DAB interference ZT 190

Minimosher666 · 14th April 2017, 18:03

I have fitted a single din Pioneer head unit in my MG ZT 190 saloon. I have noticed that when the cigar lighter is in use (camera,usb charger) the signal is interfered with, or even lost.
Does anyone have any ideas what is causing this, and also a fix for this problem?

Thanks Minimosher666

baxlin · 14th April 2017, 18:44

Sorry, can't provide an solution, but I had exactly the same on my Lexus IS 300h from new. It went back more than once to sort it without success (I had my dash cam powered from there, so it was in use permanently), the main dealer had no idea that the ciggy lighter socket being in use was causing the problem.

It was a member on the Lexus equivalent of this forum who suggested unplugging the dashcam, DAB restored.

jubbarelly · 14th April 2017, 19:51

it will be the interference from the dash cam electronics.

Had the same happen to me, now removed and fitted a dedicated one that connects to the headunit.

The dashcam is now in the van and it interferes with the FM radio in the van, but I dont use the radio so alls good.

Burwell Mike · 15th April 2017, 06:36

I have had issues with Led lights blocking the DAB signal on my Navall3. Seems that cheap LED lights emit interference. Fitting a Ferrite Core over the feed to the light helped (it was a Navall 3 fitted on a boat) suggesting that some interference was on the power feed, but I guess this solution is not too practical on the car wiring.

Minimosher666 · 17th April 2017, 18:46

Thanks for the replies guys. Would the interference go if I fitted a permanent power supply to the dash cam from my fuse box? Thanks again Pete.

murphyv310 · 17th April 2017, 21:05

Hi.
Yes indeed some "hash" can radiate to Band 3 and will cause glitches. One of the issues of course is those window aerials that will pick all this hash from anything connected to the fag lighter socket.
Ideally you need a roof mounted proper Dab Band 3 aerial. This improves the signal to noise ratio and also due to the screening of the roof will cure the issue.

14th April 2017, 18:03	#1
Minimosher666 Regular poster MG ZT Join Date: Feb 2017 Location: Crewe Posts: 33 Thanks: 1 Thanked 0 Times in 0 Posts	DAB interference ZT 190 I have fitted a single din Pioneer head unit in my MG ZT 190 saloon. I have noticed that when the cigar lighter is in use (camera,usb charger) the signal is interfered with, or even lost. Does anyone have any ideas what is causing this, and also a fix for this problem? Thanks Minimosher666

14th April 2017, 18:44	#2
baxlin This is my second home Volvo C70 Convertible and JZR 3 wheeler Join Date: Nov 2006 Location: Tring, Herts Posts: 3,960 Thanks: 124 Thanked 173 Times in 124 Posts	Sorry, can't provide an solution, but I had exactly the same on my Lexus IS 300h from new. It went back more than once to sort it without success (I had my dash cam powered from there, so it was in use permanently), the main dealer had no idea that the ciggy lighter socket being in use was causing the problem. It was a member on the Lexus equivalent of this forum who suggested unplugging the dashcam, DAB restored. __________________ Only my opinion, obviously, so please don’t shoot me if it doesn’t match yours! Last edited by baxlin; 14th April 2017 at 18:48..

17th April 2017, 21:05	#6
murphyv310 This is my second home Hyundai i10 998cc Join Date: Mar 2012 Location: Kilmarnock Posts: 6,602 Thanks: 2,088 Thanked 2,298 Times in 1,349 Posts	Hi. Yes indeed some "hash" can radiate to Band 3 and will cause glitches. One of the issues of course is those window aerials that will pick all this hash from anything connected to the fag lighter socket. Ideally you need a roof mounted proper Dab Band 3 aerial. This improves the signal to noise ratio and also due to the screening of the roof will cure the issue. __________________ Cheers from Trevor MM0KJJ

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14th April 2017, 19:51	#3
jubbarelly I really should get out more....... MG ZT 180 SE Poseidon, Peugeot 508 GT Sport Tourer Join Date: Oct 2012 Location: Wolverhampton Posts: 2,509 Thanks: 232 Thanked 266 Times in 185 Posts	it will be the interference from the dash cam electronics. Had the same happen to me, now removed and fitted a dedicated one that connects to the headunit. The dashcam is now in the van and it interferes with the FM radio in the van, but I dont use the radio so alls good.

15th April 2017, 06:36	#4
Burwell Mike Avid contributor MG ZT-T 260 Join Date: Dec 2013 Location: Cambridge Posts: 116 Thanks: 49 Thanked 77 Times in 51 Posts	I have had issues with Led lights blocking the DAB signal on my Navall3. Seems that cheap LED lights emit interference. Fitting a Ferrite Core over the feed to the light helped (it was a Navall 3 fitted on a boat) suggesting that some interference was on the power feed, but I guess this solution is not too practical on the car wiring.

17th April 2017, 18:46	#5
Minimosher666 Regular poster MG ZT Join Date: Feb 2017 Location: Crewe Posts: 33 Thanks: 1 Thanked 0 Times in 0 Posts	Thanks for the replies guys. Would the interference go if I fitted a permanent power supply to the dash cam from my fuse box? Thanks again Pete.