On 2/9/2013 12:43 PM, Mark Robinson wrote:
Could he not also ground through an rf choke to bleed off static?
Lighting is NOT a DC event, it is an RF event. Chokes block it (until
they fry). Not a solution. As AC0C noted, the coax is grounded at the
house/shack, as it must be, which provides a DC path anyway.
As W8JI has observed with respect to several other problems of this
nature, we must consider the entire system. The length of the coax
matters a lot -- a long run of coax has a lot of inductance, so it's
close to an open circuit for lightning.
Jim Lux got it right -- a spark gap to a local rod does the job for
lightning and doesn't degrade the antenna system.
73, Jim K9YC
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