Here you will find information on how antennas behave when stacked. The
antennas found in the table are the ones currenly used by people on EME. For an
antenna to qualify for a place in the table it must have been built by someone,
antennas that only live as computer files are not accepted.
G/T SIMULATIONS OF A 4 BAY ARRAY
OF YAGI ANTENNAS ON 2 METERS
144.1 MHz
TYPE OF
L GAIN
E H
Ga Tlos
Ta G/T
ANTENNA
(WL) (dBd) (M)
(M) (dBd) (K)
(K)
W1JR 8 MOD 1.80
11.17 3.09 2.76
17.15 3.04 266.57 -4.96
DJ9BV 1.8
1.81 11.38 3.16 2.80
17.31 3.16 267.12 -4.81
BQH8A
1.87 11.63 3.27 2.96
17.64 6.77 262.35 -4.40
M2
9 2.12
12.08 3.34 3.04
18.08 8.77 254.38 -3.83
DJ9BV 2.1
2.14 11.92 3.33 3.04
17.92 4.66 260.72 -4.10
*OZ5HF 9
2.16 11.75 2.70 2.50
17.21 2.95 264.46 -4.87
OZ5HF 9
2.16 11.75 3.25 2.96
17.71 2.99 262.13 -4.33
F9FT 11
2.17 11.71 3.27 2.97
17.70 5.21 262.64 -4.35
*CC 13B2
2.17 11.83 2.90 2.79
17.67 4.40 256.63 -4.28
CC 13B2
2.17 11.83 3.33 3.04
17.83 4.46 263.15 -4.23
*CC 215WB
2.19 11.86 3.05 3.05
17.80 4.34 286.14 -4.62
CC 215WB
2.19 11.86 3.48 3.19
17.87 4.40 287.83 -4.58
Eagle 10
2.38 12.28 3.44 3.15
18.29 6.07 249.46 -3.54
DK7ZB 9
2.39 12.11 3.34 3.05
18.03 3.95 250.19 -3.81
*Flexa 224 2.49
11.90 3.50 3.30
18.01 8.29 264.66 -4.07
Flexa 224
2.48 11.90 3.30 3.31
17.87 8.32 257.77 -4.10
K5GW 10
2.49 12.57 3.45 3.16
18.53 5.72 241.20 -3.15
#K5GW 10
2.49 12.57 3.30 3.30
18.58 5.76 242.35 -3.12
K1FO 12
2.53 12.49 3.46 3.18
18.44 3.51 245.43 -3.31
I0JXX 12
2.68 12.69 3.59 3.32
18.68 4.45 247.49 -3.11
BQH 12J
2.80 12.82 3.66 3.40
18.85 3.09 252.88 -3.03
#BQH 12J
2.80 12.82 3.53 3.53
18.88 3.06 252.93 -3.06
*M2 12
2.84 12.79 3.05 3.05
18.59 5.19 237.40 -3.02
M2
12 2.84 12.79
3.48 3.21 18.71 5.15
237.98 -2.91
BQH
10 2.86 13.07
3.70 3.44 19.05 6.59
240.48 -2.62
#BQH
10 2.86 13.07
3.57 3.57 19.11 6.56
242.58 -2.59
DK7ZB
10 2.87 13.15 3.78
3.52 19.15 5.99
251.35 -2.71
WB9UWA 12 2.90
12.82 3.45 3.17
18.73 6.93 227.71 -2.70
BQH 13
2.92 13.09 3.69 3.44
19.07 3.92 241.77 -2.62
#BQH 13
2.92 13.09 3.57 3.57
19.11 3.95 243.09 -2.60
*M2 20 XPOL 2.97
13.19 3.65 3.65
19.20 6.74 252.79 -2.68
#M2 20 XPOL 2.97
13.19 3.65 3.65
19.20 6.74 252.79 -2.68
M2 20 XPOL 2.97
13.19 3.77 3.52
19.16 6.77 251.00 -2.69
*BVO-3WL
3.00 13.50 3.90 3.70
19.48 5.35 264.59 -2.60
BVO-3WL
3.00 13.50 4.01 3.77
19.49 5.38 266.39 -2.62
#BVO-3WL
3.00 13.50 3.89 3.89
19.52 5.45 265.97 -2.58
*CD15LQD
3.11 12.87 4.00 3.80
18.96 4.57 261.85 -3.08
CD15LQD
3.11 12.87 3.68 3.42
18.86 4.49 259.53 -3.14
CD15LQD MOD 3.11
13.24 3.83 3.58
19.24 3.73 253.86 -2.66
MBI FT17
3.12 13.34 3.84 3.59
19.31 6.02 246.36 -2.46
*CC3219
3.14 12.66 4.27 3.66
18.64 4.62 349.69 -4.65
CC3219
3.14 12.66 4.05 3.80
18.65 4.65 354.61 -4.70
CC3219 MOD 3.14
13.32 3.91 3.67
19.32 3.74 258.52 -2.66
*F9FT 17
3.15 12.87 3.68 3.50
18.92 5.74 243.96 -2.81
F9FT 17
3.15 12.87 3.57 3.30
18.84 5.74 240.69 -2.83
DJ9BV 3.2
3.22 13.36 3.85 3.58
19.34 3.99 246.42 -2.42
K1FO 14
3.25 13.36 3.78 3.54
19.30 4.26 243.48 -2.42
MBI 3.4
3.41 13.69 3.88 3.63
19.63 7.68 235.12 -1.94
*SM5BSZ 11 3.51
13.86 3.50 3.50
19.71 3.16 232.02 -1.80
SM5BSZ 11
3.51 13.86 3.96 3.72
19.79 3.13 238.58 -1.84
*SM5BSZ 11A 3.52
13.97 4.00 4.00
19.96 3.13 244.17 -1.77
SM5BSZ 11A 3.52
13.97 4.05 3.81
19.91 3.07 244.00 -1.82
17LQD EKM
3.59 13.37 3.83 3.59
19.35 4.57 252.49 -2.53
17LQDE BQH 3.59
13.79 4.04 3.81
19.77 3.95 248.40 -2.04
DJ9BV 3.6
3.61 13.73 4.00 3.77
19.64 4.25 258.21 -2.33
K1FO 15
3.65 13.78 3.94 3.70
19.70 3.33 238.55 -1.93
DK7ZB 12
3.83 14.30 4.34 4.12
20.26 5.66 251.50 -1.60
DJ9BV OPT
3.99 14.22 4.29 4.08
20.18 4.99 248.48 -1.63
#DJ9BV OPT 3.99
14.22 4.19 4.19
20.21 5.03 247.16 -1.57
#SV 2SA13
4.01 14.46 4.20 4.20
20.44 4.67 246.84 -1.34
SV 2SA13
4.01 14.46 4.37 4.16
20.43 4.67 247.35 -1.36
DJ9BV 4.0
4.02 14.07 4.15 3.92
19.98 5.67 255.50 -1.95
HG215DX
4.02 14.20 4.25 4.03
20.14 6.44 258.47 -1.84
CC3219 MOD 4.05
14.20 4.34 4.13
20.17 4.28 256.17 -1.77
*CC4218XL
4.15 14.14 4.08 3.85
20.03 7.25 265.93 -2.07
CC4218XL
4.15 14.14 4.45 4.23
20.11 7.17 266.22 -2.00
WB9UWA 15
4.18 13.62 3.69 3.43
19.48 8.00 214.69 -1.69
CC4218 MOD 4.18
14.29 4.24 4.02
20.24 5.25 244.97 -1.51
K1FO 17
4.41 14.44 4.22 4.00
20.35 4.34 234.51 -1.21
DJ9BV 4.4
4.42 14.36 4.28 4.06
20.25 6.19 256.51 -1.70
SHARK 20
4.46 14.39 4.32 4.10
20.26 2.90 264.04 -1.81
I0JXX 16
4.47 14.39 4.17 3.94
20.32 6.09 223.60 -1.03
#I0JXX 16
4.47 14.39 4.06 4.06
20.35 6.11 223.23 -0.99
*CC17B2
4.51 14.53 3.66 3.51
20.22 4.83 233.29 -1.31
CC17B2
4.51 14.53 4.28 4.06
20.47 4.99 234.82 -1.08
DK7ZB 14
4.71 15.07 4.87 4.67
21.07 9.12 249.36 -0.77
K1FO 18
4.77 14.72 4.35 4.14
20.63 4.54 234.66 -0.93
*M2 28 XPOL 4.80
15.22 4.50 4.50 21.14
17.04 258.67 -0.84
#M2 28 XPOL 4.80
15.22 4.76 4.76 21.22
17.15 257.77 -0.76
M2 28 XPOL 4.80
15.22 4.86 4.66 21.19
17.11 257.51 -0.77
HG217DX
4.82 14.81 4.63 4.43
20.78 8.14 256.05 -1.16
DJ9BV 4.8
4.83 14.65 4.40 4.18
20.57 5.85 255.84 -1.37
*M2 5WL
4.83 14.80 4.15 3.84
20.56 8.49 254.92 -1.36
M2 5WL
4.83 14.80 4.56 4.35
20.74 8.70 251.18 -1.11
*SM5BSZ 14A 4.89
15.14 4.00 4.00
20.93 4.33 232.02 -0.58
SM5BSZ 14A 4.89
15.14 4.54 4.33
21.03 4.43 238.02 -0.59
*SM5BSZ 14 4.95
15.29 5.20 5.20
21.37 3.13 246.72 -0.41
SM5BSZ 14
4.95 15.29 4.72 4.51
21.19 3.02 233.77 -0.68
SM2CEW 19
4.98 14.91 4.47 4.26
20.84 9.38 233.77 -0.70
#SM2CEW 19 4.98
14.91 4.37 4.37
20.87 9.00 232.88 -0.66
*BVO-5WL
5.02 15.05 4.58 4.40
20.99 5.21 243.42 -0.73
#BVO-5WL
5.02 15.05 4.59 4.59
21.04 5.24 242.36 -0.66
BVO-5WL
5.02 15.05 4.69 4.49
21.01 5.23 242.70 -0.70
K5GW 17
5.06 14.99 4.64 4.44
20.96 6.16 244.55 -0.78
K1FO 19
5.18 15.01 4.47 4.27
20.92 4.04 232.19 -0.59
#RU1AA 15
5.27 15.55 4.85 4.85
21.55 6.02 235.76 -0.03
RU1AA 15
5.27 15.55 4.85 4.65
21.50 5.99 236.28 -0.09
*M2 18XXX
5.32 15.07 4.27 3.96
20.85 7.90 243.30 -0.87
M2 18XXX
5.32 15.07 4.55 4.35
21.01 7.95 240.56 -0.66
M2 32 XPOL 5.62
15.70 5.23 5.04 21.69
15.02 250.74 -0.16
#M2 32 XPOL 5.62
15.70 5.13 5.13 21.71
15.04 251.20 -0.15
*M2 19XXX 5.73
15.41 4.27 4.04
21.15 8.75 238.80 -0.49
M2 19XXX
5.73 15.41 4.70 4.51
21.36 8.75 235.52 -0.22
#M2 32 XPOL 5.73
15.88 5.07 5.07 21.87
16.03 248.46 +0.06
M2 32 XPOL 5.73
15.88 4.98 5.16 21.84
16.03 248.11 +0.04
DK7ZB 17! @5.81
15.69 5.19 5.01 21.67
15.67 233.94 +0.12
BVO-6WL
6.00 15.69 4.75 4.93
21.63 5.12 231.63 +0.13
#BVO-6WL
6.00 15.69 4.84 4.84
21.66 5.13 231.84 +0.15
AF9Y 22
6.15 15.75 5.04 4.86
21.72 10.04 230.73 +0.23
MBI 6.6
6.6 16.14 5.46 5.29
22.14 13.09 238.73 +0.51
#MBI 6.6
6.6 16.14 5.38 5.38
22.17 13.07 239.28 +0.53
BQH 25
7.29 16.31 5.22 5.04
22.25 9.83 224.18 +0.89
#BQH 25
7.29 16.31 5.13 5.13
22.28 9.86 224.61 +0.91
K2GAL 21
7.65 16.80 5.75 5.59
22.75 19.58 245.81 +0.99
M2 8WL(old) 7.71
16.55 5.28 5.10
22.40 9.52 231.46 +0.90
M2 8WL(new) 8.05
17.05 5.82 5.67 23.01
11.53 237.20 +1.40
Legend:
L = Length in Wavelengths
Gain = Gain in dBd of a single
antenna
E = E
plane (Horizontal) stacking in Meters.
H = H plane (Vertical) stacking in
Meters.
Ga = Gain in dBd
of a 4 bay array
Tlos = The internal
resistance of the antenna in degrees Kelvin.
Ta = The total temperature of the antenna
or array in degrees Kelvin. This
includes all the
side lobes, rear lobes and internal resistance of the
antenna or
array.
G/T = Figure of merit
used to determine the receive capability of the antenna
or array = (Ga +
2.15) - (10*log Ta). The more positive figure the better.
Notes:
1. The
Program used to calculate E/H Stacking,G,Ga and G/T is YAGI
ANALYSIS 3.54 by Goran Stenberg,SM2IEV.
2.
Temperatures used: Tsky=200 degrees;Tearth=1000 degrees
3. All
dipoles have been adjusted to give a J of under +/- .5
4. No
stacking harness losses or H frame effects are included in the
gain figures.
5. All
stacking dimensions EXCEPT those marked with a "*" and "#" are
calculated from the DL6WU stacking formula.
6.
Antennas marked with a "*" have stacking dimensions recommended by
the manufacturer or designer.
7.
Antennas marked with a "#" have stacking dimensions for XPOL
antennas by VE7BQH.
8.
Antennas marked with a "@" have some or all 10MM elements. All others
are 4MM to 6MM.
9.
Manufacturer/Designer Legend:
AF9Y = AF9Y
BVO =
Eagle/DJ9BV
I0JXX = I0JXX
BQH =
VE7BQH
K1FO = K1FO
CC =
Cushcraft
K2GAL = K2GAL
CC MOD =
VE7BQH
K5GW = Texas Towers/K5GW
CD = CUE
DEE
M2 = M^2
CD MOD =
VE7BQH
MBI = F/G8MBI
DJ9BV =
DJ9BV
OZ5HF = Vargarda
DJ9BV OPT =
DJ9BV
RU1AA = RU1AA
DK7ZB =
DK7ZB
SHARK = SHARK (Italian)
EKM MOD =
SM2EKM
SM2CEW = SM2CEW/VE7BQH
F9FT =
F9FT
SV = Svenska Antennspecialisten
AB
HG =
HYGAIN
W1JR = VE7BQH (Mininec error)
Flexa =
FlexaYagi
WB9UWA = WB9UWA
LIONEL H. EDWARDS
VE7BQH
Issue 44 October 13, 2003