Topband: info on radials repartition...

[W8AV at aol.com]

Adding additional radials under one of the towers of your 80 meter array  
should not have any adverse performance effects on your 80 meter array.  If  
anything, it should improve the efficiency of the 80 meter array a bit.  It  may 
effect the match of the 80 meter arry array a small amount at  the feed point 
of the array, but it should not be a serious  problem.
 
If you add additional radials to both towers of the array, you will see the  
same efficiency improvement and slight change in the match.  However, you  can 
probably get away without doing the second tower.
 
At W8AV, I have a W8AV 80 meter triangle array suspended using ropes  
attached to my 160 meter series fed base insulated vertical.  I merely put  the 80 
meter radials on top of the 160 radials and bonded them together where  they 
intersected.  This essentially gives me a wire mesh around both the  160 and 80 
meter antennas.  Although I had to detune the 160 meter tower  for 80 meters to 
keep it from screwing up the 80 meter pattern, the change on  the match on 
the 160 antenna was very small.
 
73...........de Goose, W8AV



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