Actually, a DENSE radial solution in the near field DOES return dividends, even over poor ground. The savings has to do with field cancellation at the ground, caused by uniform radials and the vertical radiator presenting equal and opposite fields to the dirt. This cancellation zone then "returns" the energy otherwise destined for worm-warming to the system to be added elsewhere, including proportionally to the sky wave.
73, Guy. On Tue, Dec 21, 2010 at 1:33 AM, David Gilbert <[email protected]> wrote: > > > I suspect that Don was referring to the fact that poor ground > conductivity affected his low angle performance, and that is absolutely > true. There isn't a thing he or anyone else can do to change the far > field effects of poor ground. He can add lots of radials, buried or > otherwise, to improve feedpoint losses, but none of that has any effect > whatsoever on the far field pattern. > > 73, > Dave Ab7E > > > > On 12/20/2010 9:54 PM, Jan Erik Holm wrote: >> I hope people doesn´t learn from this statement. >> IMO this is as far from logic one can get. >> /Jim >> ------ >> On 2010-12-21 02:27, Don Wilhelm wrote: >>> The ground conductivity in my area is not the greatest, so I have >>> accepted the logical consequences of that fact. >>> >>> 73, >>> Don W3FPR >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
