DUDUOS 3.6E Official Update Now on OTA! & DUDUOS 3.7 Preview

TattooHH

Ando_Shampo
From what I understand, you need to purchase a DAB+ module and connect the included antenna to it. The previous topic concerns the FM antenna.

JhonnyD

Ando_Shampo Die DUDU Radios haben kein internes DAB Modul.
Du musst Dir ein USB DAB Adapter kaufen.

Ando_Shampo

JhonnyD danke dir für die schnelle Antwort. Ich schau mich mal um. Ist offtopic aber weist du wie man die Farben der Touch Buttons am Rand ändert? Die durchlaufen bei mir die Farben des Regenbogens und das nervt.

TakeMeOn

I'm truely digging the upcoming borderless mode, there are still issues here and there but I guess they'll be adressed but it's my goto display mode since it was introduced.

Also, I'm wondering if lyrics can't be grabbed from the music app to be displayed on the info screen rather than download it from internet ? Plexamp Finamp and even Symfonium allows to get them if they are available
Finally, a slider on the music widget to control the music would be perfect

Mikescotland

TattooHH I actually need to check it, because there should not be any option tied to blue antenna power, this wire would have 12V once Dudu is on and ACC on. If it's switching in synchro with antenna power in menu, it's a bug - if you turn off power via ISO socket, you loose the power on blue wire, which would be a nonsense..

TattooHH

So how do you explain the logic behind this switch? It might as well not even be there! Why have a constant voltage on the blue wire if you're not listening to the radio at the moment? It's just unnecessary energy consumption and a pointless drain on the antenna amplifier!

Mikescotland

TattooHH
I explain as follows:

Im using original antenna in my car that requires power over coaxial signal wire. So I have it ON. This switch serves that purpose - it's also called phantom power, meaning 12V is present in the middle pin of the radio ISO socket, that one when you plug your antenna.
Leaving this setting ON and connecting passive (without amp) antenna would destroy power transistor inside Dudu as the circuit would be shortened - electrically some antennas are shortened for direct current. Same principle if you shorten two wires of, let's say, 9V battery, sparks etc.
Now, why blue wire is always at 12V to power antenna amplifier, even if you don't listen to the radio? Very simple, because chip in the unit ALWAYS receives, not only if you listen or not, as there are some functionality like RDS traffic announcements, emergency broadcasts etc, which can immediately switch the unit to radio listening when such broadcast is being sent, no matter what source you're listening to. And to receive that announcement, guess what? Radio needs to have a signal from antenna all the time to receive RDS! And it won't, if the antenna amplifier is off because doesn't get 12V.
Energy consumption:
Antenna amplifiers consume a few milliampers. For the sake of math, let's say 5mA. Your car battery is around 60A.
So, if you connect it to the battery, and not drive, just leave it, one charge of you car battery would be enough to power antenna amplifier for roughly 2 years non stop.
I hope this explains.

jerome80

TattooHH bonjour je ne trouve pas cet options pour activer le 12v sur l'antenne électrique car je ne recois pas bien la radio je pense que mon amplificateur d'antenne nest pas alimenter ou trouver cet options que je puisse tester merci d'avance

Benlatak

Mikescotland If I understand what you mean, the switch and 12V on blue wire have no relation with each other. They are totally independant.

If it's right, how do you know that 12V switch is power on central pin of iso antenna connector ?

Thks

gismo

Benlatak If it's right, how do you know that 12V switch is power on central pin of iso antenna connector ?

That's how phantom power is defined. Also I've tested it and can confirm that it works this way, i.e. powers the center contact of the antenna coax. Some active antennas need that, passive antennas don't. My VW antennas need it BUT I also use a DAB splitter and diversity adapter and they don't pass on the phantom power internally (none of these does) which is why I need to apply extra 12V and I use the blue power antenna cable for that. It powers the splitter and diversity adapters and they also feed new phantom power into the coax after the blockage.

The blue power antenna cable is independent and has 12V whenever the radio is on - historically it's been for motorized antennas but can be used for external antenna amps, DAB splitters, etc.

TattooHH

gismo
Hello
so a short question at the end because we won't delve into the topic of what the switch is for?
Best regards

Mikescotland

TattooHH it's that phantom 12V power in the antenna socket (where you plug your antenna).

AZDOOD

SIM card support would be great. We are all guessing with SIM card compatibility in the USA. I'm assuming the internal hardware would have to be upgraded to run 5G. We are having to purchase 5G services and DUDU only supports 4G.
Mekede does a great job of advertising their products, but I have had nothing but complications with simple tasks. The devices are very cool but they are nowhere near as polished as advertised.

TattooHH

Mikescotland After disconnecting the blue ANT cable, the switch has no effect! I tested it in an underground garage, and without the blue cable connected, the radio only finds four radio stations with the switch off and on! After connecting the blue ANT cable, it finds 22 radio stations regardless of the switch. This means the switch function is either unnecessary or underdeveloped!

Mikescotland

TattooHH well that's expected, every electric device works much better when actually connected to the power supply 😉. Blue wire powers your antenna amplifier.
What was being said, the mentioned switch in Dudu setting has nothing to do with power on blue cable.
I'm not sure if that's a language barrier or maybe you misunderstood what is being talked about.
If you use external filter for antenna amplifier of course you must connect the blue wire.
Your questions were about the switch in the Dudu menu, which we already explained it has nothing to do with the blue antenna wire. Switch doesn't have any effect in your setup because your system doesn't take power for antenna amp from the antenna socket.

Przełącznik w menu dudu działa tylko na napięcie podane na gniazdko antenowe, środkowy pin. Nie ma ten przełącznik wpływu na niebieski kabel, na nim napięcie jest zawsze. Przełącznik, o którym mówisz, wykorzystywany jest jeśli podłączasz dudu do istniejącej fabrycznej instalacji antenowej, gdzie napięcie leci po tym samym koncentryku co sygnał. Jeśli masz osobny wzmacniacz, gdzie niebieski kabel też wystaje, podłączasz ten kabel pod niebieski z dudu i wszystko gra.
Jeśli nie podłączysz niebieskiego, i przełącznik w menu nie ma wpływu, znaczy że twój system nie pobiera napięcia z gniazda antenowego.

gismo

TattooHH After disconnecting the blue ANT cable, the switch has no effect!

As I said in my earlier post: Your adapter doesn't pass on radio's phantom power internally, it blocks it. That's why in your case the switch has no effect. You must connect the blue cable and then the adapter feeds new phantom power after the blockage.

TattooHH

Mikescotland
Maybe you could recommend a good DAB+ module, because dudu unfortunately doesn't have it in their offer?

Mikescotland

TattooHH no idea. In theory all single antenna usb devices should work (dual antenna people said they didn't) with dab-z app. There is a problem with these DAB dongles though, they are usually paired up with this foil strip antenna you mount on the windscreen and they are simply horrible, radio is cutting off and fading even in the high coverage area. If you want to go this way, you need to be prepared for an external good DAB antenna.
Not sure where you live in Poland, but I think it doesn't make much sense with DAB, only Polish radio mux is available, which means you have around max 8-10 stations, DAB in Poland is pretty much dead.
Also, it's DAB+ in PL, in theory better than "old" DAB but has SBR (meaning high frequencies are generated from lower etc artificially), which to be honest, good FM sounds better. I've tested last summer and in Gdansk we have barely 6 DAB stations, albeit with OK quality.
I live in the UK for the most of the year and DAB here is even worse, majority of 40 stations broadcast in mono with 64kbps bitrate and all sounds like a bad compressed ancient mp3.

TattooHH

Mikescotland I currently live in Hamburg, and DAB has a really wide selection, especially stations that aren't available on FM. Ok, I'll buy the first module I find and give it a try. Thanks so much for the extensive reply, and best regards.

Mikescotland

TattooHH ah OK. Yes, DAB in Germany is fine.
I still find online radio better! 😂

Astrolux

In Poland, DAB is generally broadcast within large cities. I have a DAB+ USB receiver connected to an OEM DAB antenna with an amplifier. The USB receiver supplies the antenna with a 5V USB power supply. The original antenna amplifier had a 12V power supply, so I disconnected the 5V on the receiver and connected the 12V from the blue "ANT" connector.

Romanus

YAOXILONG
Мой друг . Привет. вопрос такой. Если я тестирую программу и я буду продавать свое устройство, как передать новому владельцу , чтобы он так же , сделать регистрацию на себя, на свою электронную почту?

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