[TowerTalk] Feedline (choke) question

[David Gilbert]

I already answered that.  RF isn't DC ... it doesn't just flow to the 
earth and disappear.  It flows back and forth every half cycle. Whatever 
current flow may occur between the coax and ground is still flowing on 
the coax ... and since current doesn't just pile up on a conductor it is 
going either back to the antenna or back to the transmitter.  All you're 
doing is probably changing the phase of it due to the capacitive effect 
of the earth.

You ARE NOT just bleeding some static charge off to the earth.

Dave   AB7E


On 9/30/2025 3:32 AM, Brian Beezley wrote:
> "Reference my early example of a portable rig with no connection to 
> ground anywhere."
>
>
> Dave, I'm curious what you made of my antenna model that showed 
> common-mode current flowing to ground from the coax shield when 
> neither the antenna nor transmitter was grounded.
>
> Brian
>
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