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holl_ands | Home > Bowties, Dipoles, Batwings & Rhombics > Browse:UHF Stick Dipole - No ReflectorUHF Bowties - NO ReflectorUHF Fractal Bowtie - No ReflectorUHF CM4248 Folded Dipole Bowtie (ONLY)91XG Dipole ONLY & Dipole+First DirectorUHF Batwing - No Refl & Screen Grid ReflUHF Small Rhombic StackUHF Double RhomboidVHF Stick Dipoles incl Horiz.Rabbit-EarsHi-VHF+UHF Stick Dipole - No ReflectorHi-VHF+UHF "VEE" Stick DipoleHi-VHF Bowties - No ReflectorLo+Hi-VHF 1-Bay Bowtie - No Reflector
Hi-VHF Bowties - No Reflector Hi-VHF Four-Whisker, Six-Whisker, Enclosed and Indented Bowties analyzed using 4nec2. Performance on Ch2-6 + FMBand was also analyzed.  They continue to operate as bi-directional Dipoles with low Gain and much higher SWR on the lower channels. Six-Whisker Bowtie had better Raw Gain than Four-Whisker and much better SWR than either Four-Whisker, Enclosed or Indented Bowties. Tine Separation is between upper and lower times. Raw Gain and Azimuthal Gain Patterns were significantly worse for Enclosed and Indented Bowties. Date(s): 2 Apr 2010. Album by holl_ands. 1 - 61 of 61 Total. 8238 Visits.
enlarge 115KB, 1152x407 1 Hi-VHF Six-Whisker Bowtie - Front View (21"Hx69"W) All Whisker Lengths are the Same - 33-in. Tine Separation = 21-in, Feedline Separation = 3-in. Negligible impact if shorten middle for same width. [1 small box = 1-inch.] enlarge 108KB, 1024x648 2 Hi-VHF Six-Whisker Bowtie - Hi-VHF Raw Gain enlarge 128KB, 1024x648 3 Hi-VHF Six-Whisker Bowtie Hi-VHF SWR (300-ohm) is improved enlarge 259KB, 1024x1024 4 Hi-VHF Six-Whisker Bowtie Pattern at 174 MHz enlarge 259KB, 1024x1024 5 Hi-VHF Six-Whisker Bowtie Pattern at 198 MHz enlarge 259KB, 1024x1024 6 Hi-VHF Six-Whisker Bowtie Pattern at 216 MHz enlarge 109KB, 1024x648 7 Hi-VHF Six-Whisker Bowtie Ch2-FM Raw Gain enlarge 128KB, 1024x648 8 Hi-VHF Six-Whisker Bowtie Ch2-FM SWR (300-ohms) enlarge 115KB, 1024x648 9 Hi-VHF Six-Whisker Bowtie Ch2-FM Impedance enlarge 264KB, 1024x1024 10 Hi-VHF Six-Whisker Bowtie Ch2 Azimuthal Pattern enlarge 264KB, 1024x1024 11 Hi-VHF Six-Whisker Bowtie Ch5 Azimuthal Pattern enlarge 264KB, 1024x1024 12 Hi-VHF Six-Whisker Bowtie FM Azimuthal Pattern enlarge 185KB, 1024x690 13 Hi-VHF Six-Whisker Bowtie UHF Raw Gain: 6-7 dBi over most of Band, but directed toward DIAGONALS with Gain Hole in middle of the Band enlarge 189KB, 1024x690 14 Hi-VHF Six-Whisker Bowtie UHF SWR (300-ohms) Under 4.8 Excessive only on low and mid freqs enlarge 233KB, 1024x690 15 Hi-VHF Six-Whisker Bowtie UHF Impedance enlarge 351KB, 1024x1024 16 Hi-VHF Six-Whisker Bowtie Pattern at 470 MHz enlarge 336KB, 1024x1024 17 Hi-VHF Six-Whisker Bowtie Pattern at 530 MHz enlarge 343KB, 1024x1024 18 Hi-VHF Six-Whisker Bowtie Pattern at 590 MHz enlarge 343KB, 1024x1024 19 Hi-VHF Six-Whisker Bowtie Pattern at 590 MHz enlarge 340KB, 1024x1024 20 Hi-VHF Six-Whisker Bowtie Pattern at 698 MHz enlarge 353KB, 1024x1024 21 Hi-VHF Six-Whisker Bowtie Pattern at 806 MHz enlarge 104KB, 1152x359 22 Hi-VHF Four-Whisker Bowtie - Front View All Whisker Lengths are the Same - 33-in. Tine Separation = 17-in, Feedline Separation = 3-in. [1 small box = 1-inch.] enlarge 108KB, 1024x648 23 Hi-VHF Four-Whisker Bowtie - Hi-VHF Raw Gain enlarge 130KB, 1024x648 24 Hi-VHF Four-Whisker Bowtie Hi-VHF SWR (300-ohm) is higher than desired enlarge 258KB, 1024x1024 25 Hi-VHF Four-Whisker Bowtie Pattern at 174 MHz enlarge 260KB, 1024x1024 26 Hi-VHF Four-Whisker Bowtie Pattern at 198 MHz enlarge 258KB, 1024x1024 27 Hi-VHF Four-Whisker Bowtie Pattern at 216 MHz enlarge 109KB, 1024x648 28 Hi-VHF Four-Whisker Bowtie Ch2-FM Raw Gain enlarge 133KB, 1024x648 29 Hi-VHF Four-Whisker Bowtie Ch2-FM SWR (300-ohms) enlarge 111KB, 1024x648 30 Hi-VHF Four-Whisker Bowtie Ch2-FM Impedance enlarge 264KB, 1024x1024 31 Hi-VHF Four-Whisker Bowtie Ch2 Azimuthal Pattern enlarge 263KB, 1024x1024 32 Hi-VHF Four-Whisker Bowtie Ch5 Azimuthal Pattern enlarge 263KB, 1024x1024 33 Hi-VHF Four-Whisker Bowtie FM Azimuthal Pattern enlarge 90KB, 1152x316 34 Hi-VHF Enclosed Bowtie - Front View All Whisker Lengths are the Same - 31.5-in. Tine Separation = 15.8-in, Feedline Separation = 3-in. [1 small box = 1-inch.] enlarge 103KB, 1024x648 35 Hi-VHF Enclosed Bowtie - Hi-VHF Raw Gain enlarge 132KB, 1024x648 36 Hi-VHF Enclosed Bowtie - Hi-VHF SWR (300-ohm) enlarge 259KB, 1024x1024 37 Hi-VHF Enclosed Bowtie Pattern at 174 MHz enlarge 260KB, 1024x1024 38 Hi-VHF Enclosed Bowtie Pattern at 198 MHz enlarge 261KB, 1024x1024 39 Hi-VHF Enclosed Bowtie Pattern at 216 MHz enlarge 109KB, 1024x648 40 Hi-VHF Enclosed Bowtie Ch2-FM Raw Gain enlarge 145KB, 1024x648 41 Hi-VHF Enclosed Bowtie Ch2-FM SWR (300-ohms) enlarge 111KB, 1024x648 42 Hi-VHF Enclosed Bowtie Ch2-FM Impedance enlarge 264KB, 1024x1024 43 Hi-VHF Enclosed Bowtie Ch2 Azimuthal Pattern enlarge 264KB, 1024x1024 44 Hi-VHF Enclosed Bowtie Ch5 Azimuthal Pattern enlarge 264KB, 1024x1024 45 Hi-VHF Enclosed Bowtie FM Azimuthal Pattern enlarge 94KB, 1152x319 46 Hi-VHF Indented Bowtie - Front View All Whisker Lengths are the Same - 31.5-in. Tine Separation = 15.8-in, Feedline Separation = 3-in. Indent = 5.0-in. [1 small box = 1-inch.] enlarge 109KB, 1024x648 47 Hi-VHF Indented Bowtie - Hi-VHF Raw Gain enlarge 144KB, 1024x648 48 Hi-VHF Indented Bowtie - Hi-VHF SWR (300-ohm) enlarge 259KB, 1024x1024 49 Hi-VHF Indented Bowtie Pattern at 174 MHz enlarge 257KB, 1024x1024 50 Hi-VHF Indented Bowtie Pattern at 198 MHz enlarge 262KB, 1024x1024 51 Hi-VHF Indented Bowtie Pattern at 216 MHz enlarge 109KB, 1024x648 52 Hi-VHF Indented Bowtie Ch2-FM Raw Gain enlarge 131KB, 1024x648 53 Hi-VHF Indented Bowtie Ch2-FM SWR (300-ohms) enlarge 111KB, 1024x648 54 Hi-VHF Indented Bowtie Ch2-FM Impedance enlarge 264KB, 1024x1024 55 Hi-VHF Indented Bowtie Ch2 Azimuthal Pattern enlarge 264KB, 1024x1024 56 Hi-VHF Indented Bowtie Ch5 Azimuthal Pattern enlarge 264KB, 1024x1024 57 Hi-VHF Indented Bowtie FM Azimuthal Pattern enlarge 28KB, 791x1024 58 Hi-VHF Six-Whisker Bowtie 4nec2 File enlarge 28KB, 791x1024 59 Hi-VHF Four-Whisker Bowtie 4nec2 File enlarge 28KB, 791x1024 60 Hi-VHF Enclosed Bowtie 4nec2 File enlarge 28KB, 791x1024 61 Hi-VHF Indented Bowtie 4nec2 File
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