[Elecraft] [K3] Noise from P3

[Ken Roberson]

Hello all,

Jim is right the ferrite cores will fix the problem,
Been there done that about two months ago .
Ferrite on all input and outputs.

73 all K5DNL
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--- On Wed, 3/23/11, Jim Brown <jim at audiosystemsgroup.com> wrote:

> From: Jim Brown <jim at audiosystemsgroup.com>
> Subject: Re: [Elecraft] [K3] Noise from P3
> To: elecraft at mailman.qth.net
> Date: Wednesday, March 23, 2011, 1:31 PM
> On 3/23/2011 10:09 AM, David Pratt
> wrote:
> >   Removing the 2 metre antenna also
> removes the noise.
> 
> How far is your 2M antenna from your P3?
> 
> A suggestion. Try adding several clamp-on ferrite cores to
> the power 
> cable and the BNC, placing them as close to the P3 as
> practical.  These 
> should be a SINGLE TURN for 2M (that is, simply clamped
> onto the cable), 
> two turns for 6M. IF these cables are radiating the trash,
> the cores can 
> help reduce it.
> 
> 73, Jim K9YC
> 
> 73, Jim K9YC
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