[Elecraft] K3 (not S) Antenna tuner strangeness

Don Wilhelm donwilh at embarqmail.com
Mon Jul 25 14:11:03 EDT 2016


Brian,

You might try going into the KAT3 menu and go through the L1-L8 and 
C1-C8 settings to hear the relays click with each selection.

If all the relays are working, you should be able to do a check on the 
health of the inductors and capacitors using a method similar to that 
shown for the KAT100 in the right column of page 35 - manually select 
the inductors starting with L1 and see what the SWR is on a high band.  
With each other inductor, the SWR should increase.  Change to a lower 
band if the SWR gets too high to indicate (highest is 9.9).  Do the same 
for the capacitors.

I have not tried this technique with the KAT3 (but it should work) - I 
have used it with the KAT100 and the KAT2.

73,
Don W3FPR

On 7/25/2016 9:30 AM, brian wrote:
> Hi Don,
>
> Further insight needed.
>
> John and I have looked into the 80M tuner strangeness problem further.
> We both have qualitatively seen the same thing.  It is related to 
> trying to tune Z's that are on the order of 25-30 ohms on 160M/80M.
>



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