All, I've been searching for clarity and hard data on the effects of asymmetric radials on radiation patterns and efficiency of a vertical as I'm installing a 21m vertical for 80/160 and will have to
Cormac & other Topbanders, In the new June 2011 issue of QST, page 42 there is an article about a vertical with only two radials on one side of a vertical radiator, and the directivity one gets by ha
A careful reading of Rudy's piece does show that in a situation where you are, and must remain, totally compromised throughout a 180-degree sector, i.e., with zero radials, you can at least pick up f
Before I knew better, 30+ years ago, I had a 90' tower with 10-20 yagis shunt fed on 160. It was about 40' from the road on the NE thru SW side so many radials were very short and others ranged up to
Author: "Chortek, Robert L" <Robert.Chortek@berliner.com>
Date: Tue, 17 May 2011 09:17:45 -0700
Christman has written a number of excellent articles on this subject. Some of which are in the ARRL book "Vertical Antenna Classics". FWIW, I have been using a base loaded 60 foot vertical on my urba
YES. My 160M Tee vertical is about 20 ft from the building that houses my shack, so there are only very short radials in that direction, which happens to be toward JA and VK. I have about 60 much lon
I have the same experience .. a number of short radials and a few long ones, but only in a 180 degree pattern because of the lot lines and an ill tempered neighbor. I have several tower sections unus