Vee Beam with 5-Wavelength Legs
Free Space
24.94 MHz
2 wires, feet
40  0 0 0  185.44 -74.92 0  #12
40  0 0 0  185.44  74.92 0  #12
1 source
40 1000 0
0 loads

Note the nonzero F/B.  MN correctly accounts for energy lost by radiation along
the wires.  This prevents a perfectly bidirectional pattern.