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Ch2-13 Delhi 5-El Dual-Driven FD Yagi
Ch2-13 Delhi 5-Element Dual-Driven Folded Dipole Yagi analyzed using 4nec2. Rear Fed was slightly better than Front Fed.
Dimensions per octopod's posted measurements:
https://www.digitalhome.ca/forum/186-antenna-research-development/155563-delhi-549214-vhf-hi-fm-questions.html#post1433895
Boom Length=57.5-in.
Date(s): 16 Aug 2012. Album by holl_ands. 1 - 20 of 20 Total. 463 Visits.
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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
3D View


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Top View
[1 big square = 12.5-inches]


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Side View
[1 big square = 5-inches]


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Raw Gain is reduced on Ch12-13


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Ch2-13 SWR (300-ohms) is fairly high


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Ch2-13 Impedance


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Azimuthal Pattern at 54 MHz (Ch2)


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Azimuthal Pattern at 87 MHz (Ch6)


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Azimuthal Pattern at 108 MHz (FM)


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Azimuthal Pattern at 174 MHz (Ch7)


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Azimuthal Pattern at 198 MHz (Ch10)


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Delhi VHF 5-El Dual-Driven FD Yagi - Rear Fed
Azimuthal Pattern at 216 MHz (Ch13)


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Delhi VHF 5-El Dual-Driven FD Yagi - Front Fed
3D View


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Delhi VHF 5-El Dual-Driven FD Yagi - Front Fed
Top View
[1 big square = 12.5-inches]


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Delhi VHF 5-El Dual-Driven FD Yagi - Front Fed
Top View
[1 big square = 12.5-inches]


Enlarge photo 16
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Delhi VHF 5-El Dual-Driven FD Yagi - Front Fed
Raw Gain drops off on Ch12-13


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Delhi VHF 5-El Dual-Driven FD Yagi - Front Fed
Ch2-13 SWR (300-ohms) is fairly high


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Delhi VHF 5-El Dual-Driven FD Yagi - Front Fed
Ch2-13 Impedance


Enlarge Microsoft Word Document 19
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DOC19
Delhi VHF 5-El Dual-Driven FD Yagi
4nec2 File


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Delhi VHF 5-El Dual-Driven FD Yagi
Front View
[1 big square = 12.5-inches]


 
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