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From: Buly <atlasyts@bellsouth.net>
Subject: Re: [FlyRotary] Re: Radio noise
Date: Tue, 14 Feb 2006 10:28:26 -0500
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Ernest, All my grounds are screwed into a single distribution block  
with lots of screw terminals. If you mean joining all the radio  
grounds into a single "pig tail" , I have not done that.
Buly


On Feb 14, 2006, at 10:14 AM, Ernest Christley wrote:

> Bulent Aliev wrote:
>
>> Here is a problem for you large brained engineers:
>> My radio is picking up noise from all the electrical motors  
>> including  the alternator. I took the alternator to the shop and  
>> checked "as  new". When I disconnect the coax from the radio, the  
>> noises stop,  which leads me to believe the antenna coax is  
>> picking up the  interference somehow. Guy at the airport suggested  
>> a clamp-on ferrite  filter on the coax. I bought one tonight, but  
>> did not have time to  test it.
>> The offenders are: fuel pumps, nose gear motor and alternator.
>> Any Ideas?
>
>
> The fact that you have multiple antagonist leads me to believe that  
> you might not have a common ground for your radios.  90% of radio  
> noise problems are eliminated by simply bringing all avionics  
> grounds to a single point.
>
> -- 
>         ,|"|"|,               Ernest Christley     |
> ----===<{{(oQo)}}>===----     Dyke Delta Builder    |
>        o|  d  |o          www.ernest.isa-geek.org  |
>
> --
> Homepage:  http://www.flyrotary.com/
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