Topband: OT - Bonding Radials at Intersections

[donovanf at erols.com]

Hi Bob, 


While bonding the radials is desirable, its not essential. But you 
must NOT cross the radials over each other. 


The radials of a multi-element vertical array are usually bonded to 
a common wire bisecting the verticals where they would otherwise 
cross over each other. See this figure by K6LA: 


https://ac6la.com/adhoc/radials3.png 


I modelled phased vertical arrays where the radials are laid out exactly 
as shown by K6LA but without the bisecting wire. In this configuration 
the radials that would have been bonded to the bisecting wire are instead 
simply continued to the bottom of the adjacent vertical. The model shows 
absolutely no difference in the performance of a multi-element vertical 
array with -- or without -- the bisecting wire(s). I built my 160 meter 
4-square array in this fashion -- without the bisecting wires -- and its 
performance is excellent. 


73 
Frank 
W3LPL 





----- Original Message -----

From: "Robert L. Chortek" <Robert.Chortek at berliner.com> 
To: "TopBand List" <topband at contesting.com> 
Sent: Friday, November 6, 2020 2:05:43 AM 
Subject: Topband: OT - Bonding Radials at Intersections 

I just finished installing a two element vertical array on 40M. The instructions say to bond the radials from one vertical where they intersect with a radial for the other vertical. 

My question is, is this really necessary and what effect would doing so (or not) have on the performance of the Array? 

Much appreciated. 

73, 

Bob AA6VB 

Bob 
Robert L. Chortek 
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