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 holl_ands | Home > Multi-Bay Bowtie Antennas > UHF 4-Bay Bowties - NO Reflectors > 
mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Somewhat larger Super M4 (10.0" x 9.5") 4-Bay Bowtie, per mclapp's drawings, analyzed using 4nec2:
http://m4antenna.eastmasonvilleweather.com/Drawings/PDF%20Drawings.html
Height=34-inches, Weight=20.5-inches.  See 4nec2 File for dimensional details.

UHF Raw Gain = 9.0-12.3 dBi and SWR (300-ohms) under 3.5.
Hi-VHF Raw Gain = 3.5 dBi and SWR (300-ohms) under 3.2.

BowLength = 10.0-in (AWG8), Bowtie Spacing = 9.5-in, Tine Separation = 5.5-in.
Feedline Separation = 1.25-in, with 1.0-in at Crossover (AWG10).
Center of Crossover 3.125-in from Center of Outer Bowties.

Small increase in UHF Gain, but Hi-VHF Gain remains same as in 9.5" x 9.0" version.
Date(s): 6 Aug 2012. Album by holl_ands. 1 - 15 of 15 Total. 13835 Visits.
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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
3D View

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Front View
[1 big square = 2.5-inches]

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DOC3
mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
4nec2 File

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
UHF Raw Gain = 9.0-12.3 dBi

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
UHF SWR (300-ohms) Under 3.5

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
UHF Impedance

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Azimuthal Pattern at 470 MHz

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Azimuthal Pattern at 584 MHz

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Azimuthal Pattern at 698 MHz

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Hi-VHF Raw Gain = 3.5 dBi

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Hi-VHF SWR (300-ohms) Under 3.2

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Hi-VHF Impedance

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Azimuthal Pattern at 174 MHz

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Azimuthal Pattern at 198 MHz

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mclapp's M4 (10.0x9.5) 4-Bay - NO Refl.
Azimuthal Pattern at 216 MHz

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