[Elecraft] Re: MFJ259

Marteinn Sverrisson tf3ma at raunvis.hi.is
Thu Mar 15 05:41:39 EST 2007


I read the KAT100 manual :-)

This is how you do:
Push TUNE and let the KAT100 find a good tune, preferable 1:1.

To read the L, C and NET( Cin/Cout) just push MENU and select ATU,
then scroll until you see Lxx.x uH and Cx.xx pF and NETx 1=Cin, 2=Cout,
note the frequency and you have all you need to work out the
actual antenna parameters, well these are the complementary values,
needed to get a 50 Ohm match.

If you have a computer connected to your K2, it is trivial to make
a small program which reads the ATU parameters and FREQ and 
calculates the actual R, X for the antenna.

You can even let the program scan the band(s) (you can use CW on
all bands, except 60m) and get a graph of the antenna parameters.

But remember you can not transmit outside the hambands....

Possibly I will try this out, writing a small TCL program,

but I have the VK5JST aerial analyzer which works well,
it took only abt a week, to get the kit from VK land to TF,
total cost incl post abt U$100.

73, matti

-- 
   Marteinn Sverrisson    TF3MA
          Langitangi 2    Internet: tf3ma [at] raunvis [dot] hi [dot] is
        270 Mosfellsbær   http://www.raunvis.hi.is/~tf3ma
               Iceland


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