Topband: 160 meter elevated vertical

[Bob K6UJ]

I hear what you are saying Guy.
Every vertical installation is a unique situation.
I dont have enough technical knowledge to determine 
when my  vertical antennas could do without a common mode choke.  
I plan to continue using a choke on all my verticals to be safe.  
 

73,
Bob
K6UJ


On Oct 20, 2012, at 5:02 PM, Guy Olinger K2AV wrote:

> "Just DO the common mode choke on any vertical.  Don't tempt Murphy."
> 
> I stand by my comments.
> 
> I find after some interesting conversations that readers of posts
> often read as if written to them.  So I write my posts as to the
> general audience.  If an expressed situation is so specific as to be
> exceptional to general use, I reply in private.
> 
> *Of course* there will be a few situations where this general purpose
> rule won't add any value.  The question is whether a specific owner
> has the equipment and technical knowledge to identify those
> situations, which are highly specific and subject to all kinds of
> local influences, and whether one can post a textbook to explain the
> choices.
> 
> And while theoretical situations are raised, I continue to this day
> finding situation after situation where a vertical needs common mode
> blocking to help fix it, and I've not ever once had to tell someone to
> REMOVE a common mode choke at a vertical feedpoint.
> 
> I was speaking of vertical feedpoints.  Dipoles are another subject.
> 
> 73, Guy.
> _______________________________________________
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