ANTENNA X22005XL5Q

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

15.85

33.94

23.14

19.14

34.0

28.8

217.7

-7.53

5.4

 

WORKING CONDITION:

Frequency for SWR=1.5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR

at 145.000 MHz

Lowest

Highest

Bandwidth

141.400

146.300

4.900

199.7

1.08:1

 

DIMENSIONS:

 

Ref

De

D1

D2

D3

D4

D5

D6

D7

D8

 

Pos

0

350

529

929

1428

1742

2276

3032

3758

4526

5165

Length

1014

794

933

929

920

906

906

906

902

898

873

Height

0

220

180

330

450

520

590

665

725

725

705

Dimensions given in milimetres - Diameter of elements 5 milimetres - No boom correction included.

 

CONSTRUCTION OF RADIATOR

H = 794

V = 220

= 5 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

X22005XL5Q

2.48

13.74

199.7

1.08:1

4.00

4.40

19.73

5.4

217.7

-1.50

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)

STACKING TABLE

Horizontal distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

100

 

 

 

100

 

 

 

110

 

 

 

110

 

 

 

120

 

 

 

120

 

 

 

130

 

 

 

130

 

 

 

140

 

 

 

140

 

 

 

150

 

 

 

150

 

 

 

160

 

 

 

160

 

 

 

170

 

 

 

170

 

 

 

180

 

 

 

180

 

 

 

190

 

 

 

190

 

 

 

200

 

 

 

200

 

 

 

210

 

 

 

210

 

 

 

220

 

 

 

220

 

 

 

230

 

 

 

230

 

 

 

240

 

 

 

240

 

 

 

250

 

 

 

250

 

 

 

260

 

 

 

260

 

 

 

270

 

 

 

270

 

 

 

280

 

 

 

280

 

 

 

290

 

 

 

290

 

 

 

300

 

 

 

300

 

 

 

310

 

 

 

310

 

 

 

320

 

 

 

320

 

 

 

330

 

 

 

330

 

 

 

340

 

 

 

340

 

 

 

350

18.71

215.2

-4.66

350

18.47

222.6

-5.04

360

 

 

 

360

 

 

 

370

18.77

214.8

-4.59

370

18.56

221.3

-4.93

380

 

 

 

380

 

 

 

390

18.81

215.0

-4.56

390

18.66

218.9

-4.78

400

18.83

215.2

-4.54

400

 

 

 

 

18.84

215.6

-4.54

410

18.74

217.4

-4.67

 

 

 

 

420

 

 

 

 

 

 

 

430

18.79

217.1

-4.62

 

 

 

 

440

18.81

217.2

-4.60

 

 

 

 

450

18.82

217.5

-4.60

 

 

 

 

460

 

 

 

*The Table is presented without KF2YN convergence correction applied and serves only to show which distance can be used with good result, and which distances should be avoided. In H-stack it can be slightly changed.

*Yellow coloured good distances

 

 

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

3558

4183

21.76

217.8

-1.62

5.4

Per DL6WU formula

4000

4400

21.88

217.7

-1.50

5.4

For max G/T

3800

4300

21.85

217.3

-1.52

5.4

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

24.91

217.5

+1.53

5.4

 

 

 

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

27.92

219.7

+4.50

5.4