---- Log_Spiral_f_lo_13.500.ant ---- Oct 18, 2020 06:59:31
Spiral Antenna, Iteration f_lo = 13.5
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 251
 
Freq: 14 MHz
Wire/Structure Loss: 1.09% 
Source  Zr/Zi: 2326.6, +j55.6 ohms
 SWR:  2.59:1
Maxgain: 7.08 dBi at 182 Azim
         7.08 dBi at 26.7 Elev
F/R: 3.49 dB dB (F/B: 0.03 dB ;0.03 dB at 153 El)
Total Loss: 0.05 dB (Efficiency: 98.9%)

---- Log_Spiral_f_lo_13.700.ant ---- Oct 18, 2020 06:59:34
Spiral Antenna, Iteration f_lo = 13.7
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 239
 
Freq: 14 MHz
Wire/Structure Loss: 1.41% 
Source  Zr/Zi: 1599.3, +j1202.8 ohms
 SWR:  3.01:1
Maxgain: 7.74 dBi at 0 Azim
         7.74 dBi at 25.8 Elev
F/R: 3.74 dB dB (F/B: 0 dB ;0 dB at 154 El)
Total Loss: 0.06 dB (Efficiency: 98.6%)

---- Log_Spiral_f_lo_13.900.ant ---- Oct 18, 2020 06:59:38
Spiral Antenna, Iteration f_lo = 13.9
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 239
 
Freq: 14 MHz
Wire/Structure Loss: 1.41% 
Source  Zr/Zi: 1599.3, +j1202.8 ohms
 SWR:  3.01:1
Maxgain: 7.74 dBi at 0 Azim
         7.74 dBi at 25.8 Elev
F/R: 3.74 dB dB (F/B: 0 dB ;0 dB at 154 El)
Total Loss: 0.06 dB (Efficiency: 98.6%)

---- Log_Spiral_f_lo_14.100.ant ---- Oct 18, 2020 06:59:41
Spiral Antenna, Iteration f_lo = 14.1
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 227
 
Freq: 14 MHz
Wire/Structure Loss: 1.35% 
Source  Zr/Zi: 766.7, +j1068.3 ohms
 SWR:  3.38:1
Maxgain: 7.48 dBi at 0 Azim
         7.48 dBi at 26.7 Elev
F/R: 3.55 dB dB (F/B: 0.01 dB ;0.01 dB at 153 El)
Total Loss: 0.06 dB (Efficiency: 98.7%)

---- Log_Spiral_f_lo_14.300.ant ---- Oct 18, 2020 06:59:44
Spiral Antenna, Iteration f_lo = 14.3
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 227
 
Freq: 14 MHz
Wire/Structure Loss: 1.35% 
Source  Zr/Zi: 766.7, +j1068.3 ohms
 SWR:  3.38:1
Maxgain: 7.48 dBi at 0 Azim
         7.48 dBi at 26.7 Elev
F/R: 3.55 dB dB (F/B: 0.01 dB ;0.01 dB at 153 El)
Total Loss: 0.06 dB (Efficiency: 98.7%)

---- Log_Spiral_f_lo_14.500.ant ---- Oct 18, 2020 06:59:47
Spiral Antenna, Iteration f_lo = 14.5
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 227
 
Freq: 14 MHz
Wire/Structure Loss: 1.35% 
Source  Zr/Zi: 766.7, +j1068.3 ohms
 SWR:  3.38:1
Maxgain: 7.48 dBi at 0 Azim
         7.48 dBi at 26.7 Elev
F/R: 3.55 dB dB (F/B: 0.01 dB ;0.01 dB at 153 El)
Total Loss: 0.06 dB (Efficiency: 98.7%)

---- Log_Spiral_f_lo_14.700.ant ---- Oct 18, 2020 06:59:50
Spiral Antenna, Iteration f_lo = 14.7
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 215
 
Freq: 14 MHz
Wire/Structure Loss: 1.47% 
Source  Zr/Zi: 419.7, +j741.2 ohms
 SWR:  3.8:1
Maxgain: 6.92 dBi at 2 Azim
         6.92 dBi at 26.2 Elev
F/R: 3.48 dB dB (F/B: 0.03 dB ;0.03 dB at 154 El)
Total Loss: 0.06 dB (Efficiency: 98.5%)

---- Log_Spiral_f_lo_14.900.ant ---- Oct 18, 2020 06:59:53
Spiral Antenna, Iteration f_lo = 14.9
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 215
 
Freq: 14 MHz
Wire/Structure Loss: 1.47% 
Source  Zr/Zi: 419.7, +j741.2 ohms
 SWR:  3.8:1
Maxgain: 6.92 dBi at 2 Azim
         6.92 dBi at 26.2 Elev
F/R: 3.48 dB dB (F/B: 0.03 dB ;0.03 dB at 154 El)
Total Loss: 0.06 dB (Efficiency: 98.5%)

---- Log_Spiral_f_lo_15.100.ant ---- Oct 18, 2020 06:59:57
Spiral Antenna, Iteration f_lo = 15.1
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 215
 
Freq: 14 MHz
Wire/Structure Loss: 1.47% 
Source  Zr/Zi: 419.7, +j741.2 ohms
 SWR:  3.8:1
Maxgain: 6.92 dBi at 2 Azim
         6.92 dBi at 26.2 Elev
F/R: 3.48 dB dB (F/B: 0.03 dB ;0.03 dB at 154 El)
Total Loss: 0.06 dB (Efficiency: 98.5%)

---- Log_Spiral_f_lo_15.300.ant ---- Oct 18, 2020 06:59:59
Spiral Antenna, Iteration f_lo = 15.3
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 203
 
Freq: 14 MHz
Wire/Structure Loss: 1.56% 
Source  Zr/Zi: 273.8, +j455.9 ohms
 SWR:  4.2:1
Maxgain: 5.8 dBi at 4 Azim
         5.8 dBi at 24.9 Elev
F/R: 3.32 dB dB (F/B: 0.06 dB ;0.06 dB at 155 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_15.500.ant ---- Oct 18, 2020 07:00:02
Spiral Antenna, Iteration f_lo = 15.5
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 203
 
Freq: 14 MHz
Wire/Structure Loss: 1.56% 
Source  Zr/Zi: 273.8, +j455.9 ohms
 SWR:  4.2:1
Maxgain: 5.8 dBi at 4 Azim
         5.8 dBi at 24.9 Elev
F/R: 3.32 dB dB (F/B: 0.06 dB ;0.06 dB at 155 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_15.700.ant ---- Oct 18, 2020 07:00:05
Spiral Antenna, Iteration f_lo = 15.7
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 203
 
Freq: 14 MHz
Wire/Structure Loss: 1.56% 
Source  Zr/Zi: 273.8, +j455.9 ohms
 SWR:  4.2:1
Maxgain: 5.8 dBi at 4 Azim
         5.8 dBi at 24.9 Elev
F/R: 3.32 dB dB (F/B: 0.06 dB ;0.06 dB at 155 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_15.900.ant ---- Oct 18, 2020 07:00:07
Spiral Antenna, Iteration f_lo = 15.9
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 203
 
Freq: 14 MHz
Wire/Structure Loss: 1.56% 
Source  Zr/Zi: 273.8, +j455.9 ohms
 SWR:  4.2:1
Maxgain: 5.8 dBi at 4 Azim
         5.8 dBi at 24.9 Elev
F/R: 3.32 dB dB (F/B: 0.06 dB ;0.06 dB at 155 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_16.100.ant ---- Oct 18, 2020 07:00:10
Spiral Antenna, Iteration f_lo = 16.1
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 193
 
Freq: 14 MHz
Wire/Structure Loss: 1.6% 
Source  Zr/Zi: 209.3, +j211.1 ohms
 SWR:  4.55:1
Maxgain: 4.18 dBi at 5 Azim
         4.18 dBi at 21.6 Elev
F/R: 2.98 dB dB (F/B: 0.12 dB ;0.12 dB at 158 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_16.300.ant ---- Oct 18, 2020 07:00:12
Spiral Antenna, Iteration f_lo = 16.3
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 193
 
Freq: 14 MHz
Wire/Structure Loss: 1.6% 
Source  Zr/Zi: 209.3, +j211.1 ohms
 SWR:  4.55:1
Maxgain: 4.18 dBi at 5 Azim
         4.18 dBi at 21.6 Elev
F/R: 2.98 dB dB (F/B: 0.12 dB ;0.12 dB at 158 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_16.500.ant ---- Oct 18, 2020 07:00:16
Spiral Antenna, Iteration f_lo = 16.5
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 193
 
Freq: 14 MHz
Wire/Structure Loss: 1.6% 
Source  Zr/Zi: 209.3, +j211.1 ohms
 SWR:  4.55:1
Maxgain: 4.18 dBi at 5 Azim
         4.18 dBi at 21.6 Elev
F/R: 2.98 dB dB (F/B: 0.12 dB ;0.12 dB at 158 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_16.700.ant ---- Oct 18, 2020 07:00:17
Spiral Antenna, Iteration f_lo = 16.7
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 183
 
Freq: 14 MHz
Wire/Structure Loss: 1.6% 
Source  Zr/Zi: 184.6, -j17.1 ohms
 SWR:  4.88:1
Maxgain: 2.67 dBi at 4 Azim
         2.67 dBi at 16.8 Elev
F/R: 2.47 dB dB (F/B: 0.05 dB ;0.05 dB at 163 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_16.900.ant ---- Oct 18, 2020 07:00:19
Spiral Antenna, Iteration f_lo = 16.9
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 183
 
Freq: 14 MHz
Wire/Structure Loss: 1.6% 
Source  Zr/Zi: 184.6, -j17.1 ohms
 SWR:  4.88:1
Maxgain: 2.67 dBi at 4 Azim
         2.67 dBi at 16.8 Elev
F/R: 2.47 dB dB (F/B: 0.05 dB ;0.05 dB at 163 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_17.100.ant ---- Oct 18, 2020 07:00:22
Spiral Antenna, Iteration f_lo = 17.1
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 183
 
Freq: 14 MHz
Wire/Structure Loss: 1.6% 
Source  Zr/Zi: 184.6, -j17.1 ohms
 SWR:  4.88:1
Maxgain: 2.67 dBi at 4 Azim
         2.67 dBi at 16.8 Elev
F/R: 2.47 dB dB (F/B: 0.05 dB ;0.05 dB at 163 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_17.300.ant ---- Oct 18, 2020 07:00:25
Spiral Antenna, Iteration f_lo = 17.3
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 173
 
Freq: 14 MHz
Wire/Structure Loss: 1.57% 
Source  Zr/Zi: 186.3, -j252.6 ohms
 SWR:  5.23:1
Maxgain: 1.92 dBi at 183 Azim
         1.92 dBi at 14.5 Elev
F/R: 2.28 dB dB (F/B: 0.02 dB ;0.02 dB at 166 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_17.500.ant ---- Oct 18, 2020 07:00:29
Spiral Antenna, Iteration f_lo = 17.5
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 173
 
Freq: 14 MHz
Wire/Structure Loss: 1.57% 
Source  Zr/Zi: 186.3, -j252.6 ohms
 SWR:  5.23:1
Maxgain: 1.92 dBi at 183 Azim
         1.92 dBi at 14.5 Elev
F/R: 2.28 dB dB (F/B: 0.02 dB ;0.02 dB at 166 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_17.700.ant ---- Oct 18, 2020 07:00:31
Spiral Antenna, Iteration f_lo = 17.7
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 173
 
Freq: 14 MHz
Wire/Structure Loss: 1.57% 
Source  Zr/Zi: 186.3, -j252.6 ohms
 SWR:  5.23:1
Maxgain: 1.92 dBi at 183 Azim
         1.92 dBi at 14.5 Elev
F/R: 2.28 dB dB (F/B: 0.02 dB ;0.02 dB at 166 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

---- Log_Spiral_f_lo_17.900.ant ---- Oct 18, 2020 07:00:34
Spiral Antenna, Iteration f_lo = 17.9
 Sommerfeld-Norton Ground
Zone 1: Conduct=5 mS; Dielec=13
Nr Segments: 173
 
Freq: 14 MHz
Wire/Structure Loss: 1.57% 
Source  Zr/Zi: 186.3, -j252.6 ohms
 SWR:  5.23:1
Maxgain: 1.92 dBi at 183 Azim
         1.92 dBi at 14.5 Elev
F/R: 2.28 dB dB (F/B: 0.02 dB ;0.02 dB at 166 El)
Total Loss: 0.07 dB (Efficiency: 98.4%)

