[Elecraft] K3 (not S) Antenna tuner strangeness

Brian Hunt huntinhmb at coastside.net
Mon Jul 25 14:08:30 EDT 2016


Hi Brian,
Just a thought, but given the KAT3 uses discrete components for C and L, 
what you are seeing may be as close as you can get.  If you have 
calculated the tuner parameters from the Z you are seeing at the antenna 
going into the tuner, compare those with the discrete combinations 
possible in the tuner.  Find the closest ones and then work backwards to 
the SWR value.  SimSmith Smith chart software is great for this.  The 
KAT3 schematic is included in the K3 schematics .pdf file.

I ran into a similar situation on 40 meters with an MFJ remote 
autotuner.  Drove me nuts until I figured it out.

Good luck!

Brian, K0DTJ

On 7/25/2016 06:30, brian wrote:
> Further insight needed.
>



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