---- Log_Spiral_f_lo_17.900.ant ---- Oct 18, 2020 07:07:16
Spiral Antenna, Iteration f_lo = 17.9
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 347
 
Freq: 28 MHz
Wire/Structure Loss: 1.14% 
Source  Zr/Zi: 1018.9, +j658.7 ohms
 SWR:  1.98:1
Maxgain: 9.52 dBi at 180 Azim
         9.52 dBi at 13.7 Elev
F/R: 4.86 dB dB (F/B: 0.01 dB ;0.01 dB at 166 El)
Total Loss: 0.05 dB (Efficiency: 98.9%)

