[CQ-Contest] 4O3A Station rebuild

[Jim Brown]

On 4/23/2018 4:15 PM, Ed Sawyer wrote:
> HFTA is really essential in hilly terrain.

Contesters out here in NCCC territory are strong believers in HFTA. 
N6BV, the program author, advises running it for in five degrees 
increments of azimuth in important directions and at many increments of 
height. I did that when planning my antenna farm, and have found good 
correlation with how the antennas work.

It's important to understand that the equations apply only to 
horizontally polarized antennas.  Vertical antennas are also strongly 
dependent on terrain, but I don't know of any comparable software for 
modeling it because the effect of ground and terrain are different. N6BT 
has done some excellent experimental work on this.

73, Jim K9YC