The source for the 4NEC2 (copy and paste)
CM My antenna - Shortened Inverted Vee dual band dipole
CM YO5OUC - Nicolae Crisan
CM Dual band antenna
CM 3.7 MHz and 7.1 MHz
CM Lenght = 24 m
CM
CM
CM
CE
SY l1=10.9
SY l2=1.5 'distance from the end to the load L
SY alfa=60 'half of the tip angle
SY h=20 'distance from the ground
SY l3=0.3
SY l4=0.2
GW 1 11 -l3/2 0 h -l1*sin(alfa)-l3/2 0 h-l1*cos(alfa) 0.002
GW 2 11 l3/2 0 h l1*sin(alfa)+l3/2 0 h-l1*cos(alfa) 0.002
GW 3 1 -l3/2 0 h l3/2 0 h 0.002
GW 4 1 -l1*sin(alfa)-l3/2 0 h-l1*cos(alfa) -l1*sin(alfa)-l3/2-l4*sin(alfa) 0 h-l1*cos(alfa)-l4*cos(alfa) 0.002
GW 5 1 l1*sin(alfa)+l3/2 0 h-l1*cos(alfa) l1*sin(alfa)+l3/2+l4*sin(alfa) 0 h-l1*cos(alfa)-l4*cos(alfa) 0.002
GW 6 3 -l1*sin(alfa)-l3/2-l4*sin(alfa) 0 h-l1*cos(alfa)-l4*cos(alfa) -l1*sin(alfa)-l3/2-l4*sin(alfa)-l2*sin(alfa) 0 h-l1*cos(alfa)-l4*cos(alfa)-l2*cos(alfa) 0.002
GW 7 3 l1*sin(alfa)+l3/2+l4*sin(alfa) 0 h-l1*cos(alfa)-l4*cos(alfa) l1*sin(alfa)+l3/2+l4*sin(alfa)+l2*sin(alfa) 0 h-l1*cos(alfa)-l4*cos(alfa)-l2*cos(alfa) 0.002
GE -1
LD 0 4 1 1 6 100e-6 0
LD 0 5 1 1 6 100e-6 0
GN 2 0 0 0 3 0.0001
EK
EX 0 3 1 0 1 0 0
FR 0 0 0 0 3.7 0
EN