Perhaps not applicable to Doug's monster, but for AutoEZ users wishing to
experiment with LPDA models see the third bullet here:
http://ac6la.com/aecollection4.html
Two general-purpose models are available, one to design via the desired Tau and
Sigma and one to design via the desired number of elements and boom length.
With either one, just change a few variables and the model is recreated on the
fly. That way you can easily compare performance across a frequency range
using different parameter choices.
LPDAs are also discussed briefly at the third bullet here:
http://ac6la.com/aeautoseg.html
Dan, Ac6LA
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