[Antennas] Want HF No Radials Vertical

Sun, 18 Jan 2004 15:45:08 -0500

Bob, when salt water comes into the equation you get away with pretty much
anything! When we speak of the efficiency of a vertical (esp radial less),
we generally assume poor/average ground.

I used to operate from a villa on the South Caost of Sri Lanka, at around
the same distance as you are from the ocean, running an inverted vee tied to
the rafters of the roof of the single story house. The rig was an FT7B
running 40w. I had no problems working pile ups of USA/EU/AF on 40 CW. Same
wire dipole at the home QTH (12 miles inland) was good for nothing at the
same height outside and not much even at 30'

I am an ex /MM op and can never stress enough the advantages of a salt water
ground plane!

73,
Ron, 4S7RO/6Y5

----- Original Message -----
From: Bob Nielsen <[email protected]>
To: <[email protected]>
Sent: Sunday, January 18, 2004 3:22 PM
Subject: Re: [Antennas] Want HF No Radials Vertical

> The K7LXC/N0AX report on several multiband verticals (available from
> <http://www.championradio.com>) gave good marks to the Cushcraft R8,
> which uses a counterpoise, but no radials (they did have a radial
> installation, since they were comparing a number of verticals as well
> as a 1/4-wave reference antenna).  I have a Hy-Gain AV-640, which is
> similar (but without traps) at 15' and it performs better than I had
> expected, including numerous EU, AF, AS, SA and OC contacts on 40-10m
> at 100W or less in the past year (no radials, but I have fairly good
> soil with salt water 400 ft. away).  I'm sure a LP or yagi stack will
> do much better, but one can use a compromise antenna and still enjoy
> the hobby.
>
> 73,
> Bob N7XY
> Bainbridge Island, WA
> IOTA NA-065
>
> On Sun, Jan 18, 2004 at 12:19:18PM -0500, Ron & Madhavi wrote:
> > I have a neighbour (1km!) running one of those MFJ verticals. He can't
hear
> > more than half the stuff I hear on my 33' crude, homebrew wire vertical
on
> > 40m (6 radials). Another pal who is 5km from us both, runs an inverted
vee
> > dipole at about 70' and I am at most a S unit down (on some paths I am 1
s
> > unit stronger). Sorry, but we have concluded that those MFJs and other
no
> > radials verticals are no good at all. Of course theory makes it obvious.
> >
> > If ou have no space for radials I would recommend you try a vertical
dipole
> > (even if it is loaded).
> >
> > 73,
> > Ron
> > ----- Original Message -----
> > From: Christopher Boone <[email protected]>
> > To: Jerry <[email protected]>
> > Cc: <[email protected]>
> > Sent: Saturday, January 17, 2004 11:52 PM
> > Subject: Re: [Antennas] Want HF No Radials Vertical
> >
> >
> > > If you dont want a GAP, I would suggest the MFJ (ok ok) 80-2mtr topfed
> > > vertical....looks impressive anyway....why no GAP?
> > >
> > > Chris
> > > WB5ITT
> > >
> > > Jerry wrote:
> > >
> > > > Please reply off list to [email protected]
> > > >
> > > > Looking for a no radials HF vertical, not a GAP,  that covers 40
thru 10
> > meters.
> > > > Local pickup would be nice but let me know what you have and price
> > including shipping?
> > > > Thanks from Jerry in Sacramento, CA.
> > >
> - - -
>
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