N6LF's experiment showed that 4 elevated radials did as well as 60 ground
radials but his soil had good conductivity.
In average soil the elevated radials can be 5 db down - see ON4UN book.
Ignacy NO9E
On Thu, Jul 9, 2020 at 2:26 AM Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
wrote:
> > Of course laying down the radials for the 4 square is quite a chore and
> I would hate to go through all that work to come up with crappy system.
>
> Elevated radials?
>
>
> 73, Maximo
>
>
>
> <http://foro.ea1ddo.es/>
>
>
> ________________________________
> De: TowerTalk <towertalk-bounces@contesting.com> en nombre de Jeff Blaine
> <KeepWalking188@ac0c.com>
> Enviado: jueves, 9 de julio de 2020 2:19
> Para: towertalk@contesting.com <towertalk@contesting.com>
> Asunto: Re: [TowerTalk] 80 meter antenna choice
>
> Given those constraints, I would take a 4SQ over whatever ground I could
> manage vs. about anything else mentioned.
>
> 73/jeff/ac0c
> alpha-charlie-zero-charlie
> www.ac0c.com<http://www.ac0c.com>
>
>
> On 7/7/20 9:50 AM, Bill via TowerTalk wrote:
> > I've pretty well figured out what I will be doing on 40-6 meters.
> However, 80 is still undecided. Shunt feeding the tower is not going to
> work since I have all kinds of rotating antennas up the side of the tower.
> So, I'm left with three solutions.
> > Since the last guy point is at 96 ft I could have two inverted Vees
> apexed at 96 feet down to around 60 ft on the ends, at right angles to each
> other. That would give me the ability to switch directions and gain/lose
> around 5-10 db.
> > Second choice is to have a full size wire vertical with 60 full sized
> radials over average ground.
> > Third choice is more complex- a wire 4 square but...although the SE and
> SW facing verticals would be pretty close to having a good radial system
> The NE facing one is pretty limited due to lot lines and the location of
> the house/garage and the NW facing antenna is even more limited by the same
> constraints. This one has a driveway in the way. Most of the decent sized
> radials would be pointing away from the direction the NE and NW are facing
> and the others would be fairly short.
> > Of course laying down the radials for the 4 square is quite a chore and
> I would hate to go through all that work to come up with crappy system.
> Easiest of course, would be the inverted Vees. I've used this system in
> the past and it performed quite well. I'm concerned the lack of similar
> radial systems would ruin the F/B and gain and the compromised radial
> system of two of the antennas would also be an issue.
> > Your thoughts?
> > Bill KH7XS/K4XS (soon to be V31XX)
> >
> > Location of the station is V31 and interest is contesting and DXing
> > _______________________________________________
> >
> >
> >
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