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PARAMETER SWEEP OF "Zboom" AT 584 MHz: Run SWR Gain F/B F/R Ra Xa Eff. Zboom 30 1.7026 9.84 14.88 14.88 46.696 14.64 99.55 0.25 31 1.4176 8.91 31.38 29.59 95.701 21.32 99.73 0.5 32 1.7953 8.72 36.32 30.81 122.53 31.28 99.76 0.75 33 2.0064 8.69 33.16 30.75 136.36 37.39 99.77 1 34 2.1168 8.7 31.57 30.6 144.57 39.35 99.78 1.25 35 2.1715 8.73 30.87 30.58 150.18 38.3 99.78 1.5 36 2.1948 8.77 30.67 30.67 154.37 35.07 99.78 1.75 37 2.2012 8.79 30.76 30.76 157.69 30.24 99.78 2 38 2.2003 8.82 31.1 31.1 160.41 24.13 99.78 2.25 39 2.1993 8.83 31.63 31.63 162.71 16.98 99.78 2.5 310 2.2041 8.84 32.37 32.03 164.69 8.928 99.78 2.75 311 2.2195 8.84 33.32 31.98 166.46 0.078 99.78 3 312 2.2501 8.84 34.56 31.72 168.09 9.4965 99.78 3.25 313 2.2997 8.82 36.16 31.39 169.64 19.736 99.79 3.5 314 2.3718 8.8 38.32 31 171.17 30.6 99.79 3.75 315 2.4686 8.77 41.48 30.56 172.74 42.028 99.79 4 316 2.5921 8.74 46.97 30.08 174.37 53.985 99.79 4.25
CM UHF 7Element Wedge LPDA, OPT: TauSigma, 4nec2 by holl_ands, 26Apr2015 CM All elements 0.4in O.D. Aluminum. ALL IN INCHES. FOUR OPT. VARIABLES. CM Impedance = 75ohm. PYTHONSEG(15), NO Errors, Ignore FAT Wire Warnings, AGT=1.0. CM CMDOPT s(470,12,20) t(9,9) swrtarget=2.7 f2rtarget=20 f2btarget=20 CMDOPT targetfunction=(4*max_ml+8*max_gain_diff+4*max_f2r_diff+max_f2b_diff)/17 CMDOPT denp=50 r restart.log CMDOPT autosegmentation=15 charimpedance=75 numcores=7 CMDEVAL autosegmentation=0 charimpedance=75 numcores=7 CMDEVAL s(470,12,29) CE ' SOURCE Wire Radius, Adjust for AGT=1.0: UHF=0.1985 SY Rsrc=0.1985 ' SY Relem=0.2 ' Element Radius (Equivalent) SY Rboom=0.2 ' Boom Radius (Equivalent) SY Cond=2.0e7 ' Conductivity (Copper=3.0e7, Alum=2.0e7, StainlessSteel=1.67e7) SY C=11803 ' Speed of Light (inches/microsec) ' SY Flow=470 ' Below Lowest Frequency Design Factor: SY Below=1.0 ' Element Spacing Ratio = Tau = Li/Li+1 = Dij/Djk SY Tau=0.8653501' 0.8, 0.995 ' Relative Spacing Constant = Sigma = Dij/2*Lj SY Sigma=0.1719487' 0.1, 0.35 ' ' Angle of Boom Relative to Horizon at Apex: [About Half of Total Angle] SY HalfAngle=0.32781' 0, 25 ' CenterCenter Separation between Two Boom Lines at Apex: SY Zboom=0.5004509' 0.5, 2 SY Zb=Zboom/2 SY Zb=Zboom/2 ' ' Element HalfLengths, Longest to Shortest: SY Y1=0.25*C/(Below*Flow) ' 6.278in SY Y2=Tau*Y1 ' 5.433in SY Y3=Tau*Y2 ' 4.701in SY Y4=Tau*Y3 ' 4.068in SY Y5=Tau*Y4 ' 3.520in SY Y6=Tau*Y5 ' 3.046in SY Y7=Tau*Y6 ' 2.636in ' ' Spacing between Elements, Longest to Shortest: SY S12=4*Y1*Sigma ' 4.318in SY S23=Tau*S12 ' 3.737in SY S34=Tau*S23 ' 3.234in SY S45=Tau*S34 ' 2.798in SY S56=Tau*S45 ' 2.421in SY S67=Tau*S56 ' 2.095in ' ' Hypoteneuse Locations, NEGATIVE, Shortest to Longest: SY Hy7=0 ' 0.000in SY Hy6=Hy7S67 ' 2.095in SY Hy5=Hy6S56 ' 4.517in SY Hy4=Hy5S45 ' 7.315in SY Hy3=Hy4S34 ' 10.548in SY Hy2=Hy3S23 ' 14.285in SY Hy1=Hy2S12 ' 18.603in ' ' Projection to XAxis Locations, Shortest to Longest: SY X7=Hy7*cos(HalfAngle) SY X6=Hy6*cos(HalfAngle) SY X5=Hy5*cos(HalfAngle) SY X4=Hy4*cos(HalfAngle) SY X3=Hy3*cos(HalfAngle) SY X2=Hy2*cos(HalfAngle) SY X1=Hy1*cos(HalfAngle) ' ' Projection to ZAxis Locations, Shortest to Longest SY Z7=Zb SY Z6=Z7+S67*sin(HalfAngle) SY Z5=Z6+S56*sin(HalfAngle) SY Z4=Z5+S45*sin(HalfAngle) SY Z3=Z4+S34*sin(HalfAngle) SY Z2=Z3+S23*sin(HalfAngle) SY Z1=Z2+S12*sin(HalfAngle) ' GW 1 1 X7 0 Z7 X7 0 Z7 Rsrc ' SOURCE BETWEEN SHORTEST ' GW 2 7 X1 0 Z1 X1 Y1 Z1 Relem GW 3 7 X1 0 Z1 X1 Y1 Z1 Relem GW 4 5 X2 0 Z2 X1 0 Z1 Rboom GW 5 5 X2 0 Z2 X1 0 Z1 Rboom GW 6 6 X2 0 Z2 X2 Y2 Z2 Relem GW 7 6 X2 0 Z2 X2 Y2 Z2 Relem GW 8 4 X3 0 Z3 X2 0 Z2 Rboom GW 9 4 X3 0 Z3 X2 0 Z2 Rboom GW 10 6 X3 0 Z3 X3 Y3 Z3 Relem GW 11 6 X3 0 Z3 X3 Y3 Z3 Relem GW 12 4 X4 0 Z4 X3 0 Z3 Rboom GW 13 4 X4 0 Z4 X3 0 Z3 Rboom GW 14 5 X4 0 Z4 X4 Y4 Z4 Relem GW 15 5 X4 0 Z4 X4 Y4 Z4 Relem GW 16 3 X5 0 Z5 X4 0 Z4 Rboom GW 17 3 X5 0 Z5 X4 0 Z4 Rboom GW 18 4 X5 0 Z5 X5 Y5 Z5 Relem GW 19 4 X5 0 Z5 X5 Y5 Z5 Relem GW 20 3 X6 0 Z6 X5 0 Z5 Rboom GW 21 3 X6 0 Z6 X5 0 Z5 Rboom GW 22 4 X6 0 Z6 X6 Y6 Z6 Relem GW 23 4 X6 0 Z6 X6 Y6 Z6 Relem GW 24 3 X7 0 Z7 X6 0 Z6 Rboom GW 25 3 X7 0 Z7 X6 0 Z6 Rboom GW 26 3 X7 0 Z7 X7 Y7 Z7 Relem GW 27 3 X7 0 Z7 X7 Y7 Z7 Relem ' GS 0 0 0.0254 ' All of above in inches. GE 0 GN 1 EK LD 5 0 0 0 Cond ' Element Conductivity EX 0 1 1 0 1 0 ' Simulated SOURCE on SHORTEST ' ' FR Freq Sweep choices in order of increasing calculation time (fm holl_ands): ' FR 0 0 0 0 470 0 ' Fixed Freq FR 0 29 0 0 470 12 ' Freq Sweep 470806 every 12 MHz  OLD UHF BAND ' FR 0 34 0 0 410 12 ' Freq Sweep 410806 every 12 MHz  Even Wider Sweep ' FR 0 39 0 0 470 6 ' Freq Sweep 470698 every 6 MHz  PREFERRED FOR UHF ' FR 0 77 0 0 470 3 ' Freq Sweep 470698 every 3 MHz ' FR 0 153 0 0 470 1.5 ' Freq Sweep 470698 every 1.5 MHz ' FR 0 61 0 0 400 10 ' Freq Sweep 4001000 every 10 MHz  WIDEBAND SWEEP ' FR 0 71 0 0 300 10 ' Freq Sweep 3001000 every 10 MHz  WIDEBAND SWEEP ' FR HiVHF choices: ' FR 0 15 0 0 174 3 ' Freq Sweep 174216 every 3 MHz ' FR 0 29 0 0 174 1.5 ' Freq Sweep 174216 every 1.5 MHz  PREFERRED ' FR 0 43 0 0 174 1 ' Freq Sweep 174216 every 1 MHz  HiRez ' FR 0 26 0 0 150 6 ' Freq Sweep 150300 every 6 MHz  WIDEBAND SWEEP ' FR LoVHF choices: ' FR 0 35 0 0 54 1 ' Frequency Sweep every 1 MHz for Ch26 ' FR 0 36 0 0 75 1 ' Frequency Sweep every 1 MHz for Ch5 + Ch6 + FM ' FR 0 28 0 0 54 6 ' Wide Freq Sweep every 6 MHz for Ch213 ' FR 0 64 0 0 54 12 ' Super Wide Freq Sweep 54810 every 12 MHz ' RP choices in order of increasing calculation time: ' RP 0 1 1 1510 90 90 1 1 0 0 ' 1D Gain toward 0deg Azimuth  SIDE GAIN ' RP 0 1 1 1510 90 0 1 1 0 0 ' 1D Gain toward 90deg Azimuth  FORWARD GAIN ' RP 0 1 1 1510 90 180 1 1 0 0 ' 1D Gain toward 270deg Azimuth  REVERSE GAIN ' RP 0 1 37 1510 90 0 1 5 0 0 ' 2D (Left only) Azimuthal Gain Slice RP 0 1 73 1510 90 0 1 5 0 0 ' 2D Azimuthal Gain Slice  PREFERRED ' RP 0 73 1 1510 90 0 5 1 0 0 ' 2D Elevation Gain Slice ' RP 0 73 73 1510 90 0 5 5 0 0 ' 3D Lower Hemisphere reveals antenna (Fixed Freq) ' RP 0 285 73 1510 90 0 5 5 0 0 ' 3D Full Coverage obscures antenna (Fixed Freq) EN
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