Jake –
There are many schools of thought on this subject so my email was a quick query
to see what came up.
For now I have the Big IR in a temp spot while we wait for the heat to break
and tower to be completed so I wanted something for the low bands.
Have a plate so will cut four for each band resonate near where I want to
operate at and leave it at that.
Have a 42’ vertical which I changed into an end fed L..works very well on 160
up to 20m. Attached dipole at 35’ mark, extended 200’ of wire out.
Thanks for all the suggestions guys.
73-
W1JCW
John
From: jcjacobsen@q.com [mailto:jcjacobsen@q.com]
Sent: Wednesday, August 22, 2018 12:28 PM
To: towertalk <towertalk@contesting.com>; w1jcw@hotmail.com
Subject: re: Number of radials
John is looking for advice for radials under vertical for 80 meters.
John, get yourself a copy of the Antenna book. There is a chart showing number
of radials, vs how efficient, vs amount of wire available.
If I remember correctly, if you only have room/enough wire for a few, then
length isn't as important. I always went with, as many as I could, as long as I
could make 'em. Right now I have limited room, so I have 32 radials, aprox 30'
long under 42' vertical. Works very well, at least I think so.
If they are buried, they don't have to be resonant ie no need for 1/4
wavelength long.
Have fun with the project.
73
K9WN Jake
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