L. B. Cebik wrote:
>if anyone needs a modeling project, the development of
>realistic trees, shrubs, and other clutter common to ham yards would be
>useful in modeling ground or near-ground mounted verticals.
There is a related problem in the terrain analyser programs which
calculate the vertical radiation pattern based on terrain height
profiles. At higher frequencies (especially 28 and 50MHz) there must be
significant absorption and/or scattering by above-ground structures such
as buildings and trees that are often larger than a wavelength in size.
73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'
'In Practice' columnist for RadCom (RSGB)
FAQ on WWW: http://www.contesting.com/antennaware-faq.html
Administrative requests: antennaware-REQUEST@contesting.com