Frans,
I have made some more investigations before reading your message. Here are the
results:
1. Charging my iPad with my charger in another aircraft (Dyn Aero MCR 01): no
noise.
2. Charging my iPad with a friend's charger in my aircraft: same noise as with
my own charger.
So it seems that the problem comes from the configuration of my panel and
wiring:
my cigar lighter is located very close to the Com radio while in the MCR is
located very far on the passenger side.
3. Charging my iPad with my charger in my aircraft: at the same time I get
the
noise in the headset, the same noise is generated in a portable radio located
at about 10 meters from the cockpit.
4. Charging my iPad with my charger in my car: a portable radio placed close
to the iPad or charger does not make noise.
This testing may allow you to better diagnose the cause of the problem.
I will try with the antenna disconnected from the radio later on, as you
suggested.
Regards
Remi
[quote="frans@privatepilots.nl"]On 06/14/2013 09:30 PM, Guerner Remi wrote:
It may help to establish how the noise gets into the radio. What happens
if you disconnect the antenna plug? If the noise persists, the
interference enters the radio via the power supply or via direct
radiation into the radio. (The latter can be established by moving the
box closer or further away from the radio and see if it makes a
difference). If the noise disappears when you disconnect the antenna it
proves that the noise enters via the antenna (or antenna wire).
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=402809#402809
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