Re: [TowerTalk] How high is enough

[K8RI <K8RI-on-TowerTalk@tm.net>]

On 7/30/2013 10:57 PM, Jim Brown wrote:
> On 7/30/2013 7:46 PM, Jim in Waco wb5oxq wrote:
> > When choosing a height for a beam is 1/4 wave above ground at the
> > lowest frequency enough?  1/2 wave?  I see Force 12 rating the gain on
> > their beams at 74'1".
> The best answers to your question are in the ARRL Antenna Book. It's a
> real bargain, especially because it includes a CD with a starter version
> of NEC, a nice program that computes loss in transmission lines, a Yagi
> modeling program, and HFTA, which helps answer the question you just asked.
Some time ago, there was an article in QST addressing antenna height Vs 
distance, band, and band conditions.  It showed sarcastically how often 
an antenna for a specific band at various heights would be best for 
specific distances. It was a very well done study and "I think" with in 
the last year or two.
73

Roger (K8RI)
> 73, Jim K9YC
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