The trap is a coil and a capacitor in parrallel.
The antenna is for 40 and 80 meters and the trap works in the 40 mtr band.
From the feedingpoint to the trap is 2 times 10 mtrs (for 40 mtr) and then
some 7 mtrs for 80mtrs.
When you work on 40 , the antenna works only from the feedingpoint to the
trap because the circuit "cut" the antenna so you work then with 2 times 10
mtrs.
The manual says that traps can be measured,i tried by manual but no luck.





--
Met vriendelijke groet,

Hans Pluijgers
Hamcall: PA3HGT
www.pa3hgt.nl




I am not familiar with this antenna. Is this a pass
filter? If so it will not have a resonant frequency. It
will have a cut off point. The tool for that would be a
spectrum analyzer and a tracking generator.


PA3HGT wrote:
Hello,

I purchased a Palstar ZM30 antenna-analyzer recently and
i want to measure a trap of W3DZZ dipool (Fritzel
W3-2000). I want to measure resonance of the trap , i know the
trap is 100% ok and i disassembled from the antenna.
I did trying it by the book but no succes !
Has anyone some experience with this analyzer to measure
such things ?