ANTENNA X22006XL3Q

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)

20

5165

15.90

27.11

21.83

19.70

33.6

28.0

219.2

-7.51

5.1

 

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

197.6

1.08:1

 

DIMENSIONS:

 

Ref

De

D1

D2

D3

D4

D5

D6

D7

D8

 

Pos

0

345

529

924

1428

1742

2276

3032

3756

4524

5165

Length

1012

788

931

926

917

906

906

902

900

898

878

Height

0

220

180

330

450

520

590

665

725

725

705

Dimensions given in milimetres - Diameter of elements 6 milimetres - No boom correction included.

 

CONSTRUCTION OF RADIATOR

H = 788

V = 220

= 6 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)

DD0VF 9

2.46

12.47

25.0

1.16:1

3.48

3.18

18.44

4.4

235.8

-3.14

X22006XL3Q

2.48

13.74

197.6

1.08:1

4.00

4.40

19.72

5.1

218.3

-1.52

YU7EF 10LT

2.49

11.84

45.7

1.13:1

3.13

2.82

17.69

5.3

224.3

-3.67

K5GW 10

2.49

12.45

37.4

1.41:1

3.44

3.16

18.38

7.4

234.6

-3.17

G4CQM 9

2.52

12.63

46.4

2.02:1

3.62

3.35

18.68

7.3

244.4

-3.05

G0KSC 10 LFA

2.53

12.61

48.5

1.05:1

3.48

3.18

18.54

2.6

229.8

-2.92

K1FO 12

2.53

12.49

31.1

1.23:1

3.46

3.18

18.42

4.3

240.7

-3.25

YU7EF 10

2.59

12.44

50.3

1.06:1

3.39

3.10

18.34

6.9

227.8

-3.08

Gulf Alpha 11

2.60

12.33

204.1

1.07:1

3.46

3.19

18.32

5.3

248.9

-3.49

Gulf Alpha 11 XPOL

2.60

12.31

188.1

1.07:1

3.32

3.32

18.29

5.6

249.8

-3.53

G0KSC 10LFA+2

2.60

12.45

47.4

1.24:1

3.39

3.09

18.35

4.1

226.7

-3.06

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

3599

4300

21.82

218.6

-1.58

5.1

Per DL6WU formula

4000

4400

21.87

218.3

-1.52

5.1

For max G/T

4000

4400

21.87

218.3

-1.52

5.1

For lowest temperature

Four antennas in H-stack, H=4.00  V=4.60 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)

4000

4400

24.90

218.1

+1.51

5.1

 

 

 

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)

4000

4400

27.94

221.1

+4.49

5.1

 

SIXTEEN ANTENNAS AT H=4.00+4.00+4.00 AND V=4.40+4.40+4.40 METRES - DIAGRAMS