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holl_ands | Home > Omni & Quasi-Omni Directional Antennas > Browse:FM Flat-Swept SBGH H-POL OMNI-PLUSFM TRIAD 4xRectangular-Loops H-OMNI-PLUSFM Goalkeeper Quad-Trap+Spurs Quasi-OMNIFM TRIAD Array of Dipoles H-OMNIFM Double-Hoop H-POL OMNIFM Double-Hoop + Vertical-Dipole OutsideFM Double-Hoop + Vertical-FD-OutsideFM Double-Hoop + Vert. Dipole In CenterFM Double-Hoop + Vertical-FD-In-CenterFM Double-Hoop + Vertical Whip OutsideFM Vertical Folded Dipole VPOL TRUE-OMNIFM Vertical Stick Dipole V-POL TRUE-OMNIFM + VHF Discone V-POL TRUE-OMNIFM Monopole Whip over Groundplane OMNIFM Turnstile QuasiOMNI Antennacraft FMSSFM Turnstile Quasi-Omni - AlternateFM Turnstile - A-C FMSS RotatedFM ESS Curves - Fracarro & DipolFM ZigZag - Triax FM ZigmaFM Right Circular Folded Dipole PairFM Cycloid Dipole - Circular Polarized490 MHz Flat-Swept SBGH H-POL OMNI-PLUS490 MHz Flat-Swept SBGH OMNI + TOP-HAT490 MHz 3-Dipole TRIAD Array H-POL OMNI490 MHz Crossed-Dipoles + One TL - OMNI490 MHz Crossed-Dipoles, 2 Unequal TLs490 MHz 7-El Yagi TRIAD H-POL OMNI-PLUS490 MHz 4El Yagi Triad H-POL True-OMNI490 MHz Collinear Helical HPOL OMNI-PLUS490 MHz Double Diamond H-POL Quasi-OMNIUHF Vertical Folded Dipole V-POL OMNIUHF SBGH H-POL OMNI-PLUS by nikimlUHF Hoverman Type 1 H-POL Quasi-OmniUHF M4 (10x9.5) Twisted 4-Bay Quasi-OMNIUHF 2xM4 Twisted 8-Bay - Quasi-OMNIHi-VHF Goalkeeper Quad-Trapezoid+SpursHi-VHF Monopole Whip V-POL TRUE-OMNIHi-VHF Vertical Folded Dipole OMNICh2-69 Crossed Loops 90-deg Phase ShiftCh2-69 + FM Crossed Loops - UVOX-22m "Classic" 3QWL+QWL J-Pole
FM TRIAD 4xRectangular-Loops H-OMNI-PLUS FM TRIAD of 4xRectangular-Loops Array, Horizontal OMNI-PLUS Array analyzed using 4nec2. FM Raw Gain = 3.3 to 4.4 dBi [across all Angles & Freqs] and SWR (300-ohms) is Under 3.0, which is roughly 1.2 to 2.2 dB higher than a 0 dbd = 2.2 dBi Omni....hence I call it an "OMNI-PLUS". DIMENSIONS (all in inches, from 4nec2 File): Z-Coord Height of Each Loop [Loop Height]: H=25 [hench Total = 100-in] Y-Coord Loop Width: W=35 Element to Center Array Radius: Ra=20.75 Feedpoint Gap at Middle of Dipoles: [Adjusts Impedance of Feedlines]: Gap=10 Z-Coord Length of Common Feedpoint: [Adjusts Impedance of Feedlines]: Zg=9 Z-Coord Offset between Source and Dipoles:  [Adjusts Length of Feedlines]: Zo=0 [CONSTRAINT: Not Needed] Element Diameter: dia=0.1875 [3/8-in O.D.] Note that Balun Wires would form the 9-in Length of the Vertical Common Feedpoint Wire at the Center. Date(s): 4Oct2018. Album by holl_ands. 1 - 17 of 17 Total. 1233 Visits.
enlarge 102KB, 834x1024 1 FM TRIAD 4xRectangle-Loops OMNI-PLUS 3D View enlarge 216KB, 765x1024 2 FM TRIAD 4xRectangle-Loops OMNI-PLUS Front View [1 large square = 12.5-inches] enlarge 286KB, 1024x960 3 FM TRIAD 4xRectangle-Loops OMNI-PLUS Top View [1 large square = 5-inches] enlarge 90KB, 1024x901 4 FM TRIAD 4xRectangle-Loops OMNI-PLUS 3D Detail enlarge 180KB, 663x1024 5 FM TRIAD 4xRectangle-Loops OMNI-PLUS Side View [1 large square = 12.5-inches] enlarge 30KB, 791x1024 6 FM TRIAD 4xRectangle-Loops OMNI-PLUS 4nec2 Text File includes Dimensions enlarge 201KB, 1152x664 7 FM TRIAD 4xRectangle-Loops OMNI-PLUS FM Raw Gain = 3.6 to 4.2 dBi (Azi = 30-deg) enlarge 198KB, 1152x664 8 FM TRIAD 4xRectangle-Loops OMNI-PLUS FM SWR (300-ohms) Under 3.0 enlarge 233KB, 1152x664 9 FM TRIAD 4xRectangle-Loops OMNI-PLUS FM Impedance enlarge 310KB, 1024x1024 10 FM TRIAD 4xRectangle-Loops OMNI-PLUS Azimuthal Gain at 88 MHz = 3.3 to 3.6 dBi enlarge 310KB, 1024x1024 11 FM TRIAD 4xRectangle-Loops OMNI-PLUS Azimuthal Gain at 98 MHz = 3.6 to 3.9 dBi enlarge 314KB, 1024x1024 12 FM TRIAD 4xRectangle-Loops OMNI-PLUS Azimuthal Gain at 108 MHz = 4.0 to 4.4 dBi enlarge 307KB, 1024x1024 13 FM TRIAD 4xRectangle-Loops OMNI-PLUS Elevation Gain at 88 MHz enlarge 308KB, 1024x1024 14 FM TRIAD 4xRectangle-Loops OMNI-PLUS Elevation Gain at 98 MHz enlarge 300KB, 1024x1024 15 FM TRIAD 4xRectangle-Loops OMNI-PLUS Elevation Gain at 108 MHz enlarge 28KB, 791x1024 16 FM TRIAD 4xRectangle-Loops OMNI-PLUS nikiml's EVAL Performance Summary *.txt File enlarge 28KB, 791x1024 17 FM TRIAD 4xRectangle-Loops OMNI-PLUS nikiml's EVAL Performance Summary *.html File
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