144NX11 4nec2 & AOP analysis...

144NX11 EME YAGI VERTICAL PATTERN 144NX11 EME YAGI TOTAL PATTERN

A truly awesome design covering 144 - 145.5MHz with ease, F/R H-Plane >26dB and forward gain at 144.100MHz 13.03dBd...

Azimuth Beamwidth 33° Elevation Beamwidth 36°

144NX11

Convergence test 10/22/60 segments per λ/2

10 segments

22 segments

60 segments

Swept Analysis

Swept Analysis
Swept Analysis
Swept Analysis
Swept Analysis
Swept Analysis

144NX11 in 4nec2 VSWR

Dimensions .ANT file (Symbolic Dimensions)

144NX11 AOP BUILD 10-07-2013
Free Space Symmetric
144.500 MHz
11 6063-T832 wires, millimeters
padia = 4.7625
dedia = 15.8750
rp = 0
dep = 280.0000
d1p = 386.0000
d2p = 764.0000
d3p = 1390.0000
d4p = 2119.0000
d5p = 2904.0000
d6p = 3734.0000
d7p = 4573.0000
d8p = 5438.0000
d9p = 6238.0000
r = 513.0000
de = 509.5000
d1 = 486.5000
d2 = 477.0000
d3 = 465.0000
d4 = 458.0000
d5 = 453.0000
d6 = 449.0000
d7 = 443.0000
d8 = 434.0000
d9 = 428.0000
1 rp -r 0 rp r 0 padia
1 dep -de 0 dep de 0 dedia
1 d1p -d1 0 d1p d1 0 padia
1 d2p -d2 0 d2p d2 0 padia
1 d3p -d3 0 d3p d3 0 padia
1 d4p -d4 0 d4p d4 0 padia
1 d5p -d5 0 d5p d5 0 padia
1 d6p -d6 0 d6p d6 0 padia
1 d7p -d7 0 d7p d7 0 padia
1 d8p -d8 0 d8p d8 0 padia
1 d9p -d9 0 d9p d9 0 padia
1 source
Wire 2, center

144NX11.nec (Symbolic Dimensions)

CM GX 11 010
CM
CE
SY PADIA = 4.7625
SY DEDIA = 15.8750
SY RP = 0
SY DEP = 280.0000
SY D1P = 386.0000
SY D2P = 764.0000
SY D3P = 1390.0000
SY D4P = 2119.0000
SY D5P = 2904.0000
SY D6P = 3734.0000
SY D7P = 4573.0000
SY D8P = 5438.0000
SY D9P = 6238.0000
SY R = 513.0000
SY DE = 509.5000
SY D1 = 486.5000
SY D2 = 477.0000
SY D3 = 465.0000
SY D4 = 458.0000
SY D5 = 453.0000
SY D6 = 449.0000
SY D7 = 443.0000
SY D8 = 434.0000
SY D9 = 428.0000
GW 1 19 RP -R 0 RP R 0 (PADIA)/2
GW 2 19 DEP -DE 0 DEP DE 0 (DEDIA)/2
GW 3 17 D1P -D1 0 D1P D1 0 (PADIA)/2
GW 4 17 D2P -D2 0 D2P D2 0 (PADIA)/2
GW 5 17 D3P -D3 0 D3P D3 0 (PADIA)/2
GW 6 17 D4P -D4 0 D4P D4 0 (PADIA)/2
GW 7 17 D5P -D5 0 D5P D5 0 (PADIA)/2
GW 8 17 D6P -D6 0 D6P D6 0 (PADIA)/2
GW 9 17 D7P -D7 0 D7P D7 0 (PADIA)/2
GW 10 17 D8P -D8 0 D8P D8 0 (PADIA)/2
GW 11 15 D9P -D9 0 D9P D9 0 (PADIA)/2
GS 0 0 mm
GE 0
LD 5 1 0 0 30800000
LD 5 2 0 0 30800000
LD 5 3 0 0 30800000
LD 5 4 0 0 30800000
LD 5 5 0 0 30800000
LD 5 6 0 0 30800000
LD 5 7 0 0 30800000
LD 5 8 0 0 30800000
LD 5 9 0 0 30800000
LD 5 10 0 0 30800000
LD 5 11 0 0 30800000
GN -1
EK
EX 0 2 10 0 1 0 0 0
FR 0 0 0 0 144.5 0
EN

When calculating the element lengths remember that AOP shows the element half length so multiply the figure shown in the ELEMENTS TABLE above by two (X2). All parasitic elements including the Reflector are 3/16 Inch (4.7625mm) OD rod whilst the DE is 5/8 Inch (15.8750mm) OD tube.

Azimuth/Elevation plots

Azimuth

Azimuth linear plot

Elevation

Elevation linear plot

Single 144NX11 in TANT

Single 144NX11 in TANT

Yagi Four-Stack 144NX11 in TANT

Yagi Four-Stack 144NX11 in TANT

144NX11 Q-factor (Average Q = 30.58)

144NX11 Q-factor

4144NX11.nec