Pete:
From what I've read on Topband and TowerTalk over the years, a low Vee as
you're proposing is likely to be a cloud warmer. I had a Hygain 18AVT at this
QTH but it wasn't a worthwhile antenna. I had few radials (maybe 4) made from
copperweld which deteriorated within a year or two. I must admit that I did
not use NoAlOx or Scotchbrite when I assembled the components so that probably
worked against me.
However, I have shunt-fed my 64 foot Trylon tower with a Skyhawk atop it
and it works great, i.e., I work everything I can hear. This antenna provides
vertical radiation vs horizontal for the Vee's, but it also needs a radial
field. Mine consists of seven #18 insulated wires on the ground - five 120
feet long each and two 35 feet long. The tower also has a lightning ground
systems of three buried #2 bare copper solid wires totaling about 135 feet and
Cadwelded to 12 ground rods.
My tower also has a half-sloper wire for 80M hung off the side. I see no
interaction between the shunt feed and the wire so have at it.
73 de
Gene Smar AD3F
-----Original Message-----
From: Topband [mailto:topband-bounces@contesting.com] On Behalf Of N4ZR
Sent: Monday, March 26, 2018 9:41 PM
To: topband reflector <Topband@contesting.com>
Subject: Topband: Short inverted Ls
I'm about to put up a 50 foot rocket launcher, and am puzzling over ways to use
it to improve my low-band antenna situation. My options are:
1. Refurbish an old 18AVT-WB and ground-mount it with (for discussion)
8-16 buried radials.
2 Suspend inverted vees for 80 and 40 from the top of the rocket launcher
(right under the tribander).
3. Attempt shunt feed of the rocket launcher for 160 and maybe 80.
Suggestions and comments welcome.
--
73, Pete N4ZR
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