---- Log_Spiral_f_lo_17.900.ant ---- Oct 18, 2020 07:02:39
Spiral Antenna, Iteration f_lo = 17.9
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 223
 
Freq: 18.068 MHz
Wire/Structure Loss: 1.16% 
Source  Zr/Zi: 769.5, +j1000.7 ohms
 SWR:  3.15:1
Maxgain: 5.43 dBi at 0 Azim
         5.43 dBi at 18.4 Elev
F/R: 3.3 dB dB (F/B: 0.01 dB ;0.01 dB at 162 El)
Total Loss: 0.05 dB (Efficiency: 98.8%)

