2 Element Yagi Optimized for Maximum Gain
Free Space
24.94 MHz
2 wires, inches
20  0  0  0     0  229.576  0   2
20  52 0  0     52  218.5     0   2
1 source
10,224,0
0 loads

This antenna offers just about the maximum gain available from 2 elements.  A
bit more gain is available at closer spacings, but the input Z becomes very
low, resistive losses increase, the bandpass narrows, and the tuning becomes
more critical.