[RFI] Big Farad Audio Caps & RFI?

Michael Germino ad6aa at sbcglobal.net
Tue Apr 13 14:18:42 PDT 2010

I use the "Big Cap" to keep the radio from shutting off when I start the pickup.  When I start the pickup the voltage drops enough to shut off the radio without the Cap.  My cables to the battery are oversized and I still got enough of a voltage drop to shut off my 706 and now my ic-7000.

And yes, I have heard lots of times you shouldn't start your engine with the radio on because of voltage spikes.  I am a farmer and during irrigation season I start my engine more times in a day than most people in a month.  The radio is on all day long.

With an old battery the radio will still shutoff, even with the Cap.  I think it is a one Farad cap.


----- Original Message ----
From: Eric - VE3GSI <ve3gsi at sympatico.ca>
To: RFI List <rfi at contesting.com>
Sent: Mon, April 12, 2010 7:02:58 PM
Subject: Re: [RFI] Big Farad Audio Caps & RFI?

Is there an advantage using those 'big caps' when mobile? Perhaps a positive
noise reduction from the car electrical/electronics?

Eric - VE3GSI 

-----Original Message-----
From: Michael Germino
Sent: April-11-10 7:22 PM
To: doc at kd4e.com; RFI List
Subject: Re: [RFI] Big Farad Audio Caps & RFI?

On that one, no.  I use a smaller Audio Cap than the one you linked to, with
my IC-7000.  It has a meter display and I have not had a problem with any


----- Original Message ----
From: kd4e <doc at kd4e.com>
To: RFI List <rfi at contesting.com>
Sent: Sun, April 11, 2010 12:34:00 PM
Subject: [RFI] Big Farad Audio Caps & RFI?

Has anyone put an AM/SW portable near these things?


I am wondering if the meter display electronics generate any 


.Thanks! & 73, doc, KD4E
.Have an http://ultrafidian.com day!

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