• Public Gallery  • Help
		• Join Now!  • Log In  • Feature Tour

holl_ands | Home > Multi-Bay Bowtie Antennas > UHF 4-Bay Bowties with Reflector > Browse:Ch22 FF4 4-Bay Bowtie + DARNEW UHF Free-Form 4-Bay + FlatScreenReflUHF Free-Form 4-Bay + DblAnglReflUHF FF4 SingleAngleRefl - DeepSidelobesUHF M4 (10x9.5) Super-4-Bay+DARUHF M4 (9.5x9.0)+DAR Flat vs Swept BowsM4 (9.5x9.0)+DAR Flat v Swept BowsM4 (9.5x9) + Various FLAT Refl. WidthsM4 (9.5x9.0) + 40x34 FLAT Refl at 5-inUHF M4 (9.5x9.0) 4-Bay+FLAT Grid at 5.5"UHF M4 (9.5x9.0) 4-Bay+FLAT Grid at 16"M4 (9.5x9) + Various Number of RRs - OPTUHF KosmicSuperQuad+DAR FlatvsSwept BowsUHF Actual CM4221 Flat Bows & ReflectorUHF CM4221a.ez.nec Flat Bows & ReflectorUHF CM4221HD (Hacked) - 16 ReflRodsUHF CM-4221HD - 10-in WhiskersUHF CM4221HD (Hacked) + Director RodsCM4221HD (Hacked) + Stub FilterAntennacraft U-4000 - 9 Reflector RodsA-D Old DB-4 4-Bay Bowtie with Reflector
Ch22 FF4 4-Bay Bowtie + DAR Ch22 FF4 4-Bay Bowtie with Variable Double Angle Reflector (VDAR) analyzed using 4nec2. Two versions are presented.  Dimensions are found in the 4nec2 Text Files: A) Optimized for JUST Forward Gain and SWR: VDAR is same as TWO Stacked UHF Band FF4 VDARs, hence Twice as tall [96-in H]. Raw Gain = 18.2 dB, F/B & F/R Ratios = 12.3 dB and SWR under 2.0. B) Optimized for Forward Gain, SWR, F/B & F/R Ratios: T.B.D. Date(s): 15Jan2019. Album by holl_ands. 1 - 12 of 12 Total. 1708 Visits.
enlarge 160KB, 674x1024 1 Ch22 FF4 4-Bay Bowtie + DAR 3D View enlarge 249KB, 575x1024 2 Ch22 FF4 4-Bay Bowtie + DAR Front View [1 large square = 12.5-inches] enlarge 109KB, 299x1024 3 Ch22 FF4 4-Bay Bowtie + DAR Top View [1 large square = 2.5-inches] enlarge 180KB, 1024x645 4 Ch22 FF4 4-Bay Bowtie + DAR Ch22 Raw Gain = 18.2 dBi Ch22 F/B & F/R Ratio = 12.3 dB enlarge 196KB, 1024x645 5 Ch22 FF4 4-Bay Bowtie + DAR Ch22 SWR (300-ohms) Under 2.0 enlarge 247KB, 1024x645 6 Ch22 FF4 4-Bay Bowtie + DAR UHF Impedance enlarge 348KB, 1024x1024 7 Ch22 FF4 4-Bay Bowtie + DAR Azimuthal Pattern at 518 MHz enlarge 344KB, 1024x1024 8 Ch22 FF4 4-Bay Bowtie + DAR Azimuthal Pattern at 524 MHz enlarge 116KB, 364x1024 9 Ch22 FF4 4-Bay Bowtie + DAR Side View [1 large square = 12.5-inches] enlarge 26KB, 791x1024 10 Ch22 FF4 4-Bay Bowtie + DAR 4nec2 File includes all Dimensions enlarge 164KB, 791x1024 11 Ch22 FF4 4-Bay Bowtie + DAR EVAL Summary of Performance Text File enlarge 125KB, 791x1024 12 Ch22 FF4 4-Bay Bowtie + DAR EVAL *.html Performance Summary
Select All.
Sign the Guestbook. There are no entries.