations manually 16

6.3 Listen to and change FM stations 17

6.4 Changing the FM stations order 17

6.5 Delete FM stations individually 19

6.6 FM manual operation 19

6.7 Delete all FM stations 20

6.8 Switching FM reception to mono 20

6.9 Display FM RDS radio text 21

7Settings menu „MENU FM“ 21

7.1 RDS „RDS“ 22

7.2 Volume FM „VOLUME“ 22

7.3 Equalizer FM „EQUALIZE“ 22

7.4 S/N ratio threshold for stereo „STE THD“ 23

7.5 Channel search –threshold detection „RSSI THD“ 23

7.6 Channel search –S/N ratio „NSE THD“ 23

7.7 Channel search –store threshold „MIN LVL“ 23

7.8 Exiting the settings menu 23

8Troubleshooting 24

8.1 Display shows „+5V FAIL“ 24

8.2 Display shows „no RS232“ 24

8.3 No reception with active antenna 24

9Technical data 25

10 Warranty 25

11 Support & questions 25

12 General 25

B-DAB-760 Tuner Modul DAB+/FM

1 DAB+/FM tuner

DAB and DAB+ are the new generation of radio technologies in which the radio signal

is transmitted completely digitally. Even with difficult reception, you can listen to your

favorite stations without any noise.

The B-DAB-760 has been designed to be as resistant as possible to any interference

that occurs in everyday life thanks to sophisticated filter technologies. This means you

can listen to the radio without interference even when reception is difficult.

The tuner receives DAB and DAB+ in frequency band III from 174 - 240 MHz and FM

in frequency band II from 87.5 - 108 MHz. Programming is fully automatic, the stations

are automatically recognized, stored and assigned the correct names for DAB. No

names are assigned for FM; the RDS station name or RDS radio text can be displayed.

Up to 250 stations can be stored for DAB/DAB+ and 250 stations for FM.

The tuner analog audio output signal is delivered as usual via the two pairs of cinch

sockets to your usual hi-fi system. The volume of one output is fixed as usual, while the

other can be adjusted on the front of the B760. No digital SP/DIF signal is available.

Enjoy the new way of listening to the radio.

2 General information

2.1 The rotary wheel

The centrally positioned rotary wheel is one of the distinctive features of this tuner. It

therefore goes without saying that it is fully integrated into the operation, just like the

original. However, this rotary wheel is not a pure rotary signal generator, as is usually

the case with modern devices, but a meticulously designed analog frequency selector

for the megahertz and kilohertz range. It is therefore only 99% possible to use this as a

pure rotary encoder. This means that small jumps or repetitions can always occur in

the megahertz alternation. You will sometimes notice that jumps or repetitions occur

during operation. However, you will quickly get used to it and appreciate its use.

B-DAB-760 Tuner Modul DAB+/FM

2.2 Alphanumeric display

The new display can show letters, numbers and some special characters. However, to

make it look as stylish as the original display, it is limited to 8 characters. This means

that certain information is displayed in abbreviated form. Here, original design takes

precedence over function. Thank you for your understanding.

2.3 Station memory system - pearlchains

Basically, all DAB+ and FM stations are stored in the system like a chain of pearls.

One chain for DAB+ and one chain for FM. This means that there can never be a gap

in this chain. The 15 or 30 direct selection buttons automatically point to the first 15 or

30 stations in the chain. This means, for example, that button 3 automatically points to

the third station in these chains for DAB+ and FM. You cannot assign these direct

selection buttons specifically. If you want to assign the direct selection buttons

differently, the order of the stations in the station memory chain must be changed.

Gaps are automatically created for inserting stations or removed when a station is

moved.

You can use the direct selection buttons to select stations 1 to 30, then use the rotary

wheel to continue selecting through the station chain. However, the rotary wheel can

also be used for stations 1 to 30.

B-DAB-760 Tuner Modul DAB+/FM

2.4 Last listened station

The last station listened to on DAB+ and FM is always saved so that the same station

can be heard again when the device is switched on. This storage is carried out

approximately one minute after a station has been listened to continuously.

2.5 Stereo display and signal quality/strength

The DAB+ and FM tuner indicates for each station whether it is transmitted in mono or

stereo. DAB+ also uses mono transmission, but this is not due to a lack of reception

strength but to save data. With FM, mono reception is usually because the signal

strength is too weak. The display for mono and stereo is generally very sluggish and is

only updated every few seconds. The signal quality with the display in the pointer

instrument is also only updated every few seconds.

Please note that with DAB+ the signal quality is displayed and not the signal strength.

Even a very strong DAB+ signal can be poor due to reflection. Therefore for DAB+ the

quality is displayed.

With FM, the quality cannot be measured, so the signal strength is displayed for FM.

3 Connecting the antenna

Find out whether you are using an active or passive antenna for DAB+/FM reception. If

you are using an active antenna that must be supplied with 5V, it can be supplied with a

maximum of approx. 30mA by the B-DAB-760 module. This supply voltage can be

switched on or off via Settings in the DAB+ menu. This is only required for an active

antenna and may only be activated in this case. To activate the supply voltage, please

first read chapter 5 and then chapter 5.7intheDAB+ section. The antenna power supply

can only be switched on in the DAB+menu, but then applies to DAB+ and FM together.

The 5V power supply for the antenna MUST be switched on before the station search

(DAB+ and FM), otherwise no stations will be found.

To connect the antenna, use the usual antenna socket on the B760 at the back left of

the device, which is designed for 50 and 75 Ohm antennas. Always place your antenna

on a metallic surface, for example the housing of the B760 or a piece of sheet metal

that you have to hand. A metallic surface increases the reception strength. The

antenna only needs to be placed close on it; it is not necessary to have electrical

contact with the metal surface.

B-DAB-760 Tuner Modul DAB+/FM

If you receive DAB+Cable via your cable network, you can use the sumaDAB

DAB+Cable adapter to convert this signal into normal DAB+ signals and receive them

with the DAB module. In this case, an antenna is not required. Cable reception is

generally simple and problem-free.

UPC (Switzerland) and its partners currently offer DAB+Cable with around 90 radio

stations on their cable networks.

4 Save, listen and customize DAB+ stations

When the DAB+/FM tuner is delivered, no stations are stored on it. To store the DAB+

stations, first switch on the device with the power switch on the far left by tilting it

upwards. Now make sure that the device is in DAB+ mode. To do this, the second

toggle lever from the left, which is originally labeled "OPERATING MODE", must be

tilted downwards. Up would be FM, down is DAB+.

When the device is switched on, "DAB 760" is shown on the display for around 2

seconds, after which the last station listened to is played. If no stations are

programmed, the display goes out completely.

4.1 DAB+ Sender automatisch speichern „SCAN“

You can now perform the automatic station search. The tuner does not have a

manual tuning function, as this is not necessary with DAB+. DAB+ works differently to

FM, where a single radio station is transmitted on each frequency. With DAB+, several

radio stations are bundled into one package (known as an ensemble) and are

transmitted on a single frequency. Therefore, direct tuning and thus the input of a

station is not possible. As each radio station has a predefined name, it is not necessary

to name radio stations by yourself.

To do this, press the "STORE IN MEMORY" button just below the display for about

5 seconds until the automatic station search starts. This is signaled by "AutoMEM"

appearing on the display. Then immediately release the button. The function now

searches through all 40 channels in band III and finds all available radio stations. It will

also find stations that cannot be played because the reception is too weak. These can

be deleted later. Manual retuning is therefore not necessary.

The channels are automatically counted from 0 to 40. The display is updated at

fixed intervals. This can therefore mean that not every single channel is displayed.

However, all channels are always scanned, even if they are not displayed.

B-DAB-760 Tuner Modul DAB+/FM

Finally, all radio stations found are saved. A check is also made to ensure that this

is not just a data service. The latter are not radio stations, therefore do not transmit

music and are therefore automatically deleted during the saving process. It is therefore

possible that more stations are displayed during the saving process than are saved at

the end.

4.2 Listen to and changing DAB+ stations

As known from the B760, the first 15 stations can be selected directly using the 15

buttons on the right-hand side. Stations 16 to 30 can now also be selected directly by

first pressing the "ADD" button below the display. The yellow "MUTING" lamp on the

right-hand side now lights up. As long as this yellow lamp is lit, you are in the 16 to 30

mode of the direct selection buttons. To switch back to the range 1 to 15, press the

"ADD" button again and the yellow "MUTING" lamp on the right will go out again. This

function is only available if you have stored more than 15 stations.

You can use the central wheel to search for stations. Simply start turning it and search

for the desired station. Turn it to navigate forwards or backwards through the chain of

stored stations, depending on the direction of rotation. While turning, only the station to

be searched for is displayed, but not selected. You can recognize this by the fact that a

dot appears on the far right side of the display. As soon as you stop turning the wheel

for approx. 1.5 seconds, the selected station is set, the dot on the far right side

disappears and the station sounds after a few seconds.

The direct selection buttons do not need to be assigned separately. They automatically

point to the respective station in the internal chain of stored stations. Button 2, for

example, automatically points to the station that was saved in second place in the

station chain during the search.

You can select all stored stations with these two variants.

4.3 Changing the DAB+ stations order

The stations are always saved alphabetically during the automatic saving process.

(Exceptions may occur with stations whose short name is "32", for example. These are

sorted by "32", but displayed as "Radio 32"). You can change this sorting at will. To do

this, use the empty list on the last page. Make a note of your personal list and the order

of the stations you would like to have. This is very helpful as no station numbers can be

displayed during the sorting process. Start with the channel you want to have in first

place, then the second place, then the third place and so on. In this way, you create

the new order of the station chain in ascending order based on your list.

B-DAB-760 Tuner Modul DAB+/FM

If you want to swap two stations, for example the station from position 30 to position 5,

then first move the station from position 30 to position 5, and only then the station from

position 6 (which was previously position 5) to position 31. The position numbers are

not displayed, you always use the existing station names as a guide.

Proceed as follows:

1. Briefly press the "STORE IN MEMORY" button below the display. The display

now shows "MENU DAB"

2. Turn the wheel clockwise to select the first option "STA SORT"

3. To start the sorting process, press "MANUAL TUNING". A single dot appears

on the left of the display.

4. Now use the wheel (or the direct selection buttons 1-15) to select the station

you want to move. As soon as a station is set, two dots appear from the left in

addition to the station name. The station can be changed several times until

you are sure. (ATTENTION: Direct selection buttons 16-30 do not work in this

mode)

5. Press "ADD" to confirm this station. The display disappears and three dots

appear on the left.

6. Now use the wheel or the direct selection buttons 1-15 to select where the

station should be moved to. The station that is still in the target position is

moved to the rear. Stations are never overwritten or deleted. Gaps are always

automatically closed or created immediately.

7. Press "ADD" again to complete the process. The display goes out and a

single dot appears on the left.

8. Now you can repeat steps 4-7 as often as you like until all the stations have

been moved as you would like them to be.

9. When you have finished moving, press "MANUAL TUNING" to complete the

entire sorting process.

10. Then press "STORE IN MEMORY" to exit the menu, save everything and

return to normal listening mode.

Points and their meaning as an overview

.Wait to select the station to be moved.

.. A station has been set that can be moved.

… The station to be moved has been selected, now the system waits

until the destination is entered.

…. A position has been entered where the station is moved to.

In rare cases, if the station name itself has a dot in its name, the dots may be displayed

incorrectly. Do not let this confuse you. After a few operations, you will have this under

control by heart.

B-DAB-760 Tuner Modul DAB+/FM

4.4 Delete DAB+ stations individually

You can delete each stored station individually. To do this, proceed as follows:

1. Briefly press the "STORE IN MEMORY" button below the display. The display

now shows "MENU DAB"

2. Turn the wheel clockwise to select the first option "STA SORT"

3. Now press "MANUAL TUNING". A single dot appears on the left side of the

display. This single dot on the left side means that it is ready to select the

station to be moved or deleted.

4. Now select the station to be deleted using the rotary wheel or the direct

selection buttons. As soon as a station is set, two dots appear from the left

side in addition to the station name. The station can be changed several times

until you are sure.

5. Now press "CANCEL" to delete this station. "deleted" appears briefly in the

display, after which it disappears again as a single dot.

6. Now you can repeat steps 4-5 as often as you like until all the stations you

wanted to delete have been deleted.

7. When you have finished deleting, press "MANUAL TUNING" to complete the

entire deletion process.

8. Then press "STORE IN MEMORY" to exit the menu, save everything and

return to normal listening mode.

You will have noticed that moving stations and deleting stations are carried out in the

same menu. You can also combine these actions.

4.5 Delete all DAB+ stations

If you want to delete all stored DAB+ stations, press the "STATION BLANK" button for

5 seconds in normal listening mode until "deleted" appears. All stored DAB+ stations

are then deleted, meaning that the direct selection buttons are also empty.

B-DAB-760 Tuner Modul DAB+/FM

4.6 DAB+ dual channel

If a station is broadcast as a dual channel, the left and right channels transmit a

different program, for example different languages. This will be displayed when you

display the technical data, but you will of course also hear this immediately. You can

switch between the left and right channels using the "STATION BLANK" button. Your

amplifier must then be switched to monomode, otherwise only one channel will be

used. Press this button several times to achieve this:

Left channel only

Right channel only

Back to stereo mode

ATTENTION: This option is only available if a channel is broadcast as a dual channel.

4.7 Updating the DAB+ station name

With DAB+, the station names are assigned automatically as they are transmitted by

the station. However, if a station was not received well enough during the save

process, errors may occur in the name. It is also possible that a station has changed its

DAB+ display name. In this case, you can press the "MANUAL TUNING" button below

the display for 5 seconds while listening to this station until the text "Re Store" appears

on the display. Do not be disturbed by the fact that the technical data of the DAB

station is displayed within these 5 seconds. When "Re Store" appears, all the data for

this station has been re-read and saved.

B-DAB-760 Tuner Modul DAB+/FM

4.8 Displaying data on the DAB+ station being played

If you want to display the technical data for the station you are currently listening to,

proceed as follows. In principle, the station should be audible for 30-40 seconds so that

the tuner has received all the technical data and can then also display it. Briefly tap the

"MANUAL TUNING" button below the display. The following station data will now scroll

through the display in sequence.

ATTENTION: The radio text may be changed by the station during this process, which

may interrupt this display and show the radio text.

Bit rate of the station - BR in kilobits per second

Quality of the signal - QTY 0-100

Audio channels: Mono, Stereo, Joint Stereo, Dual Channel

Channel name - e.g. 5D

Transmission frequency - e.g. 180.064 MHz

4.9 Displaying DAB+ radio text

The DAB radio text can be set in the settings so that it is not displayed at all, only once

after each change or constantly. You can have the text displayed again at any time if

such a text has been received. To do this, briefly press the "CANCEL" button below the

display. The radio text is then scrolled through once.

To change this setting, read the following chapters 5 and 5.1.

B-DAB-760 Tuner Modul DAB+/FM

5 Settings menu „MENU DAB“

You already know the first point of the settings, sorting and deleting channels. Now all

the other settings are explained individually. During these settings, the signal quality in

the pointer instrument and the stereo lamp are not updated. Depending on the setting,

the pointer instrument also drops to the value 0, as the display can be adjusted. This is

normal behavior.

To access the Settings menu, press the "STORE IN MEMORY" button. To edit an

individual menu item, navigate to this menu item using the rotary wheel.

With the exception of sorting and deleting in the first menu item, the following button

functions now apply to all settings:

Button 1: Decrease the value or to the left

Button 5: Increase the value or to the right

Button 15: Display the current value of this setting

“STORE IN MEMORY“ = Save settings, exit menu

“CANCEL“ = Do not save settings, exit menu

(The settings are only set temporarily, until the next time you switch off)

5.1 Switching radio text on and off „RADIOTXT“

If a DAB+ station transmits radio text, the following display options can be selected:

No display of the radio text "DISABLED"

Each time the text changes, it is scrolled through once and then the station

name is displayed again "ONCE oCH"

The radio text is always displayed and scrolled through endlessly until a new

radio text is broadcast, after which it is scrolled through endlessly again

"ENABLED"

5.2 Volume DAB+ „VOLUME“

Here you can set the basic volume of the DAB+ tuner so that it matches all other

sources perfectly. The values 0 to 16 can be set.

B-DAB-760 Tuner Modul DAB+/FM

5.3 Equalizer DAB+ „EQUALIZE“

Here you can select one of the predefined equalizer settings that apply to all DAB+

radio stations and that you like.

Disable „DISABLED“

Bass boost „BASS BST“

Jazz „JAZZ“

Live „LIVE“

Vocal „VOCAL“

Acoustic „ACOUSTIC“

5.4 Cut + „CUT PLUS“

Many stations mark their radio station names with a + at the end, for example SRF3+.

In this way, radio stations encoded with DAB+ can be distinguished from those with

DAB.

As almost all stations have a + at the end of their name because they use the new

standard, this information is more useless than helpful. This option can be used to

suppress the + at the end of the name.

The + is left as it is „NO CUT +“

The + is cut off „CUT +“

5.5 Headroom „HEADROOM“

The headroom setting allows experts to set the headroom for the tuner. There is

usually no need to make any changes here, 0 should usually be fine. However, if radio

stations are transmitted unusually loudly, the expert can make adjustments here.

Values from 0dB to -12dB can be set.

B-DAB-760 Tuner Modul DAB+/FM

5.6 DRC „DRC“

DRC stands for Dynamic Range Control and is only used by a few radio stations. This

setting influences the dynamic range of the broadcast radio signal. If the option is

activated, the radio station can use this, otherwise not.

Dynamic Range Control activated „DRC ON“

Dynamic Range Control deactivated „DRC OFF“

5.7 Antenna power supply „ANT PWR“

If you are using an active antenna that requires a 5V supply, this can be supplied

directly from the DAB+ tuner with the required voltage of 5V maximum approx. 30mA.

You can switch this supply voltage on or off here.

Supply voltage switched on „+5V ON“

Supply voltage switched off „+5V OFF“

ATTENTION: If the antenna is drawing too much current or there is a short circuit, "+5V

FAIL" is shown on the display and the power supply is automatically switched off. The

power supply is only switched on again when the device is switched on again using the

power switch.

5.8 Meter factor „METER F“

To ensure that the signal quality indicator always displays the correct value, the voltage

for full scale 10 can be set here. Correct with buttons 1 or 5 until the pointer instrument

is exactly at full scale 10. Due to ageing, not all pointer instruments are equally

sensitive. If the full deflection is no longer reached, the pointer instrument must be

checked.

Values from 0 to 254 can be set.

B-DAB-760 Tuner Modul DAB+/FM

5.9 Test tone „TESTTONE“

You can only navigate through the various test tones using buttons 1 and 5. This is not

an actual option that can be saved. This is only a temporary setting to test the audio

outputs.

Test signals switched off

Noise on both channels

Sine 1kHz left channel

Sine 1kHz right channel

Sine 1kHz both channels

5.10 FactoryReset „FA RESET“

To reprogram the DAB+/FM tuner from scratch, the entire memory content can be

deleted. All settings and all DAB+ and FM stations will be deleted.

To do this, press button 1 five times in succession in the "FA RESET" menu item, then

"RESET" appears in the display. As soon as "done" appears, everything is deleted and

you must switch the device off and on again using the main switch.

The following additional functions are available in the "FactoryReset" menu:

Button 14: Displays the number of preset stations in DAB and FM

Button 15: Displays the version of the software version

5.11 Exiting the settings Menu

You can exit this menu at any time while you are working on the settings without

saving. To do this, simply press the "CANCEL" button. The menu is exited and the

station nameis displayed again. It is IMPERATIVE that you then switch the device off

and on again using the main switch! If you do not do this, the settings will remain active

until the next restart.

Everything can also be discarded when sorting and deleting.

Press the "STORE IN MEMORY" button to exit the menu and save all settings.

B-DAB-760 Tuner Modul DAB+/FM

6 Save, listen and customize FM stations

When the DAB+/FM tuner is delivered, no stations are stored on it. To store the FM

stations, first switch on the device with the power switch on the far left by tilting it

upwards. Now make sure that the device is in FM mode. To do this, the second toggle

lever from the left, which is originally labeled "OPERATING MODE", must be tilted

upwards. Up is FM, down would be DAB+.

6.1 Saving FM stations automatically „SCAN“

You can now start the automatic station search. To do this, press the "STORE IN

MEMORY" button just below the display for about 5 seconds until the automatic station

search starts. This is signaled by "AutoMEM" followed by "Search" on the display.

Release the button immediately. The function now searches through all FM

frequencies and you can watch live as all frequencies are scanned from bottom to top.

If a station is found, it will be saved. Several options can be changed in the FM settings

to achieve the optimum result, so that not too many stations are stored that cannot be

heard or too few stations are found. As soon as the automatic search process is

complete, "END" is briefly displayed and then the first station found is tuned in. The

stations are sorted in ascending order of frequency.

During the search process, frequencies may sometimes be displayed incorrectly. Do

not be put off by this, the search will still function normally and correctly.

You can add or delete individual stations manually at any time.

6.2 Adding FM stations manually

If you want to add channels manually, proceed as follows:

1. Briefly press the "STORE IN MEMORY" button below the display. The display

will now show "MENU FM"

2. Turn the wheel clockwise to select the second option "MAN STOR"

3. Press the "MANUAL TUNING" button

4. The display shows "MAN TUNE" and after 2 seconds the frequency appears

5. As soon as you turn the wheel, the frequency is changed and you can hear it.

Tune to the desired station

6. Now press "ADD" to add the station. The station is added after the last stored

station. "added" appears briefly on the display.

B-DAB-760 Tuner Modul DAB+/FM

7. Repeat steps 4-5 as often as you like until all stations have been added

8. Then exit this mode by pressing the "MANUAL TUNING" button

9. Exit the Settings menu by pressing the "STORE IN MEMORY" button

You can recognizemanual mode by the fact that the blue "NOISE REDUCTION" lamp

lights up.

6.3 Listen to and change FM stations