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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. 4812 Visits.
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Ch3 Hourglass-Loop + 5ReflRods - OPT

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Ch3 Hourglass-Loop + 5ReflRods - OPT
Front View
[1 large square = 25 inches]


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Ch3 Hourglass-Loop + 5ReflRods - OPT
Top View
[1 large square = 12.5 inches]


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Ch3 Hourglass-Loop + 5ReflRods - OPT
Ch3 Raw Gain = 10.0 to 10.6 dBi
F/B & F/R Ratio Minimum = 12.8 dB


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Ch3 Hourglass-Loop + 5ReflRods - OPT
Ch3 SWR (300-ohms) Under 2.7


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Ch3 Hourglass-Loop + 5ReflRods - OPT
Ch2-6 Impedance


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Ch3 Hourglass-Loop + 5ReflRods - OPT
Azimuthal Pattern at 60 MHz


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Ch3 Hourglass-Loop + 5ReflRods - OPT
Azimuthal Pattern at 63 MHz


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Ch3 Hourglass-Loop + 5ReflRods - OPT
Azimuthal Pattern at 66 MHz


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Ch3 Hourglass-Loop + 5ReflRods - OPT
Side View
[1 large square = 25 inches]


Enlarge Microsoft Word Document 11
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DOC11
Ch3 Hourglass-Loop + 5ReflRods - OPT
4nec2 File


Enlarge Microsoft Word Document 12
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DOC12
Ch3 Hourglass-Loop + 5ReflRods - OPT
Content of Python Control Script *.bat text File


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