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Date: Sun, 24 May 2009 20:16:47 +0100
From: Richard Newstead <g3cwi@btconnect.com>
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Subject: LF: Modelling aerials
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Dear MFers

I am trying to model various aerial configurations for 500kHz using NEC. 
I have set the antenna 0.5m above ground as NEC2 does not like radials 
on the ground. I have used "real ground". Has anyone compared the 
calculated Source impedances to real-world measurements at 500kHz? I am 
trying to understand the likely range of impedances that I need to match 
over and hence the ATU types I need to employ and the components needed.

Any modelling tips will be welcome.

73

Richard
G3CWI