[RFI] Strange RFI

David Robbins k1ttt at arrl.net
Sun Aug 30 15:57:03 EDT 2015


Well, at least its not turning it off... that would be more annoying if
someone was trying to watch it.  wrap the power and signal cords on some
ferrites and it will probably be ok.

David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net


-----Original Message-----
From: RFI [mailto:rfi-bounces at contesting.com] On Behalf Of David C. Hallam
Sent: Sunday, August 30, 2015 17:36
To: rfi at contesting.com
Subject: Re: [RFI] Strange RFI

My problem is not that interference in the normal way we think of
interference.  I do not hear my signal in the speakers nor does it seem to
affect the system while it is playing,  The only effect I have observed is
the RF switching on the Sony CDP CX 455 deck.

David
KW4DH

On 8/30/2015 12:44 PM, David Cole wrote:
> Hi,
> Take a look at:
> http://audiosystemsgroup.com/RFI-Ham.pdf
> I suspect your question will be answered there...  Sounds like RF 
> getting into things, either direct, or as common mode.  I also suspect 
> a Mix 31 ferrite with a few turns of cable on all cables on the CD 
> player will end the problem...
>
> --
> There are two possible outcomes: if the result confirms the hypothesis,
then you've made a measurement.
> If the result is contrary to the hypothesis, then you've made a discovery.
> Enrico Fermi
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