After posting a brief study of 5 20-meter long (45-55') Yagis, WB0DGF
contributed the HG205xlb to my collection. In adding it to the note, I
redid all the runs so that now the graphics record both NEC-2 (corrected)
and NEC-4 results for all 6 antennas. I also added some further modeling
notes. The former 53' Yagi is now 55' and derived from a design by K4SB
(used with permission).
The point of the exercise was not to find which was the better beam--for
all are good in their own right--but to see what the differences in design
would do to models of them when comparing NEC-2 and NEC-4 results.
The update has about 35 graphics--now with color graphs to distinguish the
NEC-2 from NEC-4 lines--so downloading may be slow.
Hope the update proves useful to someone.
-73-
LB, W4RNL
L. B. Cebik, W4RNL /\ /\ * / / / (Off)(423) 974-7215
1434 High Mesa Drive / \/ \/\ ----/\--- (Hm) (423) 938-6335
Knoxville, Tennessee /\ \ \ \ / / || / (FAX)(423) 974-3509
37938-4443 USA / \ \ \ \ || cebik@utk.edu
URL: http://web.utk.edu/~cebik/radio.html
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