[TowerTalk] EZNEC- needs improvement

[RLVZ at aol.com]

Hi Jim,
 
Again- I am not trying to create trouble here but see computer modeling  
software improved.
 
Yes- do have poor performance with verticals, but you mentioned that you  
live in a heavily wooded area.  Verticals work poorly in heavily  wooded areas so 
I don't believe that's a fair environment to compare verticals  to 
horizontals.
 
Our club once operated Field Day with verticals on 40-10m. in a  heavy wooded 
area.  The shade was wonderful for keeping us cool but  the verticals worked 
terrible even on distances over 1,000 miles.   Computing modeling should try 
to take the environment more into effect... I  wouldn't be surprised if a 
heavily wooded area attentuated a verticals radiation  by as much as 20dB.
 
73,
Dick- K9OM
 
 
In a message dated 4/5/2009 3:45:04 PM Eastern Daylight Time,  
jim at audiosystemsgroup.com writes:

My  comments comparing verticals and dipoles are on the basis of BOTH NEC 
modeling  
and on the air comparisons during contests on a LOT of signals. I have yet  
to find 
any significant disagreement between NEC models and what happens  on the air 
with 
MY antennas. 

73,

Jim Brown  K9YC





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