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 holl_ands | Home > Multi-Bay Bowtie Antennas > 
NEW UHF Free-Form 6-Bay (NU-FF6) + VDAR
NEW-UHF [470-608 MHz] Free-Form 6-Bay (NU-FF6) Bowtie Antennas with 60"Hx36"W VDAR
(Variable Double Angle Reflector, 2x2" Grid) analyzed using 4nec2.  Dimensions were Optimized
using nikiml's Python Scripts.

NEW UHF Band Raw Gain = 15.2 to 17.8 dBi, F/R & F/R Ratio Min. = 21.0 dB and SWR (300-ohms) Under 2.1.
Hi-VHF Raw Gain = 13.7 to 8.9 dBi, F/B & F/R Ratio Min = 13.9 dB and SWR (300-ohms) = 5 to 21 is Excessive.

Compared to OLD UHF Band FF6, we see 1.8 dB Gain increase on 608 MHz, but 0.2 dB Loss on 470 MHz
with significant increase in Hi-VHF Band Gain:
UHF = 15.0 to 16.4 to 16.0 to 17.0 dBi, F/B & F/R Ratio Min = 15.2 dB and SWR (300-ohms) Under 1.7.
Hi-VHF Raw Gain = 9.1 to 8.0 dBi, F/B & F/R Ratio Min = 14.1 dB and SWR (300-ohms) = 17 to 13 is Excessive:
https://imageevent.com/holl_ands/multibay/uhf6baybowtievdar

EDIT (7May2019): Added comparison to Old UHF Band FF6.
Date(s): 26 Aug 2017. Album by holl_ands. 1 - 20 of 20 Total. 3875 Visits.
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NEW-UHF FF6 + VDAR (60x36-in)
3D View


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NEW-UHF FF6 + VDAR (60x36-in)
Front View
[1 large square = 5-inches]


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NEW-UHF FF6 + VDAR (60x36-in)
Top View
[1 large square = 2.5-inches]


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NEW-UHF FF6 + VDAR (60x36-in)
NEW UHF Raw Gain = 15.2 to 17.8 dBi
F/R & F/R Ratio Min. = 21.0 dB


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NEW-UHF FF6 + VDAR (60x36-in)
NEW UHF SWR (300-ohms) Under 2.1


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NEW-UHF FF6 + VDAR (60x36-in)
UHF Impedance


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NEW-UHF FF6 + VDAR (60x36-in)
Azimuthal Pattern at 470 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Azimuthal Pattern at 530 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Azimuthal Pattern at 608 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Azimuthal Pattern at 650 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Azimuthal Pattern at 698 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Side View
[1 large square = 5-inches]


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NEW-UHF FF6 + VDAR (60x36-in)
Elevation Pattern at 470 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Elevation Pattern at 530 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Elevation Pattern at 608 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Elevation Pattern at 650 MHz


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NEW-UHF FF6 + VDAR (60x36-in)
Elevation Pattern at 698 MHz


Enlarge Microsoft Word Document 18
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DOC18
NEW-UHF FF6 + VDAR (60x36-in)
4nec2 File contains Dimensions


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DOC19
NEW-UHF FF6 + VDAR (60x36-in)
EVAL Summary Text File


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NEW-UHF FF6 + VDAR (60x36-in)
EVAL *.html Performance Summary File


 
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