[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [IRCA] Ground radials was New receiver ground
- Subject: Re: [IRCA] Ground radials was New receiver ground
- From: "Craig Healy" <bubba@xxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 12 Aug 2007 08:39:57 -0400
- Organization: Hazzard gang
> I have used ground radials, over 120 of them for my vertical. They are
> 5-8 feet long and lay on top of the ground. They do work, The radials
> can have a directional pattern too. I still like burying my ground
> system though. Also under the same tree I have 8-10 five foot ground
> rods (copper pipe) buried in a circle and connected with #12 bare solid
> copper wire. I installed that for the K9AY I had for a couple seasons.
> Now I use it for the WNW EWE.
One thing used for grounds in broadcast is copper screening. For
receive-only, some lengths of copper window screening or even chicken wire
will work. For portable work, a couple of 25' rolls of chicken wire may
even work better than ground rods. Certainly easier to set up. When I get
some time, I'll see how it works.
Many years ago, QST had an article on a three element vertical antenna array
for 40 meters. By putting the radials out in a fan shape in the desired
direction, it improved the pattern.
Vertical antennas usually work better with radials equal in length to the
tower height. A quarter wavelength at the operating frequency is also
adequate in the case of a tall tower, not that it applies for most of us.
Next time I'm at Home Depot or Lowe's, I'll grab some screen or chicken
wire.
Craig Healy
Providence, RI
_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca
Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers
For more information: http://www.ircaonline.org
To Post a message: irca@xxxxxxxxxxxxxxxx