This is the 4NEC2 antenna bend model for: Standard Vertical 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 create new name for your Vertical
Dipole
model".
In Windows Explorer, right-click on your new model and "Rename" the file to end as ".nec".
Open your new model to optimize the variable arm length (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 vertical dipole
model for comparison studies
CM #14 AWG. 1/2 wavelength feedpoint over ground at 28.4
mc.
CM Fixed Vertical Arm with Adjustable angle arm
CM Dick Reid, KK4OBI, 2016
CE
SY hgh=5.282
'150/28.4=5.282m =1/2 wl feedpoint height
SY vert=2.442543 'Fixed vertical arm length - meters
SY ang=0
'Angle of Variable arm. 90=horizontal
SY arm=2.661808 'Optimized variable arm
length - meters
SY x=arm*Sin(ang) 'X-value of variable arm
SY z=arm*Cos(ang) 'Z-value of variable arm
GW 1 25
0 0 hgh+vert
0 0 hgh
#14 'Fixed vertical arm
GW 2 25
0 0 hgh
x 0 hgh-z
#14 'Variable angle arm
GE 1
GN 2 0
0 0 4 0.003
EK
EX 0 1
25 0 1
0 0
EX 0 2
1 0 1
0 0
FR 0 0
0 0 28.4 0
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