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Radio signal drop when charging devices in car
jodrell
Posts: 51 Forum Member
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Hi.
I am finding that when I have something on charge in the car it causes the radio to either lose it's signal, or attenuate it dramatically.
I have a car with a factory fitted dab and fm radio, and a van with an fm radio with a plug in dab mini radio via the aux input, and when I plug in either mobile phone or sat nav to charge, as soon as the circuit kicks in, it either causes the dab to drop out if in a weakish signal area, or the fm to start hissing.
So, I tried the process of elimination. I doesn't matter which device I charge with, or which charging usb cable I use, or which 12v usb cigar lighter adapter I use, on either vehicle, the same happens.
I then eliminated the vehicle altogether by plugging the devices (individually) into a portable battery and therefore had no connection to the car at all and still causes the same problem!
All the radio equipment is factory fitted apart form the van portable dab aux in radio obviously.
If I don't charge anything, I get perfect reception almost everywhere. But I need the sat nav for work in the van, so need that plugged in all day.
Sorry for the long post! But can anyone shed any light on what is the problem or what I can do about it?
Many thanks.
I am finding that when I have something on charge in the car it causes the radio to either lose it's signal, or attenuate it dramatically.
I have a car with a factory fitted dab and fm radio, and a van with an fm radio with a plug in dab mini radio via the aux input, and when I plug in either mobile phone or sat nav to charge, as soon as the circuit kicks in, it either causes the dab to drop out if in a weakish signal area, or the fm to start hissing.
So, I tried the process of elimination. I doesn't matter which device I charge with, or which charging usb cable I use, or which 12v usb cigar lighter adapter I use, on either vehicle, the same happens.
I then eliminated the vehicle altogether by plugging the devices (individually) into a portable battery and therefore had no connection to the car at all and still causes the same problem!
All the radio equipment is factory fitted apart form the van portable dab aux in radio obviously.
If I don't charge anything, I get perfect reception almost everywhere. But I need the sat nav for work in the van, so need that plugged in all day.
Sorry for the long post! But can anyone shed any light on what is the problem or what I can do about it?
Many thanks.
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Comments
My Pure Highway produces slight interference on Band II when powered from the cigar lighter socket, does not matter because I only listen on Band II when no DAB signal.
What's the best quality 12v car adapter you can get that is most likely to not cause interference?
Also, even taking the power supply out of the equation doesn't help, as i was saying when using an external portable usb battery to charge from in the car, which means other than the device physically being inside the car, there is no connection to it.
Thanks again.
If the plug is mechanically suitable for your mobile phone, this PURE device should be fine because it's designed to work with a DAB radio and in-car aerial.. However, the output is only 0.5A which is probably enough for your DAB receiver but may not be sufficient for your satnav which are usually more power hungry.
I've just tried my Garmin TA20 charger (Part No. 320-00239-70, output up to 2.0A) with both my phone and Pure Highway and there's no interference. Similarly, the Pure charger doesn't cause interference when charging my phone.
DAB on Wheels offer a 45-day refund so you shouldn't go wrong with them.
Good listening !
Can anyone help
I have had a Denion DAB fitted so I can tune DAB through an FM channel on my Lexus IS250 which has been working fine until I have just had a dash cam hard wired in through the fuse box at Halfords, as soon as ignition comes on and dash cam starts to charge the DAB signal drops out, if I disconnect the camera(stop it charging) it is fine I have been told to put Ferrite connectors on which has not made a difference anyone have any advice please?
Thanks Andy
Read up on the new Consumer Rights Act 2015 and be prepared to quote chapter and verse.
Assuming that Halfords supplied the dash cam, tell them that their installation is not fit for purpose and reject it
But act quickly, the clock is ticking.
Found that my original Bauhn power plug creates no interference while another supposedly high quality one does. The interference is from the root another brands power plug whether or not it's in use.
Detailed result, see post 113 at
https://forums.digitalspy.com/discussion/2268322/aldi-car-dab-receiver-fm-transmitter/p5