Ground Loop Issue-DAB

[Mark One]

I've got a Clarity DAB radio unit and I've having some issues. It's not a headunit, it's a separate adapter with a line out to the headunit.

The setup is:

Vehicle Aerial > DAB Aerial Amp (+12v powered) > Clarity DAB unit > Connects2 CD changer input box > Standard Ford HU

I get a hiss through system as well as some quiet bleepy noises that change frequency. If I try the Clarity DAB unit through headphones, it's perfect, so I'm thinking it's a ground loop.

Any tips?

 

[mctw]

Sounds like a ground loop! Is it a phono connection to the Ford HU? aka, the pair of round red and white connectors..

 

[MatthewR]

get a ground loop isolator perhaps? can get them off ebay quite cheep

 

[MT AUDIO]

tested the aux without the DAB unit plugged in?

 

[Mark One]

The Aux without the DAB unit is perfect.

I've just discovered ground loop isolators and I've got one on order now. Ill try that out.

 

[MT AUDIO]

ground loop isolators are not a cure, just a bodge, seperately earth your cigarette lighter which I am assuming is what your dab unit is powered by and should cure it