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Bruce Array
Variant Bruce Arrays analyzed using 4nec2, based on Fig 8.13 in Joe Carr's "Antenna Toolkit, 2nd Ed":
http://books.google.com/books?id=q11p4eduQGsC&pg=PA166&lpg=PA166&dq=Joe+Carr+Six+Shooter&source=bl&ots=KLrTrEdlp4&sig=GDBun3xjKTV3C_eOi7N9BpXW5G4&hl=en&ei=-nRqSsiyHZKBtwfp-4zHBQ&sa=X&oi=book_result&ct=result&resnum=1

Actually these are variations on the "True" Bruce Array: http://rudys.typepad.com/ant/files/antenna_array_80160m.pdf

Although these Bruce Array Variants provide Raw Gain across most of the New UHF TV Band, frequency range for low SWR is very small.
Unsuitable for either Hi-VHF or UHF TV Bands due to the need for a tunable matching network.
Date(s): 26 July 2009. Album by holl_ands. 1 - 12 of 12 Total. 6182 Visits.
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Variant4 Center Fed Bruce Array
(All Half-Wavelength)


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Variant4 Center Fed Bruce Array - Raw Gain

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Variant4 Center Fed Bruce Array - SWR (300-ohm)

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Variant4 Center Fed Bruce Array - SWR (75-ohm)

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Variant4 Center Fed Bruce Array - Impedance

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Variant4 Center Fed Bruce Array (All Half-Wavelength)
Example 4nec2 File


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Variant5 Center Fed Bruce Array (Shortened)

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Variant5 Center Fed Bruce Array - Raw Gain

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Variant5 Center Fed Bruce Array - SWR (300-ohm)

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Variant5 Center Fed Bruce Array - SWR (75-ohm)

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Variant5 Center Fed Bruce Array - Impedance

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Variant5 Center Fed Bruce Array (Shortened)
Example 4nec2 File


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looks good
 - 
Mike S Mather, Sat, 14 May 2011 10:12PM