ANTENNA X22208XL3Q

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)

22

6005

16.44

31.24

17.25

18.98

31.8

26.6

217.9

-6.94

3.9

 

WORKING CONDITION:

Frequency for SWR=1.5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR

at 145.000 MHz

Lowest

Highest

Bandwidth

141.600

147.600

6.000

196.6

1.15:1

 

DIMENSIONS:

 

Ref

De

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

Pos

0

335

534

940

1418

1746

2286

3022

3776

4538

5319

6005

Length

1008

794

929

923

905

879

887

887

885

883

881

859

Height

0

230

185

345

445

515

585

655

725

765

765

735

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

 

CONSTRUCTION OF RADIATOR

H = 794

V = 230

= 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 10

2.86

13.05

22.6

1.47:1

3.69

3.43

19.00

7.0

232.5

-2.51

WB9UWA 12

2.87

12.73

23.9

1.47:1

3.48

3.20

18.61

7.0

223.0

-2.72

DK7ZB 10

2.87

13.00

25.8

1.61:1

3.87

3.60

19.17

6.8

247.5

-2.62

X22008XL3Q

2.88

14.24

196.6

1.15:1

4.89

5.50

20.39

3.9

216.8

-0.82

K1FO 13

2.89

12.94

24.7

1.38:1

3.64

3.39

18.88

4.6

239.2

-2.76

M2 20 XPOL

2.97

13.11

200.1

1.20:1

3.64

3.64

19.09

6.3

241.7

-2.59

G0KSC 11 LFA

2.98

13.11

48.3

1.06:1

3.78

3.65

19.14

3.0

224.9

-2.23

UA9TC 11RS

2.98

13.09

50.9

1.10:1

3.66

3.37

19.01

5.0

223.0

-2.34

G0KSC 11OWL

3.00

13.16

49.8

1.42:1

3.69

3.44

19.09

7.7

224.6

-2.27

BVO-3WL

3.01

13.43

52.7

3.08:1

3.90

3.70

19.38

8.6

253.1

-2.50

G0KSC 11LFA3R

3.01

13.00

50.1

1.08:1

3.60

3.33

18.92

4.0

223.0

-2.41

YU7EF 11

3.04

13.07

49.0

1.62:1

3.56

3.30

18.87

4.7

222.6

-2.46

F9FT 16

3.06

12.64

20.8

1.37:1

3.54

3.26

18.63

6.0

241.3

-3.05

SM2CEW 14 XPOL

3.08

13.04

19.2

1.40:1

3.50

3.50

18.96

6.9

226.4

-2.44

CD15LQDver2

3.09

12.90

50.0

1.25:1

4.00

3.80

19.02

4.4

238.8

-2.61

CD15LQDver1

3.10

12.83

50.0

1.23:1

4.00

3.80

18.97

4.2

249.9

-2.86

I5MZY  13

3.10

12.97

49.3

1.50:1

3.56

3.30

18.83

6.0

225.9

-2.56

MBI ModFT17

3.12

13.29

50.1

1.41:1

3.85

3.60

19.27

8.2

239.5

-2.37

F9FT 17

3.14

12.87

25.8

1.32:1

3.68

3.50

18.90

5.8

236.4

-2.69

CC3219

3.17

12.77

18.3

1.49:1

4.27

3.66

18.80

5.7

307.8

-3.93

CC3219 MOD

3.17

13.25

29.0

1.06:1

3.87

3.62

19.27

5.1

245.6

-2.48

BQH 13

3.19

13.30

50.0

1.11:1

3.85

3.60

19.28

4.3

244.9

-2.46

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

3797

4522

22.34

217.3

-1.03

3.9

Per DL6WU formula

4800

5500

22.54

216.8

-0.82

3.9

For max G/T

3800

5500

22.42

214.9

-0.90

3.9

For lowest temperature

Four antennas in H-stack, H=4.30  V=5.50 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)

4800

5500

25.57

217.3

+2.20

3.9

 

 

 

Sixteen antennas (four in horizontal and four antennas in vertical plane)

Horizontal

distance (mm)

Vertical distance (mm)

G

(dBi)

TA

(K)

G/T

(dB)

Tlos

(K)

4800

5500

28.62

214.0

+5.31

3.3

 

SIXTEEN ANTENNAS AT H=4.80+4.80+4.80 AND V=5.50+5.50+5.50 METRES - DIAGRAMS