[TowerTalk] 10 throu 20 beam traps or no traps

[K7LXC--- via TowerTalk]

>  In his book, "Array of Light," N6BT shows optimized  designs of 
2-element, 3-element, and 4-element MONOBAND Yagis. He put these  IDEAL 
gain figures in a table with the CLAIMED gains of a dozen or so  
competing products. In nearly all cases, the advertised gains were 2-3  
dB better than the best monoband beam. In other words, they claimed  
impossible gains. After the first edition of "Array of Light" was  
published, nearly all of those manufacturers revised their gain claimed  
downward by several dB.
 
    We called that "marketing gain". Now you know  why we did our 
on-the-air antenna comparison test so we could have REAL info to  make antenna buying 
decisions. 
 
Cheers,
Steve      K7LXC