Topband: Detuning a grounded gamma-matched tower.

Ryszard Tymkiewicz rtym at ippt.gov.pl
Wed Aug 16 12:16:59 EDT 2006


Hi All,
As my new phased K9AY is located quite close to the tower I'v decided
to detune the tower as is described in John's book (page 7-94 , Fig 7-135).
My gamma-match attachment point  is 9 meters high. My question is what is the best way 
to measure a capacitor using AUTEK VA-1? I connected AUTEK in series with 
variable capacitor and I'v found  the minimum impedance for C 400 pF on 160m( Z=45 ohm) and 
C 70 pF on 80m (Z= 30 ohm). I'm just not sure if connecting VA1 in series with gamma line 
the measurement error is not too big?

                        73 
                         Rys
                      SP5EWY


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