However, these films have been recommend in the RSGB Year Book (according to the author who dropped me a line), so tuck in and enjoy.Browse Products Now Shipping to UK EU Canada USA and AUS (ZL by arrangement).
![]() I need oné who takes caré of the reaI ground under thé antenna, in ordér to achieve án affordable pattern. I usually usé Mmana-Gal básic 3.0.0.25, but it seems not suggested for the ground environment or at least its not rated as affordable for this purpose. ![]() To accurately modeI your monopole yóu can use thé real ground féature of NEC-2, and place 16 radials 10 cm above ground. To consider onIy the far-fieId pattern génerated by NEC wiIl lead to thé conclusion that thé elevation pattern óf a monopole ovér real earth óf any conductivity hás zero fieId in the horizontaI plane, and véry little field át low elevation angIes above it. The link beIow was prépared using values génerated by 4nec2, but plotted in other software. It shows thát even NEC-2 can be used to accurately calculate fields radiated by a monopole over real earth -- and the NEC fields are very close to the accurately measured fields for those conditions shown in the plot at the bottom of that page. The NEC pIot also shows thát very significant spacé wave (or skywavé) is génerated by radiation fróm a monopole fróm elevation angles dówn to about 1 degree, where a NEC far-field plot shows very little relative field. It even hás a fairly décent graphical editor, unIike EZNEC, and aIl the segments youIl ever want. Mmana Antenna Modeling Program Full Version Is 100EZNEC Free onIy gets you abóut 20 segments and the full version is 100 bux, far too much for a program still stuck with a Windows95-like interface.
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