[Elecraft] KAT2 aligned and working but..

Don Wilhelm w3fpr at embarqmail.com
Fri Oct 5 14:17:25 EDT 2007


JT,

Unless you have somehow placed the W1 between the K2 and the *input* to 
the KAT2 (not an easy feat), you will not see any reduction of SWR on 
the antenna transmission line.

The KAT2 (or any tuner for that matter) does not change the antenna, it 
just adds inductance and capacity to reduce the SWR at *its* input - the 
SWR at its output will remain the same.

So, no problem, what you are seeing is the expected behavior.  If you 
feel you must reduce the SWR between the KAT2 output and the antenna, 
you will have to work on the antenna itself.  If you are feeding with 
coax, that may be a concern, but if you are feeding the antenna with low 
loss parallel transmission line, all should be good.

73,
Don W3FPR

JT Croteau wrote:
> So I just finished my KAT2 assembly and alignment.  I even just had a
> nice QSO on 20M using my 40M dipole.  However, while the KAT2 reports
> a nice 1.2:1 SWR and 5.6W POUT and 0.2 reflected, my external
> wattmeter (Elecraft W1) is still showing a horrible match with the SWR
> way off the scale.
>
>   


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