ANTENNA QY21306XL3D6

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)

13

7705

15.99

29.27

20.73

18.14

31.2

32.8

220.4

-7.44

6.0

 

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

198.2

1.08:1

 

DIMENSIONS:

 

Ref

De1

De2

D1

D2

D3

D4

D5

All elements made of Al rods Ǿ6mm

The height of all rectangles is 500

All dimensions given in milimetres

Pos

0

250

350

420

728

1286

1964

2725

Length

1016

1028

856

942

953

931

911

895

 

DQ1

DQ2

DQ3

DQ4

 DQ5

DQ6 

 

 

Pos

3556

4374

5284

6102

7036

7705

 

 

Length

520

498

488

482

476

472

 

 

No boom correction included.

 

COMPARISON

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)

QY21306XL3D6

3.70

13.84

198.2

1.08:1

4.00

3.92

19.80

6.0

218.8

-1.45

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

Data taken from VE7BQH G/T table

 

DIAGRAMS (no loss included)

 

SWR DIAGRAMS (losses included)

 

 

STACKING

Horizontal distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

100

 

 

 

100

16.92

222.3

-6.53

110

16.37

239.6

-7.41

110

17.11

217.5

-6.25

120

16.79

237.2

-6.95

120

17.26

215.1

-6.05

130

17.06

232.5

-6.59

130

17.37

214.9

-5.93

140

17.26

229.0

-6.32

140

17.46

216.2

-5.87

150

17.40

226.7

-6.14

150

17.55

217.2

-5.80

160

17.53

225.2

-5.98

160

17.63

217.1

-5.72

170

17.63

224.3

-5.86

170

17.71

217.0

-5.64

180

17.72

223.7

-5.76

180

17.79

217.1

-5.56

190

17.81

223.3

-5.66

190

17.87

217.5

-5.49

200

17.88

223.1

-5.59

200

17.95

218.1

-5.42

210

17.96

222.8

-5.50

210

18.02

218.9

-5.37

220

18.03

222.5

-5.43

220

18.09

220.0

-5.32

230

18.10

222.1

-5.35

230

18.16

221.1

-5.27

240

18.17

221.6

-5.27

240

18.22

222.1

-5.23

250

18.23

221.0

-5.20

250

18.29

222.7

-5.17

260

18.30

220.4

-5.11

260

18.36

222.8

-5.10

270

18.37

219.7

-5.03

270

18.43

222.5

-5.03

280

18.44

219.1

-4.95

280

18.50

221.7

-4.94

290

18.51

218.4

-4.87

290

18.57

220.6

-4.85

300

18.57

217.8

-4.79

300

18.63

219.5

-4.75

310

18.64

217.3

-4.71

310

18.72

218.4

-4.65

320

18.71

216.9

-4.63

320

18.79

217.4

-4.57

330

18.77

216.5

-4.57

330

18.85

216.8

-4.49

340

18.82

216.3

-4.51

340

18.91

216.6

-4.43

350

18.88

216.1

-4.45

350

18.96

216.7

-4.38

360

18.93

216.1

-4.40

360

19.00

217.1

-4.35

370

18.97

216.2

-4.36

370

19.03

217.6

-4.33

380

19.01

216.3

-4.32

380

19.07

218.0

-4.30

390

19.04

216.5

-4.30

390

19.09

218.4

-4.29

400

19.07

216.7

-4.27

400

19.12

218.7

-4.26

410

19.10

217.0

-4.25

410

19.14

219.0

-4.25

420

19.12

217.3

-4.23

420

19.16

219.0

-4.23

430

19.14

217.6

-4.22

430

19.17

219.0

-4.22

440

19.15

217.9

-4.22

440

19.18

218.9

-4.20

450

19.16

218.2

-4.21

450

19.19

218.6

-4.19

460

19.17

218.5

-4.21

460

19.20

218.2

-4.17

 

 

 

 

470

19.21

217.7

-4.15

 

 

 

 

480

19.21

217.2

-4.14

 

 

 

 

490

19.22

216.7

-4.12

 

 

 

 

500

19.22

216.3

-4.11

 

 

 

 

510

19.22

216.0

-4.11

 

 

 

 

520

19.22

215.8

-4.10

*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.

 

BEST DISTANCES FOR 4 ANTENNAS IN H-STACK

Horizontal

distance (cm)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Tloss

(K)

Remark

3868

3684

21.86

216.9

-1.50

5.7

Per DL6WU formula

4200

4120

22.02

220.2

-1.41

5.7

For max G/T

3640

3520

21.71

215.8

-1.63

5.7

For lowest temperature

 

 

XPOL VERSION

Horizontal components: Same as above

Vertical components: Same as above. except:

PERFORMANCES:

Polarization

G (dBi)

F/B (dB)

F/Sh (dBi)

F/Sv (dBi)

Hor (◦)

Ver (◦)

Temp (◦K)

G/T (dB)

Tlos

(K)

Horizontal

15.99

29.27

20.73

18.14

31.2

32.8

220.4

-7.44

6.0

Vertical

16.05

27.92

16.94

20.11

32.2

30.8

220.6

-7.39

6.3

 

Horizontal polarisation patterns

 

 

 

Vertical polarisation patterns