My post should have read "...and restricts current flow TO BE from the
inside of the shield to..." Sorry about that. Too many edits :-)
The point of the choke balun is to block the current trying to flow down
the outside of the shield - either from the transmitter or the antenna.
It has NO effect on signals flowing "normally" between the antenna and
the inside of the shield.
As a secondary benefit not immediately germane to this discussion, it
also blocks unwanted signals being picked up on the outer surface of the
shield (noise and transmitted signals) from getting into the feed line.
73, Ward N0AX
On 6/23/2014 11:00 AM, towertalk-request@contesting.com wrote:
This increases the impedance of the path to the outer
surface of the shield and restricts current flow from the inside of the
shield to the antenna and vice versa.
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