[Elecraft] Can I measure antenna impedance with K2?

[Don Wilhelm]

Kristinn,

After doing a TUNE that hopefully ends up with a low SWR, you can look 
at the ATU menu parameters for Lxx.x, Cxx.x and NET x to determine the 
configuration of the L network that the ATU found for the match.
You can then solve the L network equations to find the impedance of the 
end of your feedline in the shack.
See page 21 in the KAT2 manual.

73,
Don W3FPR

On 7/31/2014 2:26 AM, TF3KX wrote:
> Hi:I have a K2 QRP rig with a built-in ATU. Are there any suggestions on how
> I could use the K2 to estimate the input impedance of my antenna, or at
> least see if it is in resonance?Sure enough, I can simply make the ATU find
> its best match, but I would like to know if the antenna itself actually was
> close to resonance or even estimate its input impedance, as measured at the
> K2 antenna connector. Can I measure the antenna SWR and bypass the ATU while
> I am doing that, to get at least an idea?73 - Kristinn, TF3KX
>