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

holl_ands | Home > Loop Antennas incl Folded Dipole > Browse:Compare LoopsWi-Fi Folded Dipole - 2400-2500 MHzUHF Folded & Tri-Folded DipolesHi-VHF+UHF "VEE" Folded DipoleUHF Circular & Square Loops NO ReflectorUHF "Figure-8" Twin Loops - NO ReflUHF "Figure-8" Twin-Loops + xxRR - OPTHi-VHF Figure-8 Twin Loops - NO ReflUHF Twin-Hoop Chireix - NO or 26ReflRodsHi-VHF+UHF Tapered Loop - A-D C2 & C2-VHi-VHF+UHF Tapered DoubleLoop - d510d180UHF Shorted Bowtie Loop (SBL)Hi-VHF+UHF Bowtie-In-Loop - NO ReflectorHi-VHF+UHF Bowtie-In-Loop + 11RR - OPTHi-VHF+UHF Bowtie-In-Loop (DblAngRefl)HiVHF+UHF DreamcatcherU+H 2-Bay Hentenna NO+11ReflRodsUHF Hourglass LoopUHF Quad-Trapezoid-LoopUHF Quad-Trapezoid-Loop+2xBarsUHF Quadazoid Loop - No ReflUHF Quadazoid Loop + ReflectorHi-VHF Folded DipolesHi-VHF Circular Loop + ReflectorHi-VHF Square Loop + ReflectorHiVHF Shorted Bowtie Loop (NO Reflector)Hi-VHF Shorted Bowtie Loop (w Reflector)Hi-VHF Hourglass LoopHi-VHF Quad-Trapezoid-LoopHi-VHF Quad-Trapezoid-Loop+2Bars - OPTLo-VHF Tri-Folded Dipoles - OPTLo-VHF 2-Bay Folded Dipole - OPTVHF Square & Circular LoopsLo-VHF Folded DipolesLoVHF Hourglass-Loop - No ReflectorLoVHF+FM Hourglass LoopLoVHF Hourglass-Loop + 3 ReflRodsLoVHF Hourglass-Loop + 5 ReflRodsHi-VHF (+UHF) Twin Rectangular LoopsHiVHF+UHF RL-M2 2-Bay+Loop - NO Refl.H+U 2-Bay+Loop RLH2 (12x10) - NO ReflH+U 2-Bay+Loop RLH2 (10.5x8.7) - NO ReflH+U 4-Bay Loop RLH4 - No ReflHiVHF+UHF 2Square-Chireix-In-Rect. LoopHi-VHF+UHF In 3-ftx2-ft Picture Frame/
LoVHF Hourglass-Loop + 5 ReflRods Ch2, 3 & 6 Hourglass-Loop Antennas with 5 Reflector Rods (RR) analyzed using 4nec2: AWG8 Elements and 1/4-in O.D. Reflector Rods. For best performance on OTHER than Ch3, multiply Dimensions by Rescale Factor F = 63 / (Rescaled Freq). a) Ch3 Hourglass-Loop with 5 Reflector Rods is VERY TALL and not much improvement vs 3RR. On Ch3, Raw Gain = 10.6 to 10.0 dBi, F/B & F/R Ratio Minimum = 12.8 dB and SWR Under 2.7. Total Hourglass Height=152.5-in, Width=80.25-in & Mid Gap=1.0-in. Reflector Rod Lengths=98.75-in with Rod-Rod Spacings=69.25-in and RR-Bowtie Separation=40.5-in. Date(s): 15 Oct 2013. Album by holl_ands. 1 - 12 of 12 Total. 5831 Visits.
enlarge 58KB, 698x1024 1 Ch3 Hourglass-Loop + 5ReflRods - OPT enlarge 150KB, 501x1024 2 Ch3 Hourglass-Loop + 5ReflRods - OPT Front View [1 large square = 25 inches] enlarge 142KB, 602x1024 3 Ch3 Hourglass-Loop + 5ReflRods - OPT Top View [1 large square = 12.5 inches] enlarge 191KB, 1152x685 4 Ch3 Hourglass-Loop + 5ReflRods - OPT Ch3 Raw Gain = 10.0 to 10.6 dBi F/B & F/R Ratio Minimum = 12.8 dB enlarge 208KB, 1152x685 5 Ch3 Hourglass-Loop + 5ReflRods - OPT Ch3 SWR (300-ohms) Under 2.7 enlarge 244KB, 1152x685 6 Ch3 Hourglass-Loop + 5ReflRods - OPT Ch2-6 Impedance enlarge 308KB, 1024x1024 7 Ch3 Hourglass-Loop + 5ReflRods - OPT Azimuthal Pattern at 60 MHz enlarge 305KB, 1024x1024 8 Ch3 Hourglass-Loop + 5ReflRods - OPT Azimuthal Pattern at 63 MHz enlarge 304KB, 1024x1024 9 Ch3 Hourglass-Loop + 5ReflRods - OPT Azimuthal Pattern at 66 MHz enlarge 108KB, 411x1024 10 Ch3 Hourglass-Loop + 5ReflRods - OPT Side View [1 large square = 25 inches] enlarge 29KB, 791x1024 11 Ch3 Hourglass-Loop + 5ReflRods - OPT 4nec2 File enlarge 22KB, 791x1024 12 Ch3 Hourglass-Loop + 5ReflRods - OPT Content of Python Control Script *.bat text File
Select All.
Sign the Guestbook. There are no entries.