[TowerTalk] How high is enough

[Steve Hunt]

Something similar here - it formed the basis of my QST article "What's 
the best height for my beam?" in the May 2009 edition.
http://www.karinya.net/g3txq/hexbeam/height_2/

Look in particular at the chart in Section 2 - it shows how relative 
performance changes vs height with path and band. Clearly, you can't 
talk about an optimum height for a multiband antenna without defining 
what you mean by optimum.

A further important consideration is whether a particular height puts a 
deep null in the elevation pattern at an angle where you may sometimes 
be trying to work. It might be worth sacrificing a dB or two at some 
angles in order to avoid a 20dB null at others.

Steve G3TXQ





On 31/07/2013 05:36, K8RI wrote:
>
> 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.
>