SBGH Wide Beamwidth Investigations (e.g. 60+degrees or multi-lobed), including higher Gain Omnidirectional antennas analyzed using 4nec2. In response to Vorg's situation in Tucson, AZ with THREE widely separated tower groups.
Includes following SBGH versions:
a. WW-X0412 by wildwillie: TWO Sets of Slanted Reflector Rods, 28 each Set. b. WW-X0414 by wildwllie: One Set of 7 Slanted Reflector Rods: 3 irregularly shaped Lobes.
c. WW-X0418 by wildwillie: Elements Swept Forward + 28 Angled Reflector Rods: Nearly 180-deg coverage. d. WW-X0418-Mod8: holl_ands Mod: 8 vice 28 Rods: More Rear Gain. e. WW-X0418-Mod4: holl_ands Mod: 4 vice 28 Rods: Irregular, coming closer to Omni-directional coverage. f. WW-X0418-Mod0: holl_ands Mod: NO Reflector Rods: Nearly Omni-directional coverage with 5-6+ dBi Raw Gain.
This is much more than a typical 2.15 dBi (0 dBd) Gain Omni-directional antenna.....or Rabbit-Ears.
Date(s): 10 Sept 2009. Album by holl_ands. 1 - 54 of 54 Total. 8255 Visits.
enlarge 0KB, 1024x983 1 Vorg in Tucson, Az has THREE widely separated tower groups: 260-275-deg, 39-deg and "The CW" at 171-deg.
enlarge 0KB, 1024x974 2 SBGH WW-X0412 - 3D View TWO Sets of Slanted Reflector Rods, 28 each Set
enlarge 0KB, 820x1024 3 SBGH WW-X0412 - Front View TWO Sets of Slanted Reflector Rods, 28 each Set
enlarge 0KB, 669x1024 4 SBGH WW-X0412 - Side View TWO Sets of Slanted Reflector Rods, 28 each Set
enlarge 0KB, 908x1024 5 SBGH WW-X0412 - Top View TWO Sets of Slanted Reflector Rods, 28 each Set
enlarge 30KB, 791x1024 6 SBGH WW-X0412 - 4nec2 File TWO Sets of Slanted Reflector Rods, 28 each Set
enlarge 0KB, 1024x819 7 SBGH WW-X0412 TWO Sets of Slanted Reflector Rods, 28 each Set UHF Raw Gain = 7.0-9.5 dBi for 20-deg Azimuth.
enlarge 0KB, 1024x819 8 SBGH WW-X0412 - UHF SWR under 3.0 TWO Sets of Slanted Reflector Rods, 28 each Set
enlarge 0KB, 1024x819 9 SBGH WW-X0412 - UHF Impedance TWO Sets of Slanted Reflector Rods, 28 each Set
enlarge 0KB, 1024x750 10 SBGH GH4 WW-X0414 - 3D View One Set of 7 Slanted Reflector Rods
enlarge 0KB, 905x1024 11 SBGH GH4 WW-X0414 - Front View One Set of 7 Slanted Reflector Rods
enlarge 0KB, 1024x784 12 SBGH GH4 WW-X0414 - Side View One Set of 7 Slanted Reflector Rods
enlarge 0KB, 1024x777 13 SBGH GH4 WW-X0414 - Top View One Set of 7 Slanted Reflector Rods
enlarge 26KB, 791x1024 14 SBGH GH4 WW-X0414 - 4nec2 File One Set of 7 Slanted Reflector Rods
enlarge 0KB, 1024x819 15 SBGH GH4 WW-X0414 - UHF Raw Gain One Set of 7 Slanted Reflector Rods Rear Gain=7.1dBi on Ch44 (650-656 MHz).
enlarge 0KB, 1024x819 16 SBGH GH4 WW-X0414 One Set of 7 Slanted Reflector Rods UHF Raw Gain = 7-13 dBi for 90-deg Azimuth (X-Axis) Pattern for Ch31-32 (578 MHz).
enlarge 0KB, 1024x819 17 SBGH GH4 WW-X0414 - UHF SWR under 2.3 Pattern for Ch14 (470 MHz)
enlarge 0KB, 1024x819 33 SBGH WW-X0418-Mod8 Elements Swept Forward + 8 Angled Reflector Rods UHF Raw Gain = 5-13 dBi for 90-deg Azimuth (X-Axis) Fewer Rods for improved response to the REAR on Ch44 (650-656 MHz).
enlarge 0KB, 1024x819 34 SBGH WW-X0418-Mod8 UHF Raw Gain = 5-13 dBi for 90-deg Azimuth (X-Axis) Elements Swept Forward + 8 Angled Reflector Rods
enlarge 0KB, 1024x819 35 SBGH WW-X0418-Mod8 - UHF SWR under 2.2 Elements Swept Forward + 8 Angled Reflector Rods
enlarge 0KB, 1024x819 42 SBGH WW-X0418-Mod4 - UHF Raw Gain Elements Swept Forward + 4 Angled Reflector Rods UHF Raw Gain = 7-5.5 dBi for 55-deg Azimuth. Fewer Rods for improved response to the REAR on Ch44 (650-656 MHz). It's nearly an OMNI-directional Pattern.
enlarge 0KB, 1024x819 43 SBGH WW-X0418-Mod4 Elements Swept Forward + 4 Angled Reflector Rods UHF Raw Gain = 7-5.5 dBi for 55-deg Azimuth.
enlarge 0KB, 1024x819 44 SBGH WW-X0418-Mod4 - UHF SWR under 3.0 Elements Swept Forward + 4 Angled Reflector Rods
enlarge 0KB, 591x1024 46 SBGH WW-X0418-Mod0 - 3D View Elements Swept Forward + NO Reflector Rods
enlarge 0KB, 639x1024 47 SBGH WW-X0418-Mod0 - Front View Elements Swept Forward + NO Reflector Rods
enlarge 0KB, 311x1024 48 SBGH WW-X0418-Mod0 - Side View Elements Swept Forward + NO Reflector Rods
enlarge 0KB, 594x1024 49 SBGH WW-X0418-Mod0 - Top View Elements Swept Forward + NO Reflector Rods
enlarge 26KB, 791x1024 50 SBGH WW-X0418-Mod0 - UHF Impedance Elements Swept Forward + NO Reflector Rods
enlarge 0KB, 1024x819 51 SBGH WW-X0418-Mod0 Elements Swept Forward + NO Angled Reflector Rods UHF Raw Gain = 6-4 dBi for 270-deg (REARWARD). Fewer Rods for improved response to the REAR on Ch44 (650-656 MHz). It's nearly an OMNI-directional Pattern.
enlarge 0KB, 1024x819 52 SBGH WW-X0418-Mod0 Elements Swept Forward + NO Reflector Rods UHF Raw Gain = 6-4 dBi for 270-deg (REARWARD).
enlarge 0KB, 1024x819 53 SBGH WW-X0418-Mod0 - UHF SWR(300) under 3.0 Elements Swept Forward + NO Reflector Rods
enlarge 0KB, 1024x819 54 SBGH WW-X0418-Mod0 - UHF Impedance Elements Swept Forward + NO Reflector Rods
