[TowerTalk] Multiband dipoles

[n4kg@juno.com]

What makes you think an untuned COIL
will make a better isolater than a 
PARALLEL  RESONANT  COIL and CAPACITOR?

X(L)  =  2 pi F L

Z(res) = Q X  =  Q x 2 x pi x F x L

SO, for a loaded Q of 100, the resonant impedance
will be 100 times the tuned coil inductance.

You would need a coil with 100 times the resonant coil's
inductance to have the same impedance magnitude,
ASSUMING the self resonant (due to stray capacitance)
frequency is above the operating frequency.

Tom  N4KG


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