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Old 11-12-2007, 11:28   #96
btrayfors
Senior Cruiser
 
Join Date: Jul 2006
Location: Chesapeake Region
Boat: 42' Bob Perry sloop, "Born Free"
Posts: 1,241
Now we're talkin'!

While the term, "directive gain" is recognized and useful, for me it doesn't precisely capture the "gain" derived from low angle takeoff over DX paths. Yagis, for example, exhibit "directive gain" in their horizontal pattern of radiation, but unless they're very high they don't realize the benefits of very low angle radiation.

I actually like Illusion's term, "apparent gain" better, since it encompasses both "directive gain" and "low angle gain".

Hope this discussion isn't going too far afield for most readers. Didn't mean to hijack the thread.

Bill
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