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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 Turnstile - A-C FMSS Rotated Antennacraft FMSS FM Turnstile, ROTATED to receive both Horizontally and Vertically Polarized signals ALSO is a fairly good RHCP (Right Hand Circularly Polarized) antenna when signal direction along X-Axis. Carefully check interconnections to ensure this happens in "forward" rather than "reverse" direction. Vertical Polarization is very consistent, but Horizontal Polarization exhibits the usual Bi-Directional Pattern. Vertical Gain remained between -1.6 and +0.7 dBi across all angles and frequencies. However, Horizontal Gain exhibited the usual Bi-Directional pattern, with Gain in Forward Direction between -3.1 and +0.1 dBi and Gain Nulls to either side. When receiving a RHCP signal, Total Gain (Vert. + Horiz.) remained between -1.6 and +2.3 dBi across all angles and frequencies, with a moderate RHCP/LHCP Cross-Polarization Ratio between 7 dB (108 MHz)and 10.4 dB (98 MHz). Date(s): 22 Apr 2013. Album by holl_ands. 1 - 14 of 14 Total. 4448 Visits.
enlarge 64KB, 978x1024 1 FM Turnstile - A-C FMSS Rotated 3D View enlarge 266KB, 1024x992 2 FM Turnstile - A-C FMSS Rotated Front View [1 large box = 5 inches] enlarge 77KB, 275x1024 3 FM Turnstile - A-C FMSS Rotated Top View [1 large box = 5 inches] enlarge 177KB, 1152x678 4 FM Turnstile - A-C FMSS Rotated FM Band Raw Gain enlarge 210KB, 1152x678 5 FM Turnstile - A-C FMSS Rotated FM Band SWR (300-ohms) Under 3 enlarge 243KB, 1152x678 6 FM Turnstile - A-C FMSS Rotated FM Band Impedance enlarge 331KB, 1024x1024 7 FM Turnstile - A-C FMSS Rotated Azimuthal Pattern at 87 MHz enlarge 334KB, 1024x1024 8 FM Turnstile - A-C FMSS Rotated Azimuthal Pattern at 98 MHz enlarge 338KB, 1024x1024 9 FM Turnstile - A-C FMSS Rotated Azimuthal Pattern at 108 MHz enlarge 329KB, 1024x1024 10 FM Turnstile - A-C FMSS Rotated RHCP Pattern at 87 MHz enlarge 324KB, 1024x1024 11 FM Turnstile - A-C FMSS Rotated RHCP Pattern at 98 MHz enlarge 328KB, 1024x1024 12 FM Turnstile - A-C FMSS Rotated RHCP Pattern at 108 MHz enlarge 78KB, 278x1024 13 FM Turnstile - A-C FMSS Rotated Side View [1 large box = 5 inches] enlarge 26KB, 791x1024 14 FM Turnstile - A-C FMSS Rotated 4nec2 File
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