http://elecraft.85.s1.nabble.com/OT-Interesting-Accident-with-Homebrew-Vertical-tp4511024p4511754.html
> I think the original question was.....Can you feed the vertical section with
> the braid and radials with center conductor?
> I guess technically you could since neither one is grounded. It's weird to
> think about.
> Also I'm not too sure about all that "radial tuning" and canceling of
> horizontal radiation if the radial system is only a few feet from the dirt.
> It's interesting to think about how radiation is "canceled". Where's it go?
> Think I'll go to bed and dream about this. 73
> Steve
> N4LQ
> ----- Original Message -----
> From: "Don Wilhelm" <
[hidden email]>
> To: "Robert Fish" <
[hidden email]>
> Cc: <
[hidden email]>
> Sent: Wednesday, February 03, 2010 11:06 PM
> Subject: Re: [Elecraft] OT - Interesting Accident with Homebrew Vertical
>
>
>
>> Bob,
>>
>> Indeed elevated radials *are* a part of the antenna (actually radials in
>> the ground are too). Elevated radials must be tuned (while buried
>> radials do not need to be). To do that properly, connect each one - one
>> at a time - and resonate it with the vertical element. When all have
>> been tuned, then they can be connected together.
>> To cancel the horizontal radiation component, the radials should be
>> oriented in opposing directions - any pair should be in a straight
>> line. 4 radials arranged 90 degrees apart is normally sufficient, and
>> in a pinch, 2 placed 180 degrees apart are sufficient.
>>
>> It matters not whether the vertical part is fed from the center
>> conductor or the shield. The currents on the inside of the coax are
>> balanced (equal and opposite currents). The "magic" is to keep the
>> current off the outside of the coax shield, and that is what common mode
>> chokes (current baluns) should accomplish.
>>
>> 73,
>> Don W3FPR
>>
>> Robert Fish wrote:
>>
>>> I noticed
>>> that I had hooked up the shield of the coax to the vertical element and
>>> the center conductor to the radials. (I was experimenting with running
>>> 180 deg out of phase for end fire and forgot to change it back). I am
>>> not sure what that proves except that he radials really are half the
>>> antenna. Working Africa from here on the west coast with only 100 watts
>>> is pretty rare these days, so the backwards hookup is obviously working.
>>>
>>> I guess it makes sense that it shouldn't matter. What do you guys think?
>>>
>>>
>>>
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