ANTENNA X22408XL1Q

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)

24

6725

16.81

31.51

29.44

18.11

30.4

25.6

218.8

-6.59

3.9

 

WORKING CONDITION:

Frequency for SWR=1.5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR

at 145.000 MHz

Lowest

Highest

Bandwidth

140.600

147.700

7.100

198.1

1.11:1

 

DIMENSIONS:

 

Ref

De

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

Pos

0

322

518

928

1422

1744

2276

3022

3756

4528

5304

6082

6725

Length

1008

792

923

919

903

877

887

885

883

881

875

873

853

Height

0

225

185

335

445

515

575

655

715

775

795

765

735

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

 

CONSTRUCTION OF RADIATOR

H = 792

V = 225

= 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)

BQH 13

3.19

13.30

50.0

1.11:1

3.85

3.60

19.28

4.3

244.9

-2.46

DJ9BV 3.2

3.22

13.30

71.8

1.36:1

3.85

3.58

19.29

6.5

239.5

-2.35

DG7YBN 12

3.23

13.45

46.2

1.40:1

3.99

3.83

19.47

5.6

231.0

-2.02

X22408XL1Q

3.23

14.66

196.1

1.08:1

4.60

5.70

20.76

3.9

216.3

-0.44

K1FO 14

3.26

13.36

29.6

1.42:1

3.80

3.56

19.29

4.7

237.8

-2.32

G0KSC 12LFA

3.32

13.44

49.9

1.07:1

3.78

3.52

19.36

4.0

220.5

-1.92

G0KSC 12OWA

3.33

13.33

49.3

1.05:1

3.85

3.50

19.28

5.7

224.3

-2.08

G4CQM 11

3.36

13.55

46.2

1.94:1

3.92

3.66

19.50

8.3

232.0

-2.01

DK7ZB 11

3.40

13.68

27.9

1.27:1

3.94

3.71

19.61

5.0

234.3

-1.94

UA9TC 12RS

3.40

13.55

51.7

1.09:1

3.80

3.56

19.46

5.1

218.2

-1.78

G0KSC 12LFA

3.41

13.64

50.1

1.18:1

3.90

3.70

19.58

4.3

221.2

-1.72

MBI 3.4

3.42

13.58

37.7

1.62:1

3.87

3.62

19.49

9.2

227.7

-1.93

G0KSC 12LFA 2R

3.43

13.46

50.3

1.06:1

3.95

3.75

19.48

4.9

220.5

-1.80

InnoV 12 LFA

3.43

13.56

49.3

1.07:1

3.80

3.60

19.47

5.4

218.9

-1.78

Gulf Alpha 14

3.44

13.24

198.0

1.21:1

3.71

3.44

19.14

5.5

229.6

-2.32

Gulf Alpha 114 XPOL

3.44

13.25

200.5

1.21:1

3.57

3.57

19.14

5.5

231.8

-2.37

YU7EF 12

3.49

13.67

45.4

1.77:1

3.85

3.60

19.55

6.1

221.1

-1.75

SM5BSZ 11

3.51

13.95

54.4

3.06:1

4.05

3.80

19.81

6.3

238.8

-1.82

SM5BSZ 11A

3.53

14.01

52.3

3.03:1

4.13

3.92

19.93

6.1

245.4

-1.82

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

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

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

3967

4695

22.72

216.5

-0.64

3.9

Per DL6WU formula

4600

5700

22.91

216.3

-0.44

3.9

For max G/T

3900

5500

22.79

214.3

-0.52

3.9

For lowest temperature

 

 

 

 

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

5700

25.93

217.4

+2.56

3.9