I have just installed a MTCB-KLD6-V2.86 quad core head unit running android kit kat 4.4
The AM radio reception is awful, it crackles and has a cracked record sound every few seconds.
The FM Band works great, so, I am assuming that there is no problems with the antenna.
The unit this one replaced was also a Chinese android unit and there was zero problems with the AM Band.
Any suggestions as what the problem could be?
It would seem that nobody else has had this problem?
The radio reception (am and fm) is a little weak on these units compared to some factory radios, but no one has ever talked about being different between AM and FM. If I had to guess it would be an issue your antenna or the antenna coax connection.
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I replaced my motherboard recently the original was a kld1 and radio reception was poor.
I have improved reception for the kld2 v2..67, however in comparison to the factory fitted car stereo it looses reception and loc does not work. As I drive to work (30 miles) and it is annoying that I loose reception and have to manually find another frequency.
I have the factory mcu and the unit is a witson unit and I have tested that the amplified power output works.
I see some hardware mods, I would prefer a working software mcu/rom combination that worked.
If your car has an amplified antenna from the factory, you may need to add a power injector to allow it to work properly. The factory head unit could have provided power to the antenna, and these Android units do not.
Thanks. I am using this below which I takes power from switched blue/white cable in my car. This pushes 12V from the car to the aerial bypassing the need for android input.
Am I the only one with poor radio reception/loc not working?
http://www.suzuki-forums.com/attachments/2g-2006-vitara-grand-vitara/49441d1431649159-replacement-radio-aerial-issue-ct27aa50_suzuki_swift_aerial_adapter_din_female-1-.jpg
dazza007 said:
I loose reception and have to manually find another frequency.
I have the factory mcu and the unit is a witson unit and I have tested that the amplified power output works.
I see some hardware mods, I would prefer a working software mcu/rom combination that worked.
Click to expand...
Click to collapse
"Alternative frequency" (AF) function doesn't work in these HU, and it's a well known problem.
It's not a matter of a poor antenna signal, but a software (if not hardware) bug.
Attempts are being carried on by some developers to find a solution (modding the radio app), but unfortunately until now without success.
themissionimpossible said:
"Alternative frequency" (AF) function doesn't work in these HU, and it's a well known problem.
It's not a matter of a poor antenna signal, but a software (if not hardware) bug.
Attempts are being carried on by some developers to find a solution (modding the radio app), but unfortunately until now without success.
Click to expand...
Click to collapse
I did assume that this was the case. Thank you for confirming this.
Hi all,
I use Bluetooth headphones everyday on my way to work. Since I left my LG G3 for this OP3 I have audio cuts when outdoors. No issue indoors.
Happens with Oxygen and CM aswell, so not likely ROM/Driver related.
Is it due aluminum body?
same issue
I went from OPO to OP3. Used to get Bluetooth range throughout my entire house to stationary speaker. Now 4' away is breaking up. Any ideas about this issue? Additionally, Bluetooth doesn't connect to devices automatically like all my other phones have. Feels like a software issue.
Hello,
as i crashed my old pumpkin head unit, i am looking for a new one, for my Audi A4
(my current model is out of stock)
I consider ordering this one now:
http://www.erisinwholesale.com/special-car-dvd/audi/erisin-es3078a-7-android-51-car-dvd-gps-dab-for-audi-a4-497.html
This one has already the Audi/VW main-connector right at the radio, also a twin fakra connector and even an integrated CAN-modul. So there will be way less wiring spaghetti behind the unit, which seems really nice to me.
But i am a bit afraid, that the radio reception could be bad...
I don´t really trust this ex China-factory twin Fakra connector there. Usually one had to use a external powered antenna boost-adapter for those android head units. And even with those boost-adapters, the reception was never as good, as with the original radio. Because no adapter could replace the twin-receiver diversity function of the original VW/Audi radios.
Sooo....
With this new unit, i would have to directly connect my antennas... without any adapters or boosters...
Has anyone an idea if this really works well on those new units??
I don´t think those new units have two receivers installed?! Or do they?
Is this twin fakra adapter at least powered?
I hope someone has already played with a similar unit and can give some comments..
thanks!
In theory it should be better with a port for the diversity antenna as well. At the end of the day this is the main reason why the original radio has better reception.
I've got the Erisin ES3015V which I suspect is similar (it has the same VW-specific connections). I have never owned any other android head unit, so I can't compare the radio reception, but I can tell you that it's not as good as the original radio. My guess is it's somewhere in between.
Hi,
Thanks!
Yes, your ES3015V should be pretty much the same, just with a different front cover. I have ordered this ES3078A now anyhow... Hope for the best...
Do you know, is this Twin-Fakra Connector at least powered? (12V) or do we need to add something here on our own?
Are you satisfied with the rear speaker volume?
This is also something, i had to modify on my first head unit.
Pedaaa said:
Hi,
Thanks!
Yes, your ES3015V should be pretty much the same, just with a different front cover. I have ordered this ES3078A now anyhow... Hope for the best...
Do you know, is this Twin-Fakra Connector at least powered? (12V) or do we need to add something here on our own?
Are you satisfied with the rear speaker volume?
This is also something, i had to modify on my first head unit.
Click to expand...
Click to collapse
Sorry, don't know if it's powered or not, but I'd be very interested in hearing about your findings .I haven't noticed the sound from the rear speakers being too low, but then again, sound quality overall isn't exactly brilliant. I've been thinking about adding a powered subwoofer, but I've read a lot of stuff on here about these units being underpowered on the RCA outputs, so I'm not sure if it'll be worth it.
I've had excellent experience with pioneer and kenwood units that implement techniques to fall back on FM signal when the DAB coverage of a particular station is intermittent. They seem to use algorithms to time-align and perform volume matching on both signals, along with some buffering that allows them to perfectly switch to FM signal when the DAB service would otherwise cut out.
I am wondering if there's a combination of hard- and software that manages a similar solution that can be employed on MTCD units.
I think the DAB and FM have to be on the same chip for this and its only the non usb type DAB box for MTCB/D units that has an FM/DAB chip, it does support station following but I dont think its implemented.
Some one would have to mod the app to get it to work. theoretically you could write something to switch to the FM signal of the radio app if you have the usb DAB device.
Both Signals need o be fed to a Buffer.
Yes both dab fm or two dab signals are also possible.
Now audio signals need to be compared. This leeds to delay match which can the be used to align audio Volume and Frequency response. Regards Greg
Hi,
I bought a XTRONS TA708PIL about 2 years ago and i've had issues with the signal quality of FM radio stations and DAB+ pretty much since owning the head unit.
I purchased a Eightwood 12v antenna which worked with the DAB+ USB using DAB-Z for a couple of months then the quality seemed to degrade again.
Recently updated the DAB-Z app and found that signal quality has improved on some stations that didn't really suffer with signal issues seem to have started in certain parts of my regular journey to work.
FM only works when car is stationary. Updated to NavRadio as I read this was the better app to use but still issues.
The antenna is grounded to the body and the 12v supplied connecting to the fuse box.
Android 8.1
andy25hill said:
Hi,
I bought a XTRONS TA708PIL about 2 years ago and i've had issues with the signal quality of FM radio stations and DAB+ pretty much since owning the head unit.
I purchased a Eightwood 12v antenna which worked with the DAB+ USB using DAB-Z for a couple of months then the quality seemed to degrade again.
Recently updated the DAB-Z app and found that signal quality has improved on some stations that didn't really suffer with signal issues seem to have started in certain parts of my regular journey to work.
FM only works when car is stationary. Updated to NavRadio as I read this was the better app to use but still issues.
The antenna is grounded to the body and the 12v supplied connecting to the fuse box.
Android 8.1
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Click to collapse
Hi, I have a similar set up and I have the same issue, I have thought of changing the roof antenna, then my neighbour said she was having same problem in her car with everything all built in. I have a Amateur radio licence, the fist thing I was taught, you can have the best receiver in the world but if you dont have the right antenna to match, my thoughts are a better roof antenna, so I think I will try that first. There are areas where the digital signal can be interrupted. Weather to and built up areas. Just my thoughts, good luck, Bill