[TowerTalk] Vertical dipole other choices?

[Gedas]

Hi Rick, very interesting. Did you have any matching network at the base 
where the coax connected to the vertical? If not I would have expected 
significant losses resulting in possibly lower received signals from the 
1/2-wave vertical.

Gedas, W8BYA EN70JT

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On 10/27/2020 4:28 PM, Richard (Rick) Karlquist wrote:
>
>
> On 10/27/2020 11:56 AM, Rob Atkinson wrote:
>> Unrelated:  In the Nov. QST in the Doctor Is In column, the author
>> Joel Hallas W1ZR, states that a 180 degree base fed vertical monopole
>> needs no ground system, only "short counterpoise rods, which look like
>> radials but are usually only 4-6 feet long, to provide a connection
>> point for the shield of the coax."  That is utterly incorrect. It is
>> voltage fed, but it is still a monopole, and is still unbalanced and
>> induces currents in the earth.  It needs a ground system.
>>
>> 73
>> Rob
>> K5UJ
>
> I built 1/4 wave and 1/2 wave verticals for 20 meters.
> The 1/4 one one had 32 1/4 wave radials.  The 1/2 wave
> one had only the shield of the feedline as a counterpoise.
> I did an A/B test using received signals off the air.
> I could not discern any consistent advantage of one
> versus the other.   YMMV.
>
> Rick N6RK
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