Topband: Low band antenna project questions

mstangelo at mstangelo at
Mon Mar 7 09:49:12 EST 2016


I have an inverted L similar to this setup and it does a decent job on 160 through 20 meters.

I put up an inverted L supported in trees because it fit he backyard layout. It is 5/16 long with a 50-55 foot vertical component.

I have 30 radials 70 feet long and 4 130 foot radials because this is what it into the yard. 

I only run 100 watts and use an MFJ-929 autotuner. 

I first started out with a 160 meter dipole at 50 feet and this inverted L performs much better.

I use one set of halyards for the supports over the trees and a second set of pulleys to support the L.  The L support lines have wood stump counterweights to allow for sway. I can easily lower the inverted L to prepare for a major storm.

Good luck with the installation.

Mike N2MS

----- Original Message -----
From: NC3Z Gary <nc3z at>
To: topband at
Sent: Mon, 07 Mar 2016 13:50:29 -0000 (UTC)
Subject: Topband: Low band antenna project questions

OK, still working on my permanent low band antenna and what I can fit 
for an effective antenna. The space I have is a recently cleared forest 
area. I had originally considered a full size loop but the best I could 
do is 50' high, although that would be a bit higher than my temporary 
dipole it is not much in the scheme of things. And I keep getting talked 
out of it.

I have walked the back many times with the tape measure and lines to see 
what I can fit, and what I can fit is a catenary line to support a T or 
L at 50' above ground. And after reading numerous articles the consensus 
was not to use radials much longer than the vertical height. I can 
easily fit 32 radials @ up to 75' each.

Now I want to be able to use this antenna for 80M as well as the non-DX 
portion of 160M. I can house a autotuner at the base (or make my own 
network but that would require control lines). My thinking is to make 
the 160M a 5/16 WL vs 1/4 to be more beneficial to 80M tuning without 
loosing anything on 160M.

With the above limitations is this an effective solution?
T or L ?
Am I missing anything?

Working on a RX antenna later.


Gary Mitchelson
NC3Z/4 Pamlico County, NC FM15

More information about the Topband mailing list