ANTENNA X22810XL1Q

PERFORMANCES:

No of ele

L (mm)

G (dBi)

F/B (dB)

F/Sh (dBi)

F/Sv (dBi)

Hor (◦)

Ver (◦)

Temp (◦K)

G/T (dB)

Tlos

(K)

28

8285

17.53

26.62

16.12

18.02

27.8

23.4

218.5

-5.86

3.6

 

WORKING CONDITION:

Frequency for SWR=1.5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR

at 145.000 MHz

Lowest

Highest

Bandwidth

142.000

146.200

4.200

198.4

1.09:1

 

DIMENSIONS:

 

Ref

De

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

D13

Pos

0

355

535

932

1421

1732

2276

3012

3746

4518

5302

6068

6838

7612

8285

Length

1002

780

919

919

897

873

891

879

871

865

863

861

859

857

841

Height

0

240

180

330

440

510

570

650

725

785

815

825

825

795

765

Dimensions given in milimetres - Diameter of elements 10 milimetres - No boom correction included.

 

CONSTRUCTION OF RADIATOR

H = 780

V = 240

= 10 mm

 

 

COMPARISON (inserted in a part of VE7BQH table, where it belongs according to its boom length)

TYPE OF

ANTENNA

SINGLE ANTENA

FOUR ANTENNAS IN H-STACK

L

(λ)   

GAIN

(dBd)

Z

(ohms)

VSWR

Bandwidth

E

(m)

H

(m)

Ga

(dBd)

Tlos

(K)

Ta

(K)

G/T

(dB)

IK0BZY 12

3.95

14.06

99.2

1.44:1

4.02

3.78

19.93

6.9

222.5

-1.39

DG7YBN 14

3.98

14.09

50.4

1.07:1

4.20

4.00

20.08

5.8

220.4

-1.20

X22810XL1Q

3.98

15.38

198.4

1.09:1

4.90

5.70 

21.47

 3.6

213.1

 -0.33

BVO2-4WL

3.99

14.17

45.0

1.25:1

4.24

4.02

20.14

6.8

241.8

-1.54

DJ9BV 4.0

4.01

14.04

41.5

1.35:1

4.16

3.92

19.91

6.5

249.4

-1.91

K1FO 16

4.01

14.13

35.0

1.15:1

4.16

3.87

20.05

4.7

229.9

-1.42

SV 2SA13

4.01

14.45

52.2

1.41:1

4.38

4.16

20.42

7.0

239.0

-1.21

HG VB-215DX

4.03

14.10

38.6

1.41:1

4.21

3.97

20.00

5.8

250.8

-1.84

CC3219 MOD

4.04

14.13

32.1

1.02:1

4.27

4.07

20.09

5.1

248.2

-1.71

KLM 16LBX

4.09

14.16

198.1

1.29:1

4.26

4.02

20.08

6.3

242.0

-1.61

CC4218XL

4.19

14.28

14.8

1.43:1

4.33

4.13

20.22

8.7

245.0

-1.52

WB9UWA 15

4.18

13.65

26.0

1.51:1

3.75

3.50

19.44

8.3

208.9

-1.61

G0KSC 14LFA3R

4.23

14.44

48.8

1.07:1

4.19

4.00

20.35

2.4

216.5

-0.86

YU7EF 14M

4.24

14.23

48.6

1.07:1

4.07

3.85

20.08

7.0

220.1

-1.20

UA9TC 14RS

4.24

14.33

49.5

1.06:1

4.13

3.80

20.22

5.2

216.7

-0.99

G0KSC 14 LFA

4.30

14.51

47.1

1.22:1

4.24

4.02

20.41

5.5

218.1

-0.82

KF2YN Boxkite 16

4.30

15.85

50.5

1.16:1

5.50

5.10

21.83

6.2

227.4

0.41

InnoV 14 LFA

4.32

14.45

48.6

1.10:1

4.18

3.97

20.34

6.6

215.6

-0.85

YU7EF 14

4.37

14.48

41.0

2.30:1

4.21

4.00

20.33

8.8

220.0

-0.94

YU7EF 14LT

4.37

13.91

47.8

1.29:1

3.89

3.64

19.60

11.7

211.0

-1.49

K1FO 17

4.40

14.44

27.7

1.25:1

4.24

4.02

20.34

4.9

229.5

-1.12

DJ9BV 4.4

4.41

14.32

38.3

1.36:1

4.27

4.07

20.18

6.6

251.5

-1.68

SHARK 20

4.47

14.34

42.8

1.05:1

4.33

4.10

20.19

3.9

258.5

-1.79

I0JXX 16

4.47

14.36

30.4

1.05:1

4.05

4.05

20.24

8.4

217.5

-0.98

CC17B2

4.49

14.53

200.1

1.20:1

4.27

4.07

20.43

5.9

228.6

-1.01

Z(ohms) - measured on 144.100 MHz

Bandwidth VSWR measured on 145.000 MHz

 

 

DIAGRAMS (no loss included)

 

SWR DIAGRAMS (loss included for Al)

 

BEST DISTANCES FOR STACK

 

Four antennas in H-stack

Horizontal

distance (mm)

Vertical distance (mm)

G

(dBi)

TA

(K)

G/T

(dB)

Tlos

(K)

Remark

4330

5.130

23.45

214.0

+0.14

3.6

Per DL6WU formula

4900

5700

23.62

213.1

+0.33

3.6

For max G/T

4000

5600

23.43

211.5

+0.17

3.6

For lowest temperature

Four antennas in H-stack, H=4.90  V=5.70 metres

 

 

 

 

Eight antennas in stack (four in horizontal and two in vertical plane)

Horizontal

distance (mm)

Vertical distance (mm)

G

(dBi)

TA

(K)

G/T

(dB)

Tlos

(K)

4900

5700

26.61

213.5

+3.31

3.6

 

 

Eight antennas in stack (two in horizontal and four in vertical plane)

Horizontal

distance (mm)

Vertical distance (mm)

G

(dBi)

TA

(K)

G/T

(dB)

Tlos

(K)

4900

5700

26.64

213.3

+3.35

3.6