[BC] FCC Info On Directional Arrays

[Tom Spencer]

"Augmentations" are where the pattern doesn't QUITE match the 
theoretical pattern for the antenna system

There's the theoretical pattern, which you get by doing the vector 
addition on the array;

The "standard pattern", which is derived from the theoretical array... 
IIRC, it takes the M3 ground data into account and normalizes the field 
to a standard - I believe 1 kw - strength.

Then, there's what's actually radiating.

The difference between what you measured during the final proof, and 
what your calculations show SHOULD be getting radiated are the 
augmentations.

Any number of causes... extra structures that you've de-tuned (but can 
still affect the pattern), variations in the actual ground conductivity, 
and so forth.  Cowboy could probably expound further with a small 
treatise of a few gigabytes' worth.... <grin>

Tom Dimeo wrote:

snip 1
> Now for another, probably stupid question.  What does 
> Augmentations: 6 mean in this statement?
> "Pattern Type: Augmented
> Towers: 3 Augmentations: 6"

snip 2

-- 
Tom Spencer
PG-18-25453 (nee' P1-18-48841)
http://radioxtz.com/