Another question related to the topic which is of actuality to me right now
is HOW MUCH would one need to detune a tower from for instance a Inv. L for
160 M. that is supported by the same.
If the tower itself is very close to resonance on the operating frequency is
100 Kc detuning then enough ? and how can one measure the L antennas degree
of interaction with the tower other than to see no change on the feedpoint
impedance ?
Henrik
OZ1ING
-----Oprindelig meddelelse-----
Fra: towertalk-admin@contesting.com
[mailto:towertalk-admin@contesting.com]På; vegne af RCARIELLO
Sendt: 6. august 2002 21:07
Til: towertalk@contesting.com; mwdink@eskimo.com
Emne: Re: [Towertalk] Interaction of Verticals
Dink,
Why bother putting up two antennas?
Put up the full size 1/4 wave vertical for 80 meters. Then use it as a base
feed 1/2 wave vertical for 40 meters.
Rich AA2MF
----- Original Message -----
From: <mwdink@eskimo.com>
To: <towertalk@contesting.com>
Sent: Tuesday, August 06, 2002 6:33 PM
Subject: [Towertalk] Interaction of Verticals
> Hello All
>
> I am looking at putting up two verticals as spare antennas
> on the 40m and 80m. These are meant to be something for
> use in SO2R, a multiplier radio, or just another choice
> in a growing antenna menu.
>
> What's the feeling on how close I can mount two separate
> verticals without interaction? These would probably be
> full size 1/4 wave antenna's and I hope to be able to
> put 18-24 inches between them. Only one would be used at a
> time.
>
> If there is a problem with interaction, what if detune
> the vertical not being used?
>
> 73
> dink
>
>
>
>
>
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