ANTENNA X22608XL1Q

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)

26

7505

17.15

28.26

27.00

18.12

28.8

24.0

218.8

-6.25

4.5

 

WORKING CONDITION:

Frequency for SWR=1.5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR

at 145.000 MHz

Lowest

Highest

Bandwidth

140.600

146.500

5.900

197.4

1.12:1

 

DIMENSIONS:

 

Ref

De

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

Pos

0

365

529

928

1421

1732

2276

3012

3746

4518

5302

6068

6842

7505

Length

1006

792

927

925

907

881

895

891

889

885

881

879

873

851

Height

0

±240

±180

±330

±440

±510

±570

±650

±725

±785

±805

±805

±785

±755

Dimensions given in milimetres - Diameter of elements 8 milimetres - No boom correction included.

 

CONSTRUCTION OF RADIATOR

H = 792

V = 240

Ø= 8 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)

17LQD EKM#1

3.59

13.30

50.0

1.23:1

3.75

3.52

19.21

4.2

242.1

-2.48

17LQD EKM#2

3.59

13.39

50.0

1.25:1

3.75

3.50

19.32

4.5

227.5

-2.10

X22608XL1Q

3.60

15.00

197.4

1.12:1

4.60

5.60

21.07

4.5

214.6

-0.10

DL6WU 14

3.61

13.63

51.4

1.28:1

3.94

3.70

19.53

2.6

246.9

-2.24

DJ9BV 3.6

3.61

13.67

53.5

1.30:1

4.00

3.78

19.57

5.4

249.7

-2.25

K1FO 15

3.64

13.76

39.1

1.30:1

3.94

3.71

19.67

4.8

233.0

-1.85

DK7ZB 12

3.83

14.17

26.8

1.46:1

4.21

4.00

20.11

6.9

237.4

-1.49

UA9TC 13RS

3.83

13.95

49.7

1.07:1

3.94

3.70

19.84

5.2

215.6

-1.35

G0KSC 13 LFA

3.84

14.10

48.5

1.14:1

4.07

3.85

20.02

4.4

221.1

-1.28

InnoV 13 LFA

3.86

13.98

48.7

1.20:1

4.02

3.77

19.89

7.0

219.5

-1.37

YU7EF 13

3.92

14.12

47.9

2.55:1

4.05

3.82

20.00

6.0

220.1

-1.28

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

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

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

4183

5003

23.07

215.6

-0.27

4.5

Per DL6WU formula

4600

5600

23.22

214.6

-0.10

4.5

For max G/T

4000

5500

23.10

212.5

-0.17

4.5

For lowest temperature

Four antennas in H-stack, H=4.60  V=5.60 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)

4600

5600

26.22

215.7

+2.88

4.5

 

 

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)

4600

5600

26.24

213.3

+2.95

4.5