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Ch6 3-El FD-Yagi - OPTimized
Ch6 3-Element Folded Dipole Yagi analyzed using 4nec2, after determining
"best" Dimensions using nikiml's Python Optimization Scripts.

Center Freq = 85 MHz (1/2-WL = 69.43-inches).

L1=72.37948, L2=65.54579, L3=59.54659 = Element Lengths
D2=24.109, D3=19.19 = Element Spacings
Relem=0.1875 = Passive Element Radius (3/8-in O.D.)
RACT=0.1875 = Active Element Radius (3/8-in O.D.)
FW=3.0 = Separation between Long Folded Dipole Elements

Ch6 (82-88 MHz) Raw Gain = 6.9 to 7.6 dBi, F/B & F/R Min. under 17.4 dB and SWR (300-ohms) under 2.4.
Date(s): 6 May 2018. Album by holl_ands. 1 - 12 of 12 Total. 3374 Visits.
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Ch6 3-El FD-Yagi - OPT
3D View


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Ch6 3-El FD-Yagi - OPT
Front View
[1 large square = 5 inches]


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Ch6 3-El FD-Yagi - OPT
Front View
[1 large square = 5 inches]


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Ch6 3-El FD-Yagi - OPT
Ch6 (82-88 MHz) Raw Gain = 6.9 to 7.6 dBi
Ch6 F/B & F/R Min. under 17.4 dB


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Ch6 3-El FD-Yagi - OPT
Ch6 (82-88 MHz) SWR (300-ohms) = 1.4 to 2.4


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Ch6 3-El FD-Yagi - OPT
Ch6 (82-88 MHz) Impedance


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Ch6 3-El FD-Yagi - OPT
Azimuthal Pattern at 82 MHz


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Ch6 3-El FD-Yagi - OPT
Azimuthal Pattern at 85 MHz


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Ch6 3-El FD-Yagi - OPT
Azimuthal Pattern at 88 MHz


Enlarge Microsoft Word Document 10
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Ch6 3-El FD-Yagi - OPT
4nec2 *.nec Text File incl. Dimensions


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Ch6 3-El FD-Yagi - OPT
EVAL Summary of Performance text File


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Ch6 3-El FD-Yagi - OPT
EVAL *.html Performance Summary


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