[Elecraft] RFI

[Radio Amateur N5GE]

On Sun, 8 Nov 2009 12:45:46 -0500, "Joe Subich, W4TV"
<lists at subich.com> wrote:

>
>
>> I am noticing keying errors on the k3 ERR PLL and it usually 
>> goes away when I shutdown the MKII interface. 
>
>microKEYER II does not interact with the K3 PLL/Synthesizer 
>in any way.  You are seeing "common mode" RF effecting the 
>K3.  That common mode RF can be getting there through any 
>device connected to the transceiver.  
>
>Make sure the feedline to your BigIR has an effective common 
>mode choke so that it does not act like a random radial and 
>put RF on the K3 and/or external interface.  
>
[snip]

Joe is absolutely right!  Verticals love to send RF into the shack on
the feed line unless there is a choke at the feed point of the
vertical.

73,

Tom, N5GE

n5ge at n5ge.com
K3 #806, K3 #1055, PR6,
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