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 holl_ands | Home > Colinear Dipole Arrays > VHF Finco 400-S w 20 Reflectors > 
VHF Finco 400-AS - X0090 300ohm
VHF Finco 400-AS with 12 Colinear Dipole Array and Screen with 20 Reflectors analyzed using 4nec2.

4nec2 posted in "Finco 400" thread, post X0090 by 300ohm.

Raw Gain more than 15 dBi and acceptable SWR on Ch7-8, but Excessive SWR on Ch 9-13.
Date(s): 3 Mar 2012. Album by holl_ands. 1 - 13 of 13 Total. 2115 Visits.
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VHF Finco 400-AS - X0090 300ohm
3D View

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VHF Finco 400-AS - X0090 300ohm
Front View
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VHF Finco 400-AS - X0090 300ohm
Side View
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VHF Finco 400-AS - X0090 300ohm
Hi-VHF Raw Gain = 15.3-15.7 on Ch7-10,
dropping off to 14.4 dBi on Ch12-13.

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VHF Finco 400-AS - X0090 300ohm
Hi-VHF SWR (300-ohms) Excessive except Ch7-8.

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VHF Finco 400-AS - X0090 300ohm
Hi-VHF Impedance

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VHF Finco 400-AS - X0090 300ohm
Azimuthal Pattern at 174 MHz

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VHF Finco 400-AS - X0090 300ohm
Azimuthal Pattern at 186 MHz

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VHF Finco 400-AS - X0090 300ohm
Azimuthal Pattern at 198 MHz

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VHF Finco 400-AS - X0090 300ohm
Azimuthal Pattern at 210 MHz

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VHF Finco 400-AS - X0090 300ohm
Azimuthal Pattern at 216 MHz

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VHF Finco 400-AS - X0090 300ohm
Top View
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VHF Finco 400-AS - X0090 300ohm
4nec2 File with holl_ands mods

 
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Very nice work!  
Slowly working on a 200 for starters. I was wishing it was more directional.  I want to use it as an FM antenna first, and compare it against a CM Probe 9.  

Thanks Bill
a.k.a. WJB55
 - Bill Bjorklund, Tue, 6 Mar 2012 9:25PM