[BC] Scott -Skirt feeds.....

[Cowboy]

On Sunday 21 February 2010 06:59 pm, Dave Dybas wrote:
>  Hi Scott,
>   
>  A typical skirt consists of 3 or more wire drops.  Symmetry about the tower 
>  is important for drop wires, so I'm thinking that using only 2 wires on a 3 
>  sided (or even a 4 sided)  tower will result in some pattern distortion. 
>  You may end up with an egg-shaped rather than a circular pattern.    

 One drop wire will work OK if done properly, but current distribution
 between the large conductor ( the tower ) and the smaller one ( the
 drop wire ) can get tricky.
 A single drop wire "skirt" would have less pattern distortion than
 a slant wire, if done right.
 Remember, the skirt is merely a feed method. NOT a radiator. ( usually )

 Two drops are very typical of detuning, and generally arranged about
 the structure so that the intercepted field is balanced best, or ( in the
 case of power poles ) to avoid other appurtenances.

-- 
Cowboy