Gentlemen, you are incorrect.
Verticals work just fine without any radials at all.
Now let's all get on the same page:
>> A Quarter Wavelength Vertical requires the kind of radial network you
guys have been talking about.
>> A Half Wavelength Vertical does not require any radials. It is a bear
to match and difficult to control the Common Mode Current, but it does not
need radials.
>> A Center-Fed Vertical Dipole (1/2 wavelength long) does not require any
radials and does not have any significant Common Mode Current problems.
>> For that matter, a very short Openwire-Fed, Center-Fed Vertical Dipole
does not require any radials at all but can be difficult to match on 80m...
but it is easily doable with a Ten-Tec matchbox.
But to say a vertical requires radials is wrong.
One of the best limited space, low profile antennas is a center-fed,
openwire fed short vertical. You can work all bands with it, with 40m and
above working quite well, albeit 80m is a bit down from a full size
horizontal, but at least you are on the air on that band. THIS is how you
make a vertical work efficiently when your tiny yard has no room for
radials.
73 - Rick, DJ0IP
(Nr. Frankfurt, Germany)
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of P C Andy
Anderson
Sent: Saturday, January 09, 2016 7:57 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] INFORMATION ABOUT VERTICAL ANTENNAS
For vertical to work at all it needs RADIALS. I have found that 30 radials
is a min and 60 is best.
73' Andy, W3LI
> Subject: [TenTec] INFORMATION ABOUT VERTICAL ANTENNAS
>
> I have been getting a lot of questions about my Vertical Antenna. I
> speak purely from my own personal experience of being an Amateur Radio
> Operator for the past 39 years.
>
> My 42 foot Hygain All Band Vertical is just 1 of my antennas. I also
> have a
>
> Hygain Long John 4 Element 20 Meter Monoband Beam, 50 feet high on a
> Universal Aluminum Tower and a
>
> Radio Works Full Wave Loop All Band Antenna.
>
> I also use an Ameritron AL-1200 Legal Limit Amplifier.
>
> Let me address my Vertcal Antenna setup. It is 42 feet high and I have
> 30 radials, with each radial being 35 feet long, going out in a fan
> type direction, for a total of over 1000 feet of radials.
>
> When I am running the TEN-TEC 20 meter SSB net, I use my Monoband
> 20 meter beam. When I switch to my Full Wave Loop, the signals drop about
2dB.
> When I switch to the Vertical Antenna the signal drops around 5dB and
> the weaker stations cannot be heard.
>
> When I am running the TEN-TEC 40 meter net, I use the Full Wave Loop.
> When I switch to the Vertical Antenna the signal drops about 4 to 5 dB
> and the weaker stations cannot be heard.
>
> The VSWR is good on all antennas, so the point I am trying to make is
> that my Vertical Antenna is a compromise antenna for me at my location.
>
> I know that I have worked many stations using a Vertical Antenna and
> the people "swear" by them. Most of these people live in restricted
> zone areas and cannot put up a beam/tower or a long wire or dipole.
>
> So what do they base their statements on, if they do not have another
> antenna to compare it with?
>
> I know that some Vertical Antenna users will not agree with me and
> that is their right to do so. I just wanted to respond with a blanket
> post to address all those who have been contacting me about Vertical
Antennas.
>
> I have never lived in a restricted zone area or sub-divison, but I
> still can empathize with those who are forced to use Verticals and
> Flagpoles or even Wires in their attic. If this works for you, I say
> God bless you for finding a way to get your signal out and enjoy your
hobby.
>
> Thank you for your time.
>
> John D. Occhipinti, K3UR
> Net Manager, ten_tec Amateur Radio Nets
>
> QRZ Page: http://www.qrz.com/db/k3ur
>
> Group Owner, ten_tec Amateur Radio Net Group
> http://groups.yahoo.com/group/ten_tec_radio_net/
>
> SoundCloud:
> https://soundcloud.com/john-occhipinti-k3ur/sets/brotherjohns-most-pop
> ular
>
> Facebook: https://www.facebook.com/john.occhipinti.14
>
> You Tube: https://www.youtube.com/my_videos?o=U
> _______________________________________________
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