DAB intermittant muting

[Old Nick]

The DAB radio on my 2014 TDI Ultra keeps either muting or switching to the equivalent FM station. Could this be the that the antenna connection has become loose or the fact that I recently installed a NextBase 402G in-car camera and that is producing the problem?

The SD card navigation system also lost all the route information the other day, which again could be tied up with the above.

Any help would be much appreciated.

[noscream]

So I have a C7 A6 (2011 MMI firmware 770) with DAB and a blackvue front & rear cam. DR650GW 2CH, I also have DAB.
I fit to the interlink between 2 cameras a ferrite core & to the power line feeding the main camera from the driver side fuse box.

No DAB problems. Ferrite cores suppress electronic noise that can upset DAB.


http://www.maplin.co.uk/p/ferrite-clip-on-hem3012-n89ab
HEM3012 (2.5mm hole) for single core.
Code: N89AB


Some HD video cams can cause problems for DAB as they can interfere on high frequencies.
Also DAB antennae connection if loose would be a problem when VIDEO CAM powered off, so do a test, KILL the power to the cam for a day or two.

[Old Nick]

Great - many thanks. I have one already but thanks again for the Maplin link.

[fest0r]

I had a similar problem and it was the 12v to 5v adapter I was using to power my dash cam that was to blame. Switched over to a socket (running off a fuse tap) and this adapter:

Veetop® Dual USB High Speed (MFI Certified) Car Charger UPGRADE 3.4Amp 15.5W - 2.4A & 1.0A, Smart charging for all iPhones (5S, 5C, 5, 4S, 3GS, 3G),iPad Air, iPad Mini, Apple iOS7, iPod,iPod Touch, Samsung Galaxy S5/S4/S3/Note 2/3, Nexus, Sony, Nokia, HTC, LG, Motorora,Huawei, Lenovo, ZTE, GPS,Smartphones & Tablets (Black/Silver): Amazon.co.uk: Electronics

12v Female Car Cigar Cigarette Lighter Socket Plug Connector High Quality 2M 5A: Amazon.co.uk: Car & Motorbike

Great reception now

[Old Nick]

Another great reply - many thanks.

[Westyfield2]

If you go into the hidden green menu in the MMI, there's a way to show the radio signal strength. Then you can switch things off & on and see what happens.

Also, if you search the forums, there was someone who had a bad heated rear windscreen which caused radio problems and needed to be replaced.

[mckee25]

Yep i agree with all of the above, have exactly the same setup and once you attach the ferrite cores to the camera leads the DAB problem is solved....


Sent from my iPhone 6 using Tapatalk Pro

[wildbore]

Thank you both for the replies - especially Noscream for the very in-depth response. My rear view mirror mount is significantly chunkier than the one in the photo so that could be a bit tricky to work around, but I am definitely going to order one of these today and see how I get on.

Thanks

[mark86]

Yep i agree with all of the above, have exactly the same setup and once you attach the ferrite cores to the camera leads the DAB problem is solved....

shame that this £300 camera doesn't 'work out of the box' especially when this is a known issue for a while now