[TowerTalk] Re: TH7 Traps

[Jim Lux]

At 10:37 AM 9/12/2003 -0400, Rex Lint wrote:
>john,
>
>I don't follow you.
>
>"One cannot dispute mathematics. Gain is a product
>of Boom Length."
>
>The boom length of a TH7 is 24 feet. The boom length of a C-31XR is 31 feet.
>Therefore, the C-31XR is the better performer according to your mathematics,
>isn't it?
>
>Rex
>K1HI

A more rigorous statement (fully defensible as laws of physics) might be:

The maximum achievable gain (not directivity) is a function of physical 
size, and all other factors being equal, larger physical size means larger 
gain.


However, such a statement isn't worth much, other than as a general, 
"there's no substitute for height and size" kind of argument..

John's original statement would be better stated as "In general, longer 
booms allow designs with more gain, without sacrificing other performance 
parameters."

Jim, W6RMK