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Re: [RFI] 6 Minutes - a record?

To: Andy <ingraham.ma.ultranet@rcn.com>, "rfi@contesting.com" <rfi@contesting.com>
Subject: Re: [RFI] 6 Minutes - a record?
From: Scott Yost <nm8rmedic@rocketmail.com>
Reply-to: Scott Yost <nm8rmedic@rocketmail.com>
Date: Sun, 27 May 2012 18:11:02 -0700 (PDT)
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
Andy,

Good info to know the about the battery charger's desulfating process.


The reason behind the original exchange I had with Jerry (KI4IO)was to share 
with him that recently I had been toggling breakers while tracking down an RFI 
source, and found that my relatively new Sanyo TV persisted in generating RFI 
for well over a minute after power was cut off to its outlet.  There must be 
some type of super capacitor in it.

The learning point was that quick cycling of circuit breakers may not be 
adequate with modern electronics, anymore.   And, thus, the title of his post.  
He now claims the record for the longest persisting RFI generator w/o power 
applied.


Again, thanks for sharing the info regarding the charger desulfating matter.  
We are building our knowledge base.


Scott
NM8R



________________________________
 From: Andy <ingraham.ma.ultranet@rcn.com>
To: RFI@contesting.com 
Sent: Sunday, May 20, 2012 8:45 AM
Subject: Re: [RFI] 6 Minutes - a record?
 
>
 Unplugging the unit did not make the interference immediately go away.
> Indeed the RFI did not go away until roughly 6 minutes after I unplugged
> the charger (batteries were still connected to the charger).

If this is a charger/desulfator, then it remains doing its stuff
(banging the battery at a few MHz to get the sulfate deposits off the
plates of the battery) even with no AC power.

Andy
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