This is the 4NEC2 antenna bend model for: Standard Lateral L-Dipoles
To use this model:
Below. Highlight and copy (Ctrl C) the program control codes (CM,
CE, SY,etc).
Open Windows Wordpad and copy (Ctrl V) the control codes into Wordpad.
Go to "File, Save as..." and name your new antenna model.
In Windows Explorer, right-click on your new model and "Rename" the file to end as ".nec".
Open your new model to optimize length of the variable arm (arm=)
at the angle (ang=) of interest.
4NEC2 is an NEC2, NEC4, Windows based antenna modeler and optimizer by
Arie Voors.
It is available free of charge at: www.qsl.net/4nec2/
CM Standardized Lateral L-dipole
model for comparison studies
CM #14 AWG, 1/2 wavelength feedpoint over ground at 28.4
mc.
CM Lateral Bend, Center 2-feed
CM Fixed Horizontal Arm, Variable angle lateral arm.
CM Dick Reid, KK4OBI, 2016
CM
CE
SY hor=2.568238 'Fixed Horizontal arm length -
meters
SY ang=180
'Angle of Variable arm. 90=no bend, 0=East, 180=West
SY arm=2.682505 'Optimized length of
variable Arm - meters
SY x=arm*Sin(ang) 'Lateral position X
SY y=arm*Cos(ang) 'Lateral position Y
SY hgh=5.282
'150/28.4=5.282=1/2wl feedpoint height - meters
GW 2 25
-hor 0 hgh
0 0 hgh
#14 'Fixed horizontal arm
GW 3 25
0 0 hgh
x y hgh
#14 'Variable angle lateral arm
GE -1
GN 2 0
0 0 14 6.e-3
EK
EX 0 2
25 0 1
0 0
EX 0 3
1 0 1
0 0
FR 0 0
0 0 28.4 0
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