Hi-VHF Goalkeeper, a Quasi-Omni [accidental] variation of the Quad-Trapezoid+Spurs was analyzed using 4nec2, assuming QICT (Quarter-Inch Copper Tubing) for the Elements.
Hi-VHF Raw Gain = 2.1 to 2.9 dBi (Forward & Rear) and SWR (300-ohms) under 1.8 (Excellent). Beamwidth = 100-110 degrees. [For QICT, could substitute AWG10 with higher SWR.]
Provides Bi-Directional Pattern firmly aligned along the X-Axis with wide Beamwidth and NULLs to the sides. Although Horizontally Polarized, it also provides both Right-Hand and Left-Hand Circular Polarization, but with only 1 dB LHCP suppression.
22 Jul 201412 items5729 visitsAlbum by holl_ands
enlarge 57KB, 749x1024 1 Hi-VHF Goalkeeper Quad-Trapezoid+Spurs 3D View
