"KL7JR Sloping Vertical Delta Loop 80-6 Meters"
Imagine 9 bands on one wire antenna!
I like loops. I'm amazed at how a "shorted-out antenna" can even work at all more or less so well! My favorite vertical loop for portable and fixed use is described below. (Ref. 1).
I had great results with it from Alaska and the Yukon
on my portable outings! It is extremely easy to build and only requires
136 feet of wire and a tuner. No balun or choke coils necessary.
1005 divided by 7.2 MHz =140 feet. KI8GX, (Ref 1. below), found that 136 feet long worked for him, so that is the magic number I will also use to maintain 1 WL on 40 meters which would also allow 80 meter use. So I divided that 136 feet by 3 and rounded the sides to about 45 feet per side. You can use more or less to suit your tuner.
Here's how the loop stacks up:
6M. 7 WL
10M. 4 WL
12M. 3 1/2 WL
15M. 3 WL
17M. 2 1/2 WL
20M. 2 WL
30M. 1 1/2 WL
40M. 1 WL
Ref. 1 "A One-Masted Sloop" by KI8GX (ARRL MEMBERS ONLY You must log in!)
ANT: 150 FT Long Vertical Sloping Loop (somewhat square), 1WL on 40m.
Orientation: East/West with top feed @ 20 FT above motor home roof.
Apex @ 30ft and legs @10ft.
All stations worked on 14Mhz except the KL7'S were on 7Mhz.
Worked about 30 states as well....band conditions in and out all day!
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