[TowerTalk] Rooftop tower as Vertical Antenna

[Máximo EA1DDO_HK1H]

If length is limited, you can always add a wire from the top to any distance point. This way you will create an "Inverted L" antenna covering much lower bands.


73, Maximo

<http://foro.ea1ddo.es/>


________________________________
De: Máximo EA1DDO_HK1H <ea1ddo at hotmail.com>
Enviado: martes, 18 de diciembre de 2018 13:52
Para: towertalk at contesting.com
Asunto: RE: [TowerTalk] Rooftop tower as Vertical Antenna

If the tower is insulated at bottom, you can get a vertical antenna.
You just need to add some radials, better option are "elevated radials", and your remote tuner.


73, Maximo

<http://foro.ea1ddo.es/>


________________________________
De: TowerTalk <towertalk-bounces at contesting.com> en nombre de Wes Stewart <wes_n7ws at triconet.org>
Enviado: martes, 18 de diciembre de 2018 13:41
Para: towertalk at contesting.com
Asunto: Re: [TowerTalk] Rooftop tower as Vertical Antenna

Since you must have some grounding conductors connected to the tower for
lightning protection, "insulated" from the roof isn't insulated from ground.
You don't say what band(s) you might be interest in, but I don't see an easy way
to utilize this for much of anything other than holding up your tribander.

Wes  N7WS

On 12/18/2018 5:19 AM, Edward via TowerTalk wrote:
> Trying to be creative with my space/visual limitations. I have a Glen Martin 18’ tower/10’ mast, with tribander and V/UHF Discone, atop of a 35’ roof. The tower legs are on concrete blocks, insulated from the roof.
>
> Thinking about using the tower as a vertical. I have a remote tuner I can use at the base. Can throw out a few resonant radials, too. Thoughts?  Advice?
>
> 73,
> Ed NI6S/7Z1ES
> _

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