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[TowerTalk] Tubing schedules for Cushcraft monobanders

To: <towertalk@contesting.com>
Subject: [TowerTalk] Tubing schedules for Cushcraft monobanders
From: dietz@texas.net (Chuck Dietz)
Date: Mon, 07 Jul 1997 10:24:36 -0500
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Healy, Rus wrote:
> 
> Anybody know whether the Cushcraft 12-4CD has the same element tubing
> schedule as the 15-4CD or the 10-4CD? And, for that matter, what the
> element center tubing sizes are for each of these antennas?

Here are my YO files.  El diameters at top of column, lengths below.

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Cushcraft 10-4CD
28.000 28.500 28.700 MHz
4 elements, inches
            0.8750    0.7500    0.5000 
  0.0000   25.0000   44.0000   36.5000 
 52.0000   25.0000   44.0000   32.5000 
104.0000   25.0000   44.0000   29.5000 
187.5000   25.0000   44.0000   18.0000 

    These are dimensions #1 for CW and low phone.

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Cushcraft 20-4CD
14.000 14.100 14.250 MHz
4 elements, inches
            2.6795    1.2500    1.1250    0.8750    0.6250    0.5000 
  0.0000    3.0000   15.0000   68.0000   44.0000   32.0000   54.5000 
105.0000    3.0000   15.0000   68.0000   44.0000   32.0000   46.0000 
210.0000    3.0000   15.0000   68.0000   44.0000   32.0000   41.0000 
378.0000    3.0000   15.0000   68.0000   44.0000   32.0000   16.5000 

    These are dimensions #1 for CW and low phone.
The innermost taper sections represent the 4" by 6"
element-mounting plates.

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Cushcraft 12-4CD
24.940 MHz
4 elements, inches
            2.0000    0.8750    0.7500    0.6250    0.5000 
  0.0000    2.0000   23.0000   45.0000   45.0000    6.0000 
            2.0000    0.8750    0.7500    0.6250 
 67.6250    2.0000   23.0000   45.0000   45.0000 
114.9500    2.0000   23.0000   45.0000   42.5000 
209.9500    2.0000   23.0000   29.0000   44.0000 

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