>"...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 basefed vertical radiator:
Assuming a typical 1/4wave 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 #5250RC 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
selfresonant frequency when selecting from a datasheet.
https://www.farnell.com/datasheets/1913535.pdf
Paul, W9AC
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