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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 Array of Dipoles H-OMNI FM TRIAD Array of Dipoles, Horizontal-OMNI analyzed using 4nec2, based on design by L. B. Cebik, W4RNL, with 4nec2 File prepared by Carol F. Milazzo, KP4MD, see http://www.qsl.net/kp4md/omnihoriz.htm FM Raw Gain = 0.3 to 1.6 dBi [across all Angles & Freqs] and SWR (300-ohms) is Under 2.6, which is roughly 1.9 to 0.6 dB LOWER than a 0 dbd = 2.2 dBi Omni. Note that 75:300-Ohm Balun Wires form the Simulated Vertical Source Wire, which is CRITICAL to Performance and needs to be 6-in Long.  Three Feedlines run from there to each Dipole's mid-point Gap = 0.5-in, whose dimension is also CRITICAL for Performance. Date(s): 4Oct2018. Album by holl_ands. 1 - 16 of 16 Total. 1163 Visits.
enlarge 53KB, 1152x712 1 FM TRIAD of Dipoles H-OMNI 3D View enlarge 113KB, 1152x423 2 FM TRIAD of Dipoles H-OMNI Front View [1 large square = 12.5-inches] enlarge 246KB, 1024x1014 3 FM TRIAD of Dipoles H-OMNI Top View [1 large square = 12.5-inches] enlarge 199KB, 1152x664 4 FM TRIAD of Dipoles H-OMNI FM Raw Gain = 1.6 to 1.2 dBi enlarge 202KB, 1152x664 5 FM TRIAD of Dipoles H-OMNI FM SWR (300-ohms) Under 2.6 enlarge 230KB, 1152x664 6 FM TRIAD of Dipoles H-OMNI FM Impedance enlarge 306KB, 1024x1024 7 FM TRIAD of Dipoles H-OMNI Azimuthal Gain on 88 MHz = 1.0 to 1.6 dBi enlarge 303KB, 1024x1024 8 FM TRIAD of Dipoles H-OMNI Azimuthal Gain on 98 MHz = 0.7 to 1.5 dBi enlarge 303KB, 1024x1024 9 FM TRIAD of Dipoles H-OMNI Azimuthal Gain on 108 MHz = 0.3 to 1.2 dBi enlarge 315KB, 1024x1024 10 FM TRIAD of Dipoles H-OMNI Elevation Gain at 88 MHz enlarge 310KB, 1024x1024 11 FM TRIAD of Dipoles H-OMNI Elevation Gain at 98 MHz enlarge 314KB, 1024x1024 12 FM TRIAD of Dipoles H-OMNI Elevation Gain at 108 MHz enlarge 30KB, 791x1024 13 FM TRIAD of Dipoles H-OMNI 4nec2 Text File includes Dimensions enlarge 28KB, 791x1024 14 FM TRIAD of Dipoles H-OMNI nikiml's EVAL Performance Summary *.txt File enlarge 28KB, 791x1024 15 FM TRIAD of Dipoles H-OMNI nikiml's EVAL Performance Summary *.html enlarge 115KB, 1152x457 16 FM TRIAD of Dipoles H-OMNI Side View [1 large square = 12.5-inches]
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