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COLLINEAR_4ARRAY_915_28.5DBI.NEC
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COLLINEAR_4ARRAY_915_28.5DBI.NEC
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CM P-multip Rnx*2 Rny*2 -G -Rx -Ry -G Rx -Ry -G Rx Ry
CM P-multip Rny*2 5 -G -Rx -Ry -G -Rx Ry SRL -SRA Ry
CM P-multip Rny*2 5 -G Rx Ry -G Rx -Ry SRL SRA -Ry
CE
SY freq=915
SY AH=3 'Antenna height in wavelength
SY spacing=0.0130 'Adj gap when testing 0.0130 Help in adjusting VSWR.
SY W=0.0020 'Wire thickness 0.0041 0.0020 @ 2.45 ghz is ethernet cable
SY wla=0.425562 'Center wire 0.4239
SY wlb=0.680513 'Inner wires 0.6787
SY wlc=wlb 'Outer wires 0.6787
SY wld=wlb 'End wires 0.6787
SY hr=0.045819 'Ring radius 0.04558
SY da=wla
SY db=da+spacing
SY dc=db+wlb
SY dd=dc+spacing
SY de=dd+wlc
SY df=de+spacing
SY dg=df+wld
SY EG=0.719369 'Gap between elements 0.721
SY RG=0.20 'Gap between elements 0.20 0.16 TO 0.25
SY STUB=0.9826 'Electric length of stub 0.9797
SY RH=6 'Reflector height 6.42
SY RW=EG 'Reflector width 3.0
SY Rx=RW/2, Rnx=4 'Reflector width / 2 , number of wires
SY Ry=RH/2, Rny=20 'Reflector height / 2 , number of wires
GH 1 10 spacing spacing hr hr hr hr W
GM 0 0 0 0 0 0 0 da 1
GH 2 10 spacing spacing hr hr hr hr W
GM 0 0 0 0 0 0 0 dc 2
GH 3 10 spacing spacing hr hr hr hr W
GM 0 0 0 0 0 0 0 de 3
GW 5 30 hr 0 0 hr 0 da W
GW 6 10 hr 0 db hr 0 dc W
GW 7 10 hr 0 dd hr 0 de W
GW 8 10 hr 0 df hr 0 dg W
GW 9 11 0 0 0 0 0 da W
GX 10 001
GM 100 3 0 0 0 0 EG 0
SM Rnx*2 Rny*2 -RG -EG*1.5 -Ry -RG EG*4.5 -Ry 'Reflector
SC 0 0 -RG EG*4.5 Ry 'Reflector
GM 0 0 0 0 0 0 0 AH
GS 0 0 299.80/freq
GE 1
LD 5 0 0 0 58000000
GN 2 0 0 0 4 0.003
EK
EX 0 5 1 0 1 0 0
TL 5 1 105 1 50 STUB 0 0 0 0
TL 105 1 205 1 50 STUB 0 0 0 0
TL 205 1 305 1 50 STUB 0 0 0 0
FR 0 0 0 0 freq 0
EN