topload.nec

zip contains tool for Antenna Modelling with examples

CM Top Loaded vertical
CE
SY freq=1.8
sy len=4
sy hgh=30
SY ind=62uH, Q=100
SY earth=20				' Earth loss resistance
SY res= (ind * 2 * 3.14 * freq*1e6) /Q	' Coil loss resistance

GW	1	int(hgh)	0	0	0	0	0	hgh	1e-3
GW	11	int(len)	0	0	hgh	len	0	hgh	1e-3
GW	12	int(len)	0	0	hgh	-len	0	hgh	1e-3
GW	13	int(len)	0	0	hgh	0	len	hgh	1e-3
GW	14	int(len)	0	0	hgh	0	-len	hgh	1e-3
GW	15	8	0	0	hgh	0	0	hgh+8	1e-3
GE	1
LD	5	0	0	0	58000000
LD	0	1	int(hgh)	0	res	ind				
LD	0	1	1	1	earth				


GN	3	0	0	0	13	0.005
EK
EX	0	1	1	0	1	0		
FR	0	0	0	0	freq	0
EN