CM Model of WA6SVT Omni-Gain Vertical Collinear for VHF and UHF CM Mike Collis WA6SVT CM The original version of this article appeared in the August 1990 issue of "73" CM Amateur Radio Magazine. CM http://www.repeater-builder.com/antenna/wa6svt.html CM CM 4NEC2 Model by Owen Duffy 20130914 CM CM The model uses a single GW element for the array, and segment numbers are CM calculated for connection of transmission line connections and source. The CM model uses 4NEC2 symbolic substitution. CE SY org=0 SY vf=0.66 SY qw=5904/440*0.0254/2 'FS quarter wave per WA6SVT SY zo=50 SY n=10 'Segments per quarter wave GW 1 int(n*(3+5*vf)) 0 0 org 0 0 org+(3+5*vf)*qw 0.005 GE 0 GN -1 EK EX 0 1 int(n*(2+0*vf)) 0 1 0 0 TL 1 int(n*(2+0*vf)) 1 int(n*(2+2*vf)) -zo 2*qw 0 0 0 0 TL 1 int(n*(2+2*vf)) 1 int(n*(2+4*vf)) -zo 2*qw 0 0 0 0 TL 1 int(n*(2+4*vf)) 1 int(n*(2+5*vf)) -zo 1*qw 0 0 1e9 FR 0 0 0 0 440 0 EN