The 43' Vertical

I have just started learning how to use W7EL's Eznec antenna modelling program and decided to model the "magical" 43' vertical. Here is the SWR curve for the vertical modeled over a perfect ground.



The SWR at various points is:
1.7 MHz: SWR > 100, Z=2.3-j673 = 674 at -90 deg  (Z:50 = 13:1)
3.7 MHz: SWR=66.8, Z=12.65-j199 = 189 at -86 deg (Z:50 = 4:1)
5.7 MHz: SWR=1.68, Z=40-j21 = 46 at -28 deg
7.2 MHz: SWR=9.16, Z=94+j180 = 203 at 62 deg (Z:50 = 4:1)
10.2 MHz: SWR=22.3, Z=894+j441 = 998 at 26 deg (Z:50 = 20:1)
14.2 MHz: SWR=19.8 Z=80-j266 = 278 at -73 deg (Z:50 = 5:1)
16.7 MHz: SWR=1.25, Z=51-j11 = 52 at -12 deg
18.2 MHz: SWR=5.13, Z=91+j116 = 148 at 52 deg (Z:50 = 3:1)
21.2 MHz: SWR=13.9, Z=486+j318 = 581 at 33 deg (Z:50 = 11:1)
24.2 MHz: SWR=16.1, Z=328-j394 = 513 at -50 deg (Z:50 = 10:1)
28.2 MHz: SWR=1.24, Z=62-j0.4 = 62 at -0.4 deg (Z:50 = 1:1)

Here are a couple of elevation patterns:

3.5 MHz:


28 MHz:


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