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holl_ands | Home > Multi-Bay Dipole Antennas > Browse:UHF 3-Bay Fat Dipole + 16 RR - OPTUHF 3-Bay Fat Dipole + 12RR - OPTUHF 3-Bay FAT Dipoles + 12 Pair RR - OPTW-G HD-4400 4-Bay Dipole - NO ReflectorW-G HD-4400 4-Bay Dipole with ReflectorUHF 4-Bay Fat Dipoles + Grid ReflectorUHF Vertical 8-Bay Dipole - NO ReflectorUHF Vertical 8-Bay Dipoles + 43RRUHF Vert 8-Bay Dipole + 43 Pair RR - OPTWinegard HD-8800 8-Bay FAT Dipoles
UHF Vertical 8-Bay Dipoles + 43RR UHF Vertical 8-Bay Dipole Array with 43 Reflector Rods analyzed using 4nec2 after Dimensions determined using nikiml's Python Optimization Scripts. UHF Raw Gain = 13.5 to 17.0 to 15.1 dBi, F/B & F/R Ratio Min = 18.3 dB and SWR (300-ohms) under 2.4.  Crossover details must be exactly copied to maintain pattern symmetry. ASSUMED DIMENSIONS (in inches): Rdip=0.4375 = Radius of Dipole Elements (7/8-in O.D.) Rfeed=0.06425 = Radius of Feedlines (AWG8) Rrod=0.1875 = Radius of Reflector Rods (3/8-in O.D.) Hop=1.0 = X-Axis Separation at the Cross-Over Cond=2e+07 = Conductivity for Aluminum DSwp=0 = Dipole Forward Sweep (NOT USED IN THIS MODEL] OPTIMIZED DIMENSIONS  (in inches, rounded to nearest 1/8-in): DDSep=9.37 = Dipole-To-Dipole Separation DLen=6.65 = Dipole Half-Length (JUST THE TUBE) FeedSep=2.5 = Separation between two FEEDLINE wires ZCross=1.39 = From Center of Feedline Cross-Over to Center of OUTER Dipoles RS=4.16 = Reflector Rod Separation behind Dipoles RR=1.74 = Reflector Rod-to-Rod Separation YRod=18.20 = Reflector Rod Half-Lengths Date(s): 7 Aug 2014. Album by holl_ands. 1 - 15 of 15 Total. 5194 Visits.
enlarge 177KB, 513x1024 1 UHF Vertical 8-Bay Dipoles + 43RR 3D View enlarge 255KB, 639x1024 2 UHF Vertical 8-Bay Dipoles + 43RR Front View [1 large square = 5 inches] enlarge 73KB, 302x1024 3 UHF Vertical 8-Bay Dipoles + 43RR Top View [1 large square = 5 inches] enlarge 170KB, 1024x690 4 UHF Vertical 8-Bay Dipoles + 43RR UHF Raw Gain = 13.5 to 17.0 to 15.1 dBi UHF F/B & F/R Ratio Minimum = 18.3 dB enlarge 185KB, 1024x690 5 UHF Vertical 8-Bay Dipoles + 43RR UHF SWR (300-ohms) Under 2.4 enlarge 228KB, 1024x690 6 UHF Vertical 8-Bay Dipoles + 43RR UHF Impedance enlarge 299KB, 1024x1024 7 UHF Vertical 8-Bay Dipoles + 43RR Azimuthal Pattern at 470 MHz enlarge 299KB, 1024x1024 8 UHF Vertical 8-Bay Dipoles + 43RR Azimuthal Pattern at 530 MHz enlarge 299KB, 1024x1024 9 UHF Vertical 8-Bay Dipoles + 43RR Azimuthal Pattern at 590 MHz enlarge 301KB, 1024x1024 10 UHF Vertical 8-Bay Dipoles + 43RR Azimuthal Pattern at 650 MHz enlarge 300KB, 1024x1024 11 UHF Vertical 8-Bay Dipoles + 43RR Azimuthal Pattern at 698 MHz enlarge 294KB, 1024x1024 12 UHF Vertical 8-Bay Dipoles + 43RR Azimuthal Pattern at 758 MHz enlarge 296KB, 1024x1024 13 UHF Vertical 8-Bay Dipoles + 43RR Azimuthal Pattern at 806 MHz enlarge 42KB, 791x1024 14 UHF Vertical 8-Bay Dipoles + 43RR 4nec2 File enlarge 70KB, 194x1024 15 UHF Vertical 8-Bay Dipoles + 43RR Side View [1 large square = 5 inches]
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