[TowerTalk] Radials vs vertical height

[Jim Brown]

On Mon, 02 Apr 2007 20:42:17 -0700, Jim Lux wrote:

>A more accurate statement would be that the performance starts to be 
>determined more by the far field ground properties, which, with a 
>vertically polarized antenna, are pretty important to overall 
>performance.

Yes. It is VERY well known (that is, long ago proven science) that 
radials affect the EFFICIENCY of a vertical, while the ground in the far 
field determines the vertical radiation pattern, especially the strength 
of the low angle radiation. High conductivity => good low angle field 
strength, poor conductivity => poor low angle field strength. Again, the 
ARRL Antenna Book and ON4UN's book are very good on this topic. 

Jim K9YC