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. 4812 Visits.