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Re: [TowerTalk] Spacing at center of K1WA/K3LR array

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Spacing at center of K1WA/K3LR array
From: jimlux <jimlux@earthlink.net>
Date: Mon, 28 Nov 2016 12:46:02 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On 11/28/16 11:34 AM, jimlux wrote:
On 11/28/16 11:10 AM, Mike Smith VE9AA wrote:
Greeting Antenna Gurus,
Here's the model

CM Tower with 4 vertical V dipoles          ' Comment cards

CM based on K3LR's article in 1994 QST

CE ' End of comment
'

SY TH=190/3.28'tower height

SY TR=1/3.28      'Tower Radius

SY DL=131/3.28 'Dipole element length

SY DA=45             'dipole angle

SY DR=.001          'Dipole radius (1mm)

SY DS=95/3.28   'Spacing from tower for center of dipole

SY DH=95/3.28   'height of dipole center above ground

SY FL=175/.78/3.28          'Feedline length

GW 101 101 -sin(DA)*DL 0 cos(DA)*DL 0 0 .1 DR ' Wire 1, upper part
GW        111         101         0              0              -0.1 
   -sin(DA)*DL        0              -cos(DA)*DL       DR
GW        121         1              0              0              0.1 
       0              0              -0.1        DR          'feedpoint
GW        122         1              1              0              0.05 
      1              0              -0.05      .001
GM        0              0              0              0              0 
            DS           0              DH          0 
'move dipole away from tower and up to height
GM        100         3              0              0              90 
       0              0              0              'make 4 copies
GW        900         100         0              0              0 
      0              0              th            tr             'tower
GE          1

'

GN 2 0 0 0 13 0.005
EX           0              122         1              00           1 
          0 
                 ' Voltage source (1+j0) at wire 1 segment 51
TL            121         1              122         1              50 
        FL            'transmission line
TL            221         1              222         1              50 
        FL
TL            321         1              322         1              50 
        FL
TL            421         1              422         1              50 
        FL
LD           5              0              0              0 
58000000             '20% of copper (steel)
LD           5              900         0              0 
37700000             'Tower
LD           0              222         1              1              1e6

LD           0              322         1              1              1e6

LD           0              422         1              1              1e6

'

FR 0 1 0 0 1.84 0 ' Set design frequency (300 Mc).
'

EN

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