>"...so what is the best way to drain static off a vertical with either a
resistor or choke?"
I'll throw this out for others to comment on, but this is the general rule
of thumb I've used when calculating the value of a static choke across a
typical base-fed vertical radiator:
Assuming a typical 1/4-wave vertical with an adequate radial field, the base
impedance is approximately Z=36+j0. Find a value of L where the reactance
is at least 10x the base impedance so that the base Z is not appreciably
affected by the parallel inductance of the choke. For 160m, Xc=2pi*fL and
L=Xc/(2Pi*f). L computes to about 33 uH.
As a practical matter, I use a J.W. Miller #5250-RC 100 uH choke on a 160m
Marconi "T." Prior to adding the choke, the SWR bridge diodes in my
Elecraft K3 would blow open with every wind storm. Be mindful of the
self-resonant frequency when selecting from a datasheet.
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