op201510.nec

zip contains tool for Antenna Modelling with examples

CM dp: 14/21/28 open sleeve, meters
CM check freq: 21.2, 28.5 MHz
CM L. B. Cebik, W4RNL      
CE
GW	1	41	-5.1206	0		10.668	5.12064	0		10.668	0.0127
GW	2	41	-3.3436	0.21336	10.668	3.34366	0.21336	10.668	0.0127
GW	3	41	-2.5075	-0.1889	10.668	2.50759	-0.1889	10.668	0.0127
GE	0
LD	5	0	0	0	25000000
EX	0	1	21	0	1	0
'GN	-1
GN	2	0	0	0	13	.005
FR	0	1	0	0	14.175	0
EN