"Rick (W-A-one-R-K-T)" wrote in message
news
On Sun, 01 Jul 2007 17:04:52 +0000, Ralph Mowery wrote:

The vertical on top should not have much effect on the installation if
the
ground plane elements are small

Suppose I forget the 6 meter beam (I'm not much of a 6-meter fan anyway)
and just put up a beam such as the Butternut Butterfly (although I've been
reading some not-so-nice things about that antenna so might bite the
bullet and go with something like a TA-33Jr) with a VHF gain vertical
above that?

The radials for the vertical will be 1/4 wavelength at 2 meters, or about
19 inches, and there are three of them.

How high above the beam should I space the vertical?

(The URLs you guys provided, nor anything else I've found, don't seem to
get into that...)


If you go about 4 or more feet above the beam I doubt the vertical and
radials will have much effect. I didn't mention it but the beams I have up
are all horizontal for working ssb. I don't do much FM from the house. I
do have a seperate antenna near the house about 20 feet up for the 2 meter
and 440 FM repeaters . Also a circular polorised beam for those beams to
work the satalites and they will work the FM repeaters also.

I don't think I would get the JR version of a triband. Not sure about how
much power they will take but not enough for many of the amplifiers. Think
I would go with the Mosley or HYGain for the triband beam. I never did
like the CC brand but that is personal and goes back to the days of the
Ringo and 11 element beams.

Here is a link to my setup.

http://home.earthlink.net/~ku4pt/ima...%20on%20tower/

I think you also asked about how far to put a vertical from the tower. Try
to get it 1/2 wavelength or more away. Any distance from the side of the
tower you put it will give it some lobes and distort the patern.