[TowerTalk] 6-meter antenna height

[Roger (K8RI) on TT]

FD operation got me to thinking about this.

On HF (depending on band conditions) there is a statistically preferred 
height for the distance to be worked.

On VHF particularly 6-meters where long haul is Sporadic E, Tropo, 
occasionally F, or Aurora.

Local work is usually the higher the better. I've normally had the 7L 
C3i (boom just a few inches short of 30 feet) at 115 feet and excellent 
results for single and double hop Sporadic E as well a F and Au.

Keeping in mind that the ideal height for HF is statistically derived, 
where is the point (frequency) where we should typically be switching 
over from the way we figure HF antenna height to the higher the better?  
The FD station had their 6-meter antenna height calculated the same way 
we usually figure HF antenna height, meaning, I could about jump high 
enough to touch the antenna. That is, if I could still jump.  They were 
shooting through the trees.

A typical 6-meter antenna would have a "bunch" of lobes between the 
horizon and vertical

-- 

73

Roger (K8RI)


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