UHF Four-UnEqual-Diamonds CutEnds

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UHF Four-UnEqual-Diamonds CutEnds - 13RR

UHF Four-Unequal-Diamonds with CUT-ENDS and 13 Reflector Rods analyzed using 4nec2.

Nikiml's Python Optimization Scripts were used to find the best values for ALL of the SYmbol variables in Dnes
original 4nec2 file which would provide highest Raw Gain consistent with low SWR and good F/B & F/R Ratios.

Date(s): 5 Apr 2013. Album by holl_ands. 1 - 21 of 21 Total. 7442 Visits.

enlarge 97KB, 515x1024 1 Four-UnEqual-Diamonds CutEnds - 13RR 3D View Crossovers between Large & Small Diamonds do NOT touch.	enlarge 179KB, 486x1024 2 Four-UnEqual-Diamonds CutEnds - 13RR Front View [1 large box = 2.5 inches] Note that Reflector Rods are directly behind Diamond Apexes.	enlarge 79KB, 236x1024 3 Four-UnEqual-Diamonds CutEnds - 13RR side View [1 large box = 2.5 inches]
enlarge 198KB, 1152x678 4 Four-UnEqual-Diamonds CutEnds - 13RR UHF Raw Gain Max = 10.9 dBi F/B & F/R Ratio Min = 17.1 dB	enlarge 187KB, 1152x678 5 Four-UnEqual-Diamonds CutEnds - 13RR UHF SWR (300-ohms) under 1.9	enlarge 246KB, 1152x678 6 Four-UnEqual-Diamonds CutEnds - 13RR UHF Impedance
enlarge 300KB, 1024x1024 7 Four-UnEqual-Diamonds CutEnds - 13RR Azimuthal Pattern at 470 MHz	enlarge 302KB, 1024x1024 8 Four-UnEqual-Diamonds CutEnds - 13RR Azimuthal Pattern at 530 MHz	enlarge 300KB, 1024x1024 9 Four-UnEqual-Diamonds CutEnds - 13RR Azimuthal Pattern at 590 MHz
enlarge 301KB, 1024x1024 10 Four-UnEqual-Diamonds CutEnds - 13RR Azimuthal Pattern at 650 MHz	enlarge 301KB, 1024x1024 11 Four-UnEqual-Diamonds CutEnds - 13RR Azimuthal Pattern at 698 MHz	enlarge 296KB, 1024x1024 12 Four-UnEqual-Diamonds CutEnds - 13RR Azimuthal Pattern at 758 MHz
enlarge 287KB, 1024x1024 13 Four-UnEqual-Diamonds CutEnds - 13RR Azimuthal Pattern at 806 MHz	enlarge 122KB, 412x1024 14 Four-UnEqual-Diamonds CutEnds - 13RR Top View [1 large box = 2.5 inches]	enlarge 30KB, 791x1024 15 Four-UnEqual-Diamonds CutEnds - 13RR 4nec2 File
enlarge 177KB, 1152x678 16 Four-UnEqual-Diamonds CutEnds - 13RR Hi-VHF REVERSE Raw Gain = 4.4 dBi FORWARD Raw Gain is 0 to 2 dBi LESS	enlarge 217KB, 1152x678 17 Four-UnEqual-Diamonds CutEnds - 13RR Hi-VHF SWR (300-ohms) is EXCESSIVE	enlarge 257KB, 1152x678 18 Four-UnEqual-Diamonds CutEnds - 13RR Hi-VHF Impedance
enlarge 316KB, 1024x1024 19	enlarge 316KB, 1024x1024 20	enlarge 319KB, 1024x1024 21

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- Jose manuel Perez | joseperezhernandez1986@gmail.com, Thu, 28 Apr 2022 10:54PM